What is Tidal Energy? Explained

Renewable Energy Tax Credits reduce project CAPEX via ITC/PTC incentives for solar, wind, battery storage, and EV charging, supporting grid modernization, power electronics, and IEEE-compliant interconnections while accelerating decarbonization and load flexibility.

What Are Renewable Energy Tax Credits?

ITC/PTC credits cut capex for electrical systems—solar PV, wind, storage, EV chargers—boosting ROI and grid reliability.

✅ Offsets inverter, transformer, and protection system costs

✅ Applies to solar, wind, storage, microgrids, and EVSE

✅ Encourages IEEE 1547 interconnects and smart inverters

The Government of Canada wants Canadians to invest in a healthier environment, a more stable energy future and a more competitive economy, so it offers innovative Renewable Energy Tax Credits. For an overview of complementary programs, the resource at alternative energy incentives outlines how federal and provincial measures align with investment goals today.

In order to achieve these goals, two specific Renewable Energy Tax Credit measures are available to encourage investments in energy efficiency and renewable energy projects:

• Class 43.1 in Schedule II of the Income Tax Act allows taxpayers an accelerated Renewable Energy Tax Credit write-off of certain equipment that is designed to produce energy in a more efficient way or to produce energy from alternative renewable energy sources.

• Canadian Renewable and Conservation Expenses (CRCE) is a category of fully deductible expenditures associated with the start-up of renewable energy and energy conservation projects for which at least 50 per cent of the capital costs of the property would be described in Class 43.1.

Investors can also consult alternative energy tax credits to understand how project structures interact with other deductions and incentives available in Canada.

Investments in energy efficiency and renewable energy are helping to reduce Canada’s consumption of fossil fuels and minimize the production of greenhouse gases that contribute to climate change and other environmental problems. These investments also contribute to the development of new technologies1 and lead to export opportunities. It’s all part of the government’s ongoing efforts to promote sustainable development by integrating economic and environmental goals. Further context on market benefits is provided in clean renewable energy discussions that track growth trends and policy impacts across sectors worldwide.

Sustainable development will ensure the continued prosperity of Canadians while safeguarding our natural heritage for future generations. As deployment expands, insights into renewable power generation can help stakeholders benchmark performance and grid integration approaches in comparable jurisdictions.

Canadian Renewable Energy Tax Credits and Conservation Expenses

The early development phase of renewable energy and energy conservation projects typically involves certain intangible costs, such as feasibility and resource assessment studies. The CRCE category of expenditures was introduced in the 1996 Budget to allow investors Renewable Energy Tax Credits to fully write-off certain intangible costs associated with investments in renewable energy and energy conservation projects. CRCE is intended to promote the development of conservation and renewable energy projects in the same way that is currently done for investments in other types of resource activities.

Under CRCE, Renewable Energy Tax Credits allow eligible expenditures are 100 per cent deductible in the year they are incurred or can be carried forward indefinitely for deduction in later years. These expenditures can also be renounced to shareholders through a flow-through share agreement, providing the agreement was entered into before the expense was incurred. To be eligible, costs must be incurred after December 5, 1996. For the legislative basis of flow-through shares and CRCE expenditures, please refer to Sections 66 and 66.1 of the Income Tax Act and to Section 1219 of the Income Tax Regulations.

In parallel, understanding how markets value renewable energy credits can enhance financial models where environmental attributes are monetized alongside tax deductions.

Class 43.1 Accelerated Capital Cost Allowance

Class 43.1 provides an accelerated rate of write-off for certain capital expenditures on equipment that is designed to produce energy in a more efficient way or to produce energy from alternative renewable sources.

Class 43.1 allows taxpayers to deduct the cost of eligible equipment at up to 30 per cent per year, on a declining balance basis. Without this accelerated Renewable Energy Tax Credit write-off, many of these assets would be depreciated at annual rates of 4, or 20 percent (with the exception of expenses eligible for the pre-existing Class 34, which were deductible at an annual rate of up to 50 percent). In planning capital acquisitions, awareness of broader trends in alternative energy development can inform equipment selection and timing for making claims under this class.

What Types of Systems Qualify?

In general, the following types of systems qualify for CRCE Renewable Energy Tax Credit or Class 43.1 write-off:

Electricity Generation Systems

• certain cogeneration and specified-waste fuelled2 electrical generation systems
• small-scale hydro-electric installations (not exceeding 15 megawatts of average annual capacity)
• wind energy electrical generation systems
• enhanced combined cycle systems
• expansion engines
• photovoltaic electrical generation systems (three kilowatts capacity or larger)

Specified-waste fuels, both for electricity generation and heat production, are defined as municipal waste, wood waste, landfill gas or digester gas.

• geo-thermal electrical generation systems
• electrical generating systems using solution gas that would otherwise be flared during the production of crude oil

Thermal Energy Systems

• active solar systems (including groundsource heat pumps)
• heat recovery systems
• specified-waste fuelled heat production equipment

Note: Thermal energy systems qualify only if their primary purpose is to produce thermal energy for use directly in an industrial process.

Eligible Expenses
Intangible expenses eligible under CRCE Renewable Energy Tax Credits include:

• the cost of pre-feasibility and feasibility studies of suitable sites and potential markets for projects that will have equipment included in Class 43.1
• costs related to determining the extent, location and quality of energy resources
• negotiation and site approval costs
• certain site preparation costs that are not directly related to the installation of equipment
• service connection costs incurred to transmit power from the project to the electric utility

Test Wind Turbines

Costs related to the acquisition and installation of a test wind turbine – defined as “the first wind turbine installed at the site of a proposed wind farm, whose primary purpose is to test the energy production at the site” – are included in the CRCE category of expenses. In order to be eligible, a favourable prior opinion must be issued by the Minister of Natural Resources Canada for each installation.

Tax Incentives
The following types of costs are eligible for an accelerated rate under Class 43.1:

• machinery and equipment
• related soft costs for design, engineering and commissioning
• other services required to make the system operational

Many proponents also leverage alternative energy grants to complement accelerated allowances and reduce upfront cash requirements for project execution.

Depending on all the facts of a particular situation, the cost of modifications and improvements to existing qualifying equipment may also be eligible, provided that:

• the costs increase the capacity or performance of the equipment
• the resulting system continues to meet the conditions for qualification

The following are generally ineligible under Class 43.1:

• operating costs
• spare parts inventories
• foundations and structures, except those associated with qualifying small-scale hydro-electric, photovoltaic and wind energy conversion systems
• electrical distribution systems
• electrical transmission systems, except those associated with qualifying small-scale hydro-electric, photovoltaic and wind energy conversion systems
• used equipment, except if the equipment was included in Class 34 or 43.1 of the vendor, remains at the same site in Canada and is not more than five years old Generally, to be eligible for Class 43.1, an asset must be acquired after February 21, 1994, by a Canadian taxpayer for use in a business in Canada.

For more information on CRCE or Class 43.1, please order the guide entitled Class 43.1 Technical Guide and Technical Guide to Canadian Renewable and Conservation Expenses (CRCE) at a cost of $100 plus applicable taxes, available from the following address. A written prior opinion can be obtained by writing to:

Class 34/43.1 Secretariat
CANMET Energy Technology Centre
Natural Resources Canada
1 Haanel Drive, Bldg. 3
Nepean, ON K1A 1M1
Tel.: (613) 996-0890
Fax: (613) 995-7868

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• Renewable Energy Channel

Tidal energy is a renewable power source that harnesses ocean tides through the use of turbines and barrages. Utilizing predictable tidal cycles, it supports clean electricity generation, reduces dependence on fossil fuels, and strengthens sustainable energy systems.

What is tidal energy?

Tidal energy is the conversion of ocean tides into electricity using turbines, barrages, or tidal stream systems, offering a predictable and sustainable renewable resource.

✅ Harnesses predictable tidal cycles for renewable power

✅ Reduces reliance on fossil fuels and lowers emissions

✅ Supports clean, sustainable electricity generation

It is a renewable power harnessed from the rise and fall of the ocean's tides. The ocean's vast power is one of the most promising resources, capable of generating electricity to meet the needs of communities worldwide. With the growing demand for clean, sustainable sources, tide-generated power has been thrust into the spotlight as an effective and environmentally friendly option. Understanding tidal power highlights how Renewable Power Generation technologies are diversifying to create a more sustainable grid.

What is Tidal Energy? It is an ocean energy resource; tide-generated power is extracted from the natural ebb and flow of coastal tides. The key difference between tidal energy and other renewable sources, such as wind and solar power, lies in the predictability and reliability of the high tides. Additionally, the water in the ocean is approximately 800 times denser than air, making it a more concentrated and efficient power source compared to wind turbines. Governments worldwide are encouraging clean projects like tidal power through Renewable Energy Tax Credits, which lower the cost of adoption.

Tidal Barrage Systems for Renewable Power

Two primary methods of capturing tidal energy are tidal barrage and tidal stream generators. A tidal barrage is a large-scale engineering project that involves constructing a dam across a tidal estuary or bay. Then, as the water level changes during the high and low tidal barrage, water flows through turbines, generating electricity. The most notable tidal barrage projects include La Rance in France and the Sihwa Lake tide-generated Power Station in South Korea. 

Tidal Stream Generators and Ocean Turbines

Tidal stream generators, on the other hand, utilize underwater turbines positioned in tidal streams to harness the kinetic energy of the moving water. Like wind turbines, tide-generated turbines rotate as water flows over their blades, converting it into electricity. This technology is less intrusive to the environment and marine life than tidal barrage systems.

Advantages of Tidal Energy for Clean Electricity

There are numerous advantages to utilizing it as a renewable source. First, tidal energy is predictable, making planning for power generation and grid integration easier. Additionally, tide-generated power is environmentally friendly, as it produces no greenhouse gas emissions or air pollution during operation. This makes it a desirable option for reducing dependence on fossil fuels and combating climate change.

Disadvantages and Challenges of Tidal Power

However, it also has its disadvantages. The initial cost of constructing large-scale tidal power plants, particularly large-scale tidal barrage projects, can be substantial. This kind of generation is also limited to specific coastal locations with sufficient range and appropriate topography. Furthermore, concerns exist about the potential impact on marine life and coastal ecosystems, although research is ongoing to develop more sustainable and less disruptive technologies.

Tidal Energy vs Wind and Solar Power

Regarding efficiency, it is competitive with other renewable power sources, such as wind and solar power. In addition, the density of water makes tidal power generation more efficient in terms of power output per unit of installed capacity. However, the technology's scalability and geographic limitations make it challenging to deploy tidal energy globally. Tide-generated systems complement other clean technologies featured in our articles on Biomass Renewable Energy and Clean Renewable Energy.

Environmental Impact of Tidal Power Plants

The environmental impact is generally considered to be low, with minimal greenhouse gas emissions, air pollution, or waste production. However, localized effects on marine ecosystems and sediment transport may occur, depending on the type and scale of the project. Therefore, it is crucial to perform thorough environmental assessments and monitoring to minimize the potential negative effects of tide-generated power installations. To see how tidal power contributes to decarbonization efforts, visit our Renewable Electricity and Renewable Power Sources guides.

Global Examples of Tidal Power Stations

The best locations for generating tidal energy are areas with a high tidal range, strong tidal currents, and suitable coastal topography. Some of the world's most promising sites include the Bay of Fundy in Canada, the Bristol Channel in the United Kingdom, and the northwest coast of Australia. In addition, countries such as France, South Korea, and the UK are already home to some of the largest tide-generated power stations and continue to invest in this renewable power technology. As part of global Renewable Energy Projects, tide-generated power installations provide reliable baseload power alongside solar and wind.

Future of Tidal Energy in Renewable Systems

What is Tidal Energy? Tidal energy is a promising renewable resource with significant potential for generating clean, sustainable electricity. While there are challenges to overcome, such as high initial costs and site-specific limitations, ongoing research and technological advancements aim to make tide-generated electricity a more accessible and environmentally friendly option for the future. For a deeper comparison beyond 'What is Tidal Energy,' explore our article on 'What is Distributed Generation?' which shows how local systems, such as tidal plants, strengthen energy resilience.

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Distributed generation refers to the local production of electricity using renewable energy, microgrids, and small-scale systems. It enhances efficiency, minimizes transmission losses, and facilitates reliable and sustainable power distribution in modern electrical networks.

What is Distributed Generation? 

It involves the decentralized production of electricity near consumers, utilizing renewable energy sources, combined heat and power systems, and microgrid technologies.

✅ Provides local electricity generation near demand points

✅ Improves grid reliability, energy efficiency, and sustainability

✅ Reduces transmission losses and supports renewable integration

What is distributed generation? Distributed generation systems are transforming how communities generate electricity by shifting away from exclusive reliance on traditional centralized power plants. These systems often combine renewable sources with local energy solutions, and in some cases use natural gas for backup or combined heat and power applications. By operating closer to the point of use, distributed generation reduces transmission losses, supports energy efficiency, and decreases dependence on fossil fuels, helping to build a more sustainable and resilient power network.

Distributed Generation Training

How Distributed Generation Works

Distributed generation functions through on-site or near-site production of power. While centralized generation transmits electricity across hundreds of miles, DG creates it close to consumption, reducing energy losses and infrastructure needs. The process begins with various small-scale technologies, each designed to serve specific needs. Some systems connect directly to the larger utility grid, while others operate independently within microgrids. Energy storage plays a vital role, allowing surplus power to be stored and released during periods of peak demand, thereby improving energy resilience and grid balance.

Key technologies include:

• Solar photovoltaic (PV) panels, widely deployed in residential rooftops and utility microgrids, convert sunlight into electricity.

• Wind turbines, both small-scale and community-based, deliver renewable power directly to local users.

• Fuel cells generate clean, reliable electricity through chemical reactions, making them ideal for critical infrastructure.

• Combined heat and power (CHP) systems capture waste heat during electricity generation to improve total efficiency.

• Microgrids integrate multiple DERs and can disconnect (“island”) from the main grid during outages to supply continuous power.

• Energy storage systems, such as batteries, provide flexibility, backup supply, and peak demand management capabilities.

Benefits of Distributed Generation

The benefits of DG extend well beyond simple power supply. At its core, DG enhances the overall performance of electrical systems by placing power sources closer to demand, thereby reducing reliance on long-distance transmission and minimizing losses. It supports the transition to cleaner energy by enabling the integration of renewable sources, strengthens resilience by diversifying power sources, and reduces stress on centralized grids during peak demand. Communities, businesses, and utilities alike benefit from increased security, sustainability, and cost savings when they adopt DG.

DG delivers multiple advantages:

• Higher energy efficiency, as CHP systems and other technologies recover waste heat for practical use.

• Reduced transmission losses, since electricity does not need to travel across extensive networks.

• Grid reliability and resilience, with local systems ensuring power supply even when centralized networks fail.

• Renewable integration provides a pathway for solar, wind, and other sustainable technologies.

• Peak demand management helps balance the electricity supply during periods of high consumption.

• Energy independence is particularly important for remote or underserved communities that cannot rely on centralized grids.

Regulatory Standards and Policies

The adoption of DG depends heavily on regulatory frameworks that govern safety, interconnection, and compensation. Technical standards, such as IEEE 1547, define the rules for how distributed energy resources connect to the grid, addressing voltage regulation, protection coordination, and power quality. Without clear standards, widespread deployment would risk instability and safety issues.

Government policies also provide critical support. Net metering programs enable households and businesses to sell excess electricity back to the grid, making the adoption of renewable energy more affordable. Feed-in tariffs create financial incentives for producers by guaranteeing payment for electricity generated from renewable sources. Grid interconnection standards ensure that systems connect seamlessly without harming existing infrastructure. Together, these regulations provide structure, encourage investment, and shape the growth of distributed generation worldwide.

Challenges of Distributed Generation

While DG offers many advantages, it also introduces challenges that must be addressed for long-term success. The most obvious barrier is financial: new systems require significant investment in generation capacity, storage, and interconnection. Technical issues, such as managing voltage fluctuations, maintaining power quality, and integrating many small systems into a stable grid, also create complexity. As adoption grows, utilities must develop smarter monitoring and control systems to coordinate multiple inputs. Ultimately, regulatory uncertainty in certain regions can deter investment.

Key challenges include:

• High initial investment costs limit adoption, despite the potential for long-term savings.

• Grid management issues arise with the increasing number of decentralized resources, complicating system operations.

• Power quality and control concerns require advanced technologies to maintain stability.

• Regulatory hurdles, as inconsistent policies, can slow or prevent project development.

Real-World Examples

Distributed generation is already reshaping global energy systems:

• United States: California leads the way with extensive rooftop solar adoption, supported by net metering policies and community microgrids that supply critical facilities during power outages.

• Germany: Its feed-in tariff system has transformed the energy landscape by encouraging the integration of distributed solar PV and wind, making it a world leader in renewable energy adoption.

• Canada: Remote northern and Indigenous communities are turning to DG solutions, which combine solar panels, battery storage, and backup generators, to reduce their reliance on diesel and improve reliability.

• India: Solar microgrids are expanding electricity access to rural villages, providing sustainable power where centralized infrastructure is impractical.

These examples illustrate how DG provides environmental benefits, cost savings, and enhanced energy resilience across diverse regions.

Future Trends in Distributed Generation

The future of Distributed Generation lies in smarter, more integrated energy systems. As renewable energy continues to grow, distributed generation will play a central role in balancing demand and supply at the local level. New technologies, such as battery storage systems and smart inverters, are making grids more adaptable. Peer-to-peer energy trading platforms are emerging, allowing consumers to buy and sell electricity within communities. Virtual power plants (VPPs), which aggregate thousands of small resources into coordinated grid assets, will enhance efficiency and resilience. Looking further ahead, hydrogen fuel cells and hybrid renewable systems will expand the reach of DG into industrial and transportation sectors.

Emerging trends include:

• Battery storage for greater flexibility and backup.

• Smart inverters that maintain stability during variable renewable generation.

• Peer-to-peer trading, enabling community-level energy exchange.

• Virtual power plants (VPPs) that combine DERs into large, coordinated resources.

• Hydrogen technologies offer clean and scalable options for generating energy.

Frequently Asked Questions

What is the difference between distributed generation and dispersed generation?

Although often used interchangeably, dispersed generation usually refers to small-scale power produced in isolated locations away from the grid, while distributed generation emphasizes systems located close to consumers, often integrated with microgrids.

What is distributed generation, and what are the pros and cons?

Pros include increased efficiency, renewable energy integration, improved grid resilience, and reduced transmission losses. Cons involve high infrastructure costs, regulatory complexity, and grid management challenges.

What is the difference between distributed generation and a microgrid?

A microgrid is a self-contained energy network that can operate independently. Distributed generation refers to the small-scale power sources—such as solar panels or CHP systems—that may be part of a microgrid.

What are examples of distributed generation technologies?

Examples include solar PV, wind turbines, CHP systems, fuel cells, energy storage, and integrated microgrids.

What role do regulations play in distributed generation?

Standards like IEEE 1547, along with policies such as net metering and feed-in tariffs, govern the safe interconnection of Distributed Generation and provide financial incentives that support its wider adoption.

How can distributed generation improve grid resiliency?

By diversifying energy sources and enabling localized supply, DG ensures backup power for critical facilities during outages and reduces the impact of large-scale disruptions.

What is Distributed Generation? Distributed generation represents a shift from traditional centralized power plants to localized, flexible energy solutions. By integrating renewable resources, natural gas, and advanced technologies like microgrids and storage, DG improves efficiency, reduces reliance on fossil fuels, and enhances grid resilience. As policies, standards, and innovations continue to evolve, distributed generation will play an increasingly vital role in building a sustainable, reliable, and future-ready energy system.

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• Microgrids and Distributed Energy Resources

Renewable energy projects optimize power systems with grid integration, solar PV, wind turbines, battery storage, inverters, and power electronics, enhancing smart grid reliability, microgrids, transmission, and distribution through modeling, protection, and control engineering.

What Are Renewable Energy Projects?

Projects that design, integrate, and control solar, wind, and storage for reliable, efficient electric power systems.

✅ Grid integration studies: load flow, stability, and protection schemes.

✅ Power electronics and inverter control for MPPT and grid codes.

✅ SCADA, forecasting, and storage optimization in microgrids.

Renewable Energy Projects seem to have survived the first cycle of the world economic recession. In fact, late 2008 and all of 2009 seemed better than many economists had recently expected. After a slowdown in world investment activity at the end of 2008, sustainable energy projects enjoyed a rebound during the final three quarters of 2010. For readers seeking a concise overview, the concept of what renewable energy is underpins these investment trends today.

The result was total new investment in worldwide Renewable Energy Projects reached about $162 billion in 2009, down slightly from the revised target of $173 billion for 2008. This was still the second highest annual figure ever recorded and nearly four times the total investment level of 2004. This performance demonstrated that Renewable Energy Projects were certainly not a typical bubble created by the so-called "credit boom", but was rather an investment story that will continue to be important for years to come. Understanding the mix of renewable energy sources helps explain the durability of capital flows in this sector.

The visual underscores how renewable power markets can rebound quickly when financing conditions stabilize.

While many policy-makers have increased their focus on encouraging the growth of Renewable Energy Projects, (partly to stimulate job creation and and offset the forces of recession) projects received new support. From the financial crisis of autumn 2008 until the spring of 2010, the world's chief economies set aside about $188 billion of “green stimulus” programs for Renewable Energy Projects. And since that time, the money has started to be spent. The United States recently announced a large grant scheme to assist the financing of renewable energy projects, and other countries followed the example of Germany, Spain and other European countries by commencing feed-in tariff programs to encourage and stimulate investment in Renewable Energy Projects.. Such measures are pivotal as governments scale clean renewable energy deployment across sectors and regions worldwide.

The major development banks, led by Germany’s KfW and the European Investment Bank, also became important actors in helping Renewable Energy Projects to weather the storm and expand into new markets. However, Renewable Energy Projects have often to cope with a bumpy path.

Blended finance vehicles increasingly target diverse renewable power sources to spread risk and accelerate grid integration across emerging markets.

The story of 2009, however, was one of resilience for Renewable Energy Projects. While there were areas of weakness such as project development in the US and finance for biofuel plants, there was also a decisive shift in the balance of investment towards developing countries and particularly China. Renewable Energy Projects in China was the strongest feature of the year by far, although there were other areas of strength in the world in 2009 such as offshore wind investment in the North Sea and the financing of power storage and electric vehicle technology companies. There was also a marked improvement in the cost competitiveness of renewable power generation compared to fossil-fuel electricity generation. These shifts align with fundamentals described in renewable energy facts that clarify cost trends and technology learning curves.

New investment in Renewable Energy Projects in 2009 was $162 billion, down from a revised $173 billion in 2008. The 7% fall reflected the impact of the recession on investment in Europe and North America in particular, with renewable energy projects and companies finding it harder to access finance:

• China saw a surge in investment in Renewable Energy Projects. Out of $119 billion invested worldwide by the financial sector in clean energy companies and utility-scale projects, $33.7 billion took place in China, up 53% on 2008. Financial investment in Europe was down 10% at $43.7 billion, while that in Asia and Oceania, at $40.8 billion, exceeded that in the Americas, at $32.3 billion, for the first time.
• Clean energy share prices rose almost 40% in 2009, reversing around a third of the losses they experienced in 2008. The WilderHill New Energy Global Innovation Index, or NEX, which tracks the performance of 88 sustainable energy stocks worldwide nearly doubled to 248.68 from its low of 132.03 reached on 9 March 2009.
• Major economies began to spend some of the estimated $188 billion in Renewable Energy Projects they announced in the months after the collapse of Lehman Brothers in September 2008. However the wheels of administration take time to turn, and even at the end of 2009, only some 9% of the money had been spent. Larger proportions of the stimulus funds are likely to be spent in 2010 and 2011.
• Total investment in Renewable Energy Projects by venture capital funds was $2.7 billion in 2009, down 36% on 2008. VC players found it harder to raise new money, because of general investor caution and because exits were hard to achieve given the weakness of stock markets.

Amid these fluctuations, the long-term outlook for renewable electricity remains strong given policy support and improving economics.

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Biomass renewable energy converts organic feedstocks into electricity via gasification, biogas, and CHP systems, integrating with microgrids, power electronics, inverters, and grid-tied generators for reliable, low-carbon baseload and frequency support.

What Is Biomass Renewable Energy?

Energy from organic feedstocks converted to power via gasification, biogas, and CHP, integrated with grid electronics.

✅ High-efficiency CHP improves capacity factor and voltage stability.

✅ Power electronics, inverters, and protection enable grid-tie.

✅ Supports frequency control, reactive power, and microgrid resiliency.

Biomass Renewable Energy is an important source of energy for majority of the world’s population. The use of biomass renewable energy is expected to increase in the near future, with growth in population. In many under developed nations (most especially areas such as parts of Africa, conventional biomass renewable energy dominates national energy strategies, leading to negative impacts on human health and the environment. There are, however, opportunities for developing improved and modern biomass energy technologies, which offer substantial benefits in terms of enhanced quality of energy services and reduction in negative health and environmental impacts. For a concise overview of feedstocks, conversion technologies, and benefits, see this biomass energy overview to understand core concepts.

In addition, the sustainable harvesting of biomass renewable energy resources is essential for ensuring the continued availability of this important energy source particularly for the world’s poor.

Sustainable harvesting practices also align with broader categories of renewable energy sources that emphasize resource regeneration.

Biomass renewable energy plays a vital role in meeting local energy demand in many regions of the developing world. Biomass is a primary source of electrical energy for about two billion people in developing countries. Therefore, it's available to the world’s impoverished nations while providing a suitable energy for cooking and heating. Also, biomass energy-based industries are a chief source of economic development in terms of job creation in rural areas. Modern biomass renewable energy technologies are being widely used in many developing countries as well as in certain parts of the developed world. With proper energy management strategies, supported by appropriate environmental practices, modern biomass renewable energy projects can be a sustainable source of electric power production as well as providing liquid and gaseous fuels. Biomass is therefore not only a central alternative energy source but is probably an important future sustainable energy source. These outcomes contribute to the goals of clean renewable energy that balance access, affordability, and environmental performance.

Growing interest in biomass renewable energy is driven by the following facts among others:

• It can contribute to lessening poverty in developing countries;
• Biomass renewable energy meets power needs without expensive conversion equipment;
• It can deliver biomass renewable energy in all forms that countries need for electricity and heating (in all forms of liquid and gaseous fuels)
• It is carbon dioxide-neutral because as much biomass can be grown as burned
• Biomass renewable energy helps to restore unproductive and degraded lands.

For definitions, policy basics, and key technologies, this guide to renewable energy offers helpful background.

Available statistics indicate that the share of biomass renewable energy in the global energy consumption has remained roughly the same over the last 30 years. Biomass renewable energy accounted for an estimated 14% and 11% of the world’s final energy consumption in 2000 and 2001 respectively (IEA, 1998 and IEA, 2003). The International Energy Agency (IEA) estimates that at global level, the share of biomass in total final energy consumption is comparable to that of electricity (15%) and gas (16%). These figures parallel developments in renewable electricity that are influencing investment and grid planning.

Modern biomass renewable energy technologies have the potential to provide improved energy services based on available biomass resources and agricultural residues19. Widespread use of combined heat and power generation biomass renewable energy options in rural areas can address multiple social, economic and environmental issues that now constrain local development. The availability of low cost biomass power in rural areas could help provide cleaner, more efficient energy services to support local development, promote environmental protection, provide better domestic fuel sources and improve rural life. Bioenergy technologies based on sustainable biomass supply are considered "carbon neutral" and may lead to net carbon dioxide emission reduction if used to replace fossil fuels. For comparative emissions data and lifecycle insights, consult this overview on renewable energy facts to understand trade-offs.

In addition, modern biomass renewable energy technologies can contribute to better bio-waste management. For example, land-fill gas can assist urban waste management, while bagasse-based co-generation reduces the problem of safe disposal of bagasse at sugar plantations. Another advantage of modern biomass renewable energy is its job generation potential – a very important attraction for many developing countries faced with chronic levels of unemployment or under-employment. Existing studies indicate that, in comparison to other primary energy sources, the job generation potential of modern biomass is among the highest. For example, in Brazil, the annual production of 14 billion litres of ethanol from sugarcane is responsible for the creation of 462,000 direct and 1,386,000 indirect jobs in the country, corresponding to a rate of 263,000 annual jobs per MTOE generated. Collectively, these pathways situate biomass within broader renewable alternative energy strategies that enhance resilience and jobs.

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Renewable power drives grid decarbonization via solar PV, wind turbines, hydropower, energy storage, power electronics, and smart grid integration, optimizing reliability, efficiency, and demand response in modern electric power systems.

What Is Renewable Power?

Renewable power is electricity from sustainable sources, using power electronics and storage for grid integration.

✅ Power electronics: inverters, converters, MPPT control

✅ Grid integration: protection, stability, frequency regulation

✅ Energy storage: batteries, BMS, dispatch for peak shaving

Renewable power technology is developing rapidly around the world aided by range of economic support mechanisms. This paper reviews the various mechanisms, and explores the relative merits of technology push and market pull approaches. It compares the approaches adopted in the UK with those used elsewhere. For readers new to the topic, a clear overview of what is renewable energy helps frame the policy context being discussed here.

THE RENEWABLE CHALLENGE
Renewable power technologies are new entrants into the world's electricity generation systems. However, they face an uphill struggle against the well established dominant electricity generation power technologies coal and gas, plus nuclear. Given increasing concerns about climate change, governments around the world have tried to simulate the expansion of renewable power generation via a range of subsidies and other financial support systems. As policymakers weigh options, comparative lists of renewable energy sources illustrate how technology maturity and costs vary across the sector.

Underlying the approaches to the development of renewable power technologies that have been adopted around the world is a basic distinction between supply side "technology push" approaches and demand side "market pull" approaches. It was perhaps inevitable that technology push dominated initially, in the mid 1970s, as new technologies needed research and development (R&D) effort, with much of the funding coming from government in the form of grants to research teams. However, by the early 1980s, the emphasis shifted in most countries to a market pull approach. Evidence from markets that track renewable power sources shows how pull mechanisms can accelerate deployment once early R&D has de-risked the technologies.

MARKETS OR SUBSIDIES?
Renewable power technologies need subsidies to get established, but at some point they should be able to compete with traditional methods of generating electricity, without subsidy. Wind power has nearly reached that point, and some waste or biofuel combustion options have already passed it. So, for these attractive renewable power technologies, the energy market has achieved its primary goal, even though it has maybe not led to much overall installed capacity. In practice, sustained cost declines have followed broader adoption of clean renewable energy solutions in competitive procurement schemes.

However, there are new renewable power options which need continued support, such as wave and tidal power. With the large scale wave and tidal programs abandoned, and in the new liberalized electricity market, the emphasis being on smaller scale plants, the focus amongst the surviving research teams had been on smaller scale inshore and onshore wave system and on the more recent idea of extracting renewable power from tidal flows.>/p>

For emerging marine concepts, insights into alternative energy power provide useful parallels for scaling prototypes to commercial arrays.

Projects like this, which were at best at the demonstration stage and more usually at the R&D stage, are not suited to support under the NFFO or the RO, which are meant for 'near market' technologies. By contrast the REFIT approach has provided support for technologies such as photovoltaic solar which are still very expensive on the assumption that costs will come down later as the market for the technology was expanded by subsidised lift off. So far, as we have seen, the UK approach does not seem to have done enough to help much near market technology take off. It is even less suited to less developed technologies. This may be one reason why, despite having a very large renewable power potential, so much of the world lags behind North America in terms both of developing capacity now, and in terms of meeting targets for the future. International case studies of alternative energy solutions underline the importance of stable, long-term policy design for investor confidence.

The challenge facing the United States is particularly striking. Whereas Germany already gets 14 per cent of its electricity from renewable power sources, the United States gets only about 1 per cent of its electricity from wind, solar, and geothermal combined. But more than half the states have set ambitious goals for increasing the use of renewable power, and president-elect Barack Obama wants 10 per cent of the nation's electricity to come from renewable power sources by the end of his first term, rising to 25 per cent by 2025. Yet unlike Germany, which has begun planning for new transmission lines and passing new laws meant to accelerate their construction, the United States has no national effort under way to modernize its system. A failure to improve the nation's grid will be a significant burden for the development of new renewable power technologies. Grid modernization discussions often reference foundational definitions and metrics outlined in learn the facts guides that connect resource potential with transmission needs.

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