"World?s Most Powerful? Tidal Turbine Starts Pumping Green Electricity To Onshore Grid


tidal electricity

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O2 Tidal Turbine delivers tidal energy in Orkney, Scotland, supplying grid-connected renewable power via EMEC and enabling green hydrogen production, providing clean electricity with predictable generation from strong coastal currents.

 

Key Points

A 2 MW, grid-connected tidal device in Orkney that delivers clean power and enables EMEC green hydrogen production.

✅ 2 MW capacity; powers ~2,000 UK homes via EMEC grid

✅ Predictable renewable output from strong coastal currents

✅ Enables onshore electrolyzer to produce green hydrogen

 

“The world’s most powerful” tidal turbine has been hooked up to the onshore electricity grid in Orkney, a northerly archipelago in Scotland, and is ready to provide homes with clean, green electricity, even as a major UK offshore windfarm begins supplying power this week.

The tidal turbine, known as the O2, was developed by Scottish engineering firm Orbital Marine Power. On July 28, they announced O2 “commenced grid connected power generation” at the European Marine Energy Centre (EMEC) in Orkney, meaning it's all set up and providing energy to the local power grid, similar to another Scottish tidal project that recently powered nearly 4,000 homes.

The 74-meter-long (242-foot) turbine is said to be “the world’s most powerful” tidal turbine. It will lay in the waters off Orkney for the next 15 years with the capacity to meet the annual electricity demand of around 2,000 UK homes. The 2MW turbine is also set to power the EMEC’s land-based electrolyzer that will generate green hydrogen (hydrogen made without fossil fuels) that can also be used as a clean energy source, in a UK energy system that recently set a wind generation record for output.

“Our vision is that this project is the trigger to the harnessing of tidal stream resources around the world and, alongside investment in UK offshore wind, to play a role in tackling climate change whilst creating a new, low-carbon industrial sector,” Orbital CEO, Andrew Scott, said in a press release.

Tidal energy is harnessed by converting energy from the natural rise and fall of ocean tides and currents. The O2 turbine consists of two submerged blades with a 20-meter (65-foot) diameter attached to a turbine that will move with the shifting currents of Orkney’s coast to generate electricity. Electricity is then transferred from the turbine along the seabed via cables towards the local onshore electricity network, a setup also being used by a Nova Scotia tidal project to supply the grid today.


This method of harnessing energy is not just desirable because it doesn't release carbon emissions, but it’s more predictable than other renewable energy sources, such as solar or Scotland's wind farms that can be influenced by weather conditions. Tidal energy production is still in its infancy and there are relatively few large-scale tidal power plants in the world, but many argue that some parts of the world could potentially draw huge benefits from this innovative form of hydropower, especially coastal regions with strong currents such as the northern stretches of the UK and the Bay of Fundy in Atlantic Canada.

The largest tidal power operation in the world is the Sihwa Lake project on the west coast of South Korea, which harnesses enough power to support the domestic needs of a city with a population of 500,000 people. However, once fully operational, the MeyGen tidal power project in northern Scotland hopes to snatch its title.

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Nova Scotia EV Charging Infrastructure Faces Urgent Upgrade Needs

Nova Scotia EV charging infrastructure remains limited, with only 14 fast chargers across the province. As electric vehicle adoption grows, urgent upgrades are needed to support long-distance travel and public charging convenience.

 

Nova Scotia EV charging infrastructure

Nova Scotia EV charging infrastructure refers to the province’s public and private network of stations that power electric vehicles (EVs).

✅ Limited availability of fast-charging stations for long-distance travel

✅ Growing demand as EV adoption increases province-wide

✅ Key factor in reducing range anxiety and promoting clean transportation

 

Nova Scotia’s EV charging network is struggling to keep pace with a growing fleet of electric vehicles. As of today, only 14 public DC fast chargers are operational across the province, a significant shortfall for drivers navigating long distances. This creates not only logistical hurdles but also growing consumer hesitation — particularly as EV sales continue to surge across Canada.

In response, the Canadian government has announced a $1.1 million (US$0.88 million) investment into a new smart-charging pilot program. Led by Nova Scotia Power, this initiative will explore how electric vehicles can better integrate with the local grid using a centralized, utility-managed control system. Up to 200 participants are expected to join the program, which aims to test both smart charging and vehicle-to-grid (V2G) technologies.

These systems allow EVs to act as distributed energy storage, helping to manage electricity demand and improve renewable energy integration — a strategy already being tested in other jurisdictions. For example, Ontario’s charging network expansion has provided a model for scaling fast-charging accessibility. Similarly, British Columbia has recently accelerated its rollout of faster charging stations to support mass EV adoption.

The Nova Scotia pilot will assess local EV charging behaviors, including drivers’ willingness to participate in V2G services based on incentives, driving patterns, and access to clean power. “We know customers want clean, affordable, reliable energy for their homes and businesses,” says Dave Landrigan, VP Commercial at Nova Scotia Power. “Through our electric vehicle smart charging pilot, we will test these technologies to learn how they can benefit all customers, creating clean, smarter options without changing a person’s driving habits.”

The funding comes through Natural Resources Canada’s Electric Vehicle Infrastructure Demonstration program, which supports the development of cutting-edge charging and hydrogen refueling solutions across the country. To date, the federal government has invested over $600 million to support EV affordability and infrastructure deployment, with a particular focus on a coast-to-coast fast-charging network.

At the same time, other provinces are stepping up their leadership roles. In Québec, Hydro-Québec is expanding its EV ecosystem through a strategic partnership with Propulsion Québec, a key industry cluster for sustainable mobility. Their focus includes reliable public charging, clean grid integration, and stakeholder collaboration — all essential factors for scalable transportation electrification.

“In Québec, we are fortunate to be able to make transportation electrification possible by easily replacing gas imported from outside with our clean energy,” said France Lampron, Director – Transportation Electrification at Hydro-Québec. “To do this, we need to develop synergies between various stakeholders in the sustainable mobility sector.”

While Nova Scotia’s current fast-charging availability is limited, the province now has an opportunity to follow a similar trajectory. With funding in place, stakeholder alignment, and public interest growing, the expansion of Nova Scotia EV charging infrastructure could soon match the pace of rising EV demand. As governments and utilities nationwide focus on electrification, Nova Scotia’s pilot may lay the groundwork for a more connected, cleaner transportation future.

 

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UK leads G20 for share of electricity sourced from wind

UK Wind Power Leadership in 2020 highlights record renewable energy growth, G20-leading wind share, rapid coal phase-out, and rising solar integration, advancing decarbonization targets under the Paris Agreement and momentum ahead of COP26.

 

Key Points

The UK led the G20 in wind power share in 2020, displacing coal, expanding solar, and cutting power-sector emissions.

✅ G20-leading wind share; second for combined wind and solar

✅ Fastest coal decline among G20 from 2015 to 2020

✅ Emissions risk rising as post-pandemic demand returns

 

Nearly a quarter of the UK’s electricity came from wind turbines in 2020 – making the country the leader among the G20 for share of power sourced from the renewable energy, a new analysis finds.

The UK also moved away from coal power at a faster rate than any other G20 country from 2015 to 2020, according to the results.

And it ranked second in the G20, behind Germany, for the proportion of electricity sourced from both wind and solar in 2020, after first surpassing coal in 2016.

“It’s crazy how much wind power has grown in the UK and how much it has offset coal, and how it’s starting to eat at gas,” Dave Jones, Ember’s global lead analyst, told The Independent.

But it is important to bear in mind that “we’re only doing a great job by the standards of the rest of the world”, he added, noting that low-carbon generation stalled in 2019 in the UK.

Ember’s Global Electricity Review notes that the world’s power sector emissions were two per cent higher in 2020 than in 2015 – the year that countries agreed to slash their greenhouse gas pollution as part of the Paris Agreement.

Power generated from coal fell by a record amount from 2019 to 2020, the analysis finds. However, this decline was greatly facilitated by lockdowns introduced to stop the spread of Covid-19, as global electricity demand was temporarily stifled before rebounding, the analysts say.

Coal is the most polluting of the fossil fuels. The UK government hopes to convince all countries to stop building new coal-fired power stations at Cop26, a climate conference that is to be held in Glasgow later this year.

UN chief Antonio Guterres has also called for all countries to end their “deadly addiction to coal”.

At a summit held earlier this month, he described ending the use of coal in electricity generation as the “single most important step” to meeting the Paris Agreement’s goal of limiting global warming to well below 2C above pre-industrial levels by 2100.

“There is definitely a concern that, in the pandemic year of 2020, coal hasn’t fallen as fast as it needed to,” said Mr Jones, even as the UK set coal-free power records recently.

“There is concern that, once electricity demand returns, we won’t be seeing that decline in coal anymore.”

 

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B.C. Hydro predicts 'bottleneck' as electric-vehicle demand ramps-up

B.C. EV Bottleneck signals a post-pandemic demand surge for electric vehicles amid semiconductor and lithium-ion battery shortages, driving waitlists, record sales, rebates, charging infrastructure needs, and savings on fuel and maintenance across British Columbia.

 

Key Points

B.C. EV bottleneck is rising demand outpacing supply from chip and battery shortages, creating waitlists.

✅ 85% delayed EV purchase; demand rebounds with reopening.

✅ Supply chain limits: chips and lithium-ion batteries.

✅ Plan ahead: join waitlists, consider used EVs, claim rebates.

 

B.C. Hydro is warning of a post-pandemic “EV bottleneck” as it predicts pent-up demand and EV shortages will lead to record-breaking sales for electric vehicles in 2021.

A new survey by B.C. Hydro found 85 per cent of British Columbians put off buying an electric vehicle during the pandemic, but as the province reopens, the number of people on the road commuting to-and-from work and school is expected to rise 15 per cent compared with before the pandemic.

It found about two-thirds of British Columbians are considering buying an EV over the next five years, with 60 per cent saying they would go with an EV if they can get one sooner.

“The EV market is at a potential tipping point, as demand is on the rise and will likely continue to grow long-term, with one study projecting doubling power output to meet full road electrification,” said a report about the findings released Wednesday.

The demand for EVs is prompted by rising gas prices, environmental concerns and to save money on maintenance costs like oil changes and engine repairs, said the report. At the same time, a shortage of semiconductor chips and lithium ion batteries needed for auto production is squeezing supply.

For people wanting to make the switch to electric, B.C. Hydro recommended they plan ahead and get on several waiting lists and explore networks offering faster charging options. Used EVs are also a cheaper option.

B.C. Hydro said an electric vehicle can save 80 per cent in gas expenses over a year and about $100 a month in maintenance costs compared with a gas-powered vehicle. There are also provincial and federal rebates of up to $8,000 for EV purchases in B.C., and additional charger rebates can help with installation costs.

B.C. has the highest electric vehicle uptake in North America, with zero-emission vehicles making up almost 10 per cent of all car sales in the province in 2020 as the province expands EV charging to support growth — more than double the four per cent in 2018.

According to a report by University of B.C. business Prof. Werner Antweiler on the state of EV adoption in B.C., electric vehicles are still concentrated in urban areas like Metro Vancouver and the Capital Regional District on Vancouver Island where public charging stations are more readily available.

He said electric vehicle purchases are still hampered by limited choice and a lack of charging stations, especially for people who park on the street or in condo parkades, which would require permission from strata councils to install a charging station, though rebates for home and workplace charging can ease installation.

The online survey was conducted by market researcher Majid Khoury of 800 British Columbians from May 17-19. It has a margin of error of plus-or-minus 3.5 per cent, 19 times out of 20.

 

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UK sets new record for wind power generation

Britain Wind Generation Record underscores onshore and offshore wind momentum, as National Grid ESO reported 20.91 GW, boosting zero-carbon electricity, renewables share, and grid stability amid milder weather, falling gas prices, and net zero goals.

 

Key Points

The Britain wind generation record is 20.91 GW, set on 30 Dec, driven by onshore and offshore turbines.

✅ Set on 30 Dec 2022 with peak output of 20.91 GW.

✅ Zero-carbon sources hit 87.2% of grid supply.

✅ Driven by onshore and offshore wind; ESO reported stability.

 

Britain has set a new record for wind generation as power from onshore and offshore turbines helped boost clean energy supplies late last year.

National Grid’s electricity system operator (ESO), which handles Great Britain’s grid operations, said that a new record for wind generation was set on 30 December, when 20.91 gigawatts (GW) were produced by turbines.

This represented the third time Britain’s fleet of wind turbines set new generation records in 2022. In May, National Grid had to ask some turbines in the west of Scotland to shut down, as the network was unable to store such a large amount of electricity when a then record 19.9GW of power was produced – enough to boil 3.5m kettles.

The ESO said a new record was also set for the share of electricity on the grid coming from zero-carbon sources – renewables and nuclear – which supplied 87.2% of total power. These sources have accounted for about 55% to 59% of power over the past couple of years.

The surge in wind generation represents a remarkable reversal in fortunes as a cold snap that enveloped Britain and Europe quickly turned to milder weather.

Power prices had soared as the freezing weather forced Britons to increase their heating use, pushing up demand for energy despite high bills.

The cold weather came with a period of low wind, reducing the production of Britain’s windfarms to close to zero.

Emergency coal-fired power units at Drax in North Yorkshire were put on standby but ultimately not used, while gas-fired generation accounted for nearly 60% of the UK’s power output at times.

However, milder weather in the UK and Europe in recent days has led to a reduction in demand from consumers and a fall in wholesale gas prices. It has also reduced the risk of power cuts this winter, which National Grid had warned could be a possibility.

Wind generation is increasingly leading the power mix in Britain and is seen as a crucial part of Britain’s move towards net zero. The prime minister, Rishi Sunak, is expected to overturn a moratorium on new onshore wind projects with a consultation on the matter due to run until March.

 

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Canada set to hit 5 GW milestone

Canada Solar Capacity Outlook 2022-2050 projects 500 MW new PV in 2022 and 35 GW by 2050, driven by renewables policy, grid parity, NREL analysis, IEA-PVPS data, and competitive utility-scale photovoltaic costs.

 

Key Points

An evidence-based forecast of Canadian PV additions to 35 GW by 2050, reflecting policy, costs, and grid parity trends.

✅ 500 MW PV expected in 2022; cumulative capacity near 5 GW

✅ NREL outlook sees 35 GW by 2050 on cost competitiveness

✅ Policy shifts, ITCs, coal retirements accelerate solar uptake

 

Canada is set to install 500 MW of new solar in 2022, bringing its total capacity to about 5 GW, according to data from Canmet Energy, even as the Netherlands outpaces Canada in solar power generation. The country is expected to hit 35 GW of total solar capacity by 2050.

Canada’s cumulative solar capacity is set to hit 5 GW by the end of this year, according to figures from the federal government’s Canmet Energy lab. The country is expected to add around 500 MW of new solar capacity, from 944 MW last year, according to the International Energy Agency Photovoltaic Power Systems Programme (IEA-PVPS), which recently published a report on PV applications in Canada, even as solar demand lags in Canada.

“If we look at the recent averages, Canada has installed around 500 MW annually. I expect in 2022 it will be at least 500 MW,” said Yves Poissant, research manager at Canmet Energy. “Last year it was 944 MW, mainly because of a 465 MW centralized PV power plant installed in Alberta, where the Prairie Provinces are expected to lead national renewable growth.”

The US National Renewable Energy Laboratory (NREL) studied renewables integration and concluded that Canada’s cumulative solar capacity will increase sevenfold to 35 GW by 2050, driven by cost competitiveness and that zero-emissions by 2035 is achievable according to complementary studies.

Canada now produces 80% of its electricity from power sources other than oil. Hydroelectricity leads the mix at 60%, followed by nuclear at 15%, wind at 7%, gas and coal at 7%, and PV at just 1%. While the government aims to increase the share of green electricity to 90% by 2030 and 100% by 2050, zero-emission electricity by 2035 is considered practical and profitable, yet it has not set any specific goals for PV. Each Canadian province and territory is left to determine its own targets.

“Without comprehensive pan-Canadian policy framework with annual capacity targets, PV installation in the coming years will likely continue to be highly variable across the provinces and territories, especially after Ontario scrapped a clean energy program, which scaled back growth projections. Further policies mechanisms are needed to allow PV to reach its full potential,” the IEA-PVPS said.

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Canada recently introduced investment tax credits for renewables to compete with the United States, but it is still far from being a solar powerhouse, with some experts calling it a solar laggard today. That said, the landscape has started to change in the past five years.

“Some laws have been put in place to retire coal plants by 2025. That led to new opportunities to install capacity,” said Poissant. “We expect the newly installed capacity will consist mostly of wind, but also solar.”

The cost of solar has become more competitive and the residential sector is now close to grid parity, according to Poissant. For utility-scale projects, old hydroelectric dams are still considerably cheaper than solar, but newly built installations are now more expensive than solar.

“Starting 2030, solar PV will be cost competitive compared to wind,” Poissant said.

 

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Scrapping coal-fired electricity costly, ineffective, says report

Canada Coal Phase-Out Costs highlight Fraser Institute findings on renewable energy, wind and solar integration, grid reliability, natural gas backup, GDP impacts, greenhouse gas emissions reductions, nuclear alternatives, and transmission upgrades across provincial electricity systems.

 

Key Points

Costs to replace coal with renewables, impacting taxpayers and ratepayers while ensuring grid reliability.

✅ Fraser Institute estimates $16.8B-$33.7B annually for renewables.

✅ Emissions cut from coal phase-out estimated at only 7.4% nationally.

✅ Natural gas backup and grid upgrades drive major cost increases.

 

Replacing coal-fired electricity with renewable energy will cost Canadian taxpayers and hydro ratepayers up to $33.7 billion annually, with only minor reductions in global greenhouse gas emissions linked to climate change, according to a new study by the Fraser Institute.

The report, Canadian Climate Policy and its Implications for Electricity Grids by University of Victoria economics professor G. Cornelis van Kooten, said replacing coal-fired electricity with wind and solar power would only cut Canada’s annual emissions by 7.4%,

Prime Minister Justin Trudeau’s has promised a reduction of 40%-45% compared to Canada’s 2005 emissions by 2030, and progress toward the 2035 clean electricity goals remains uncertain.

The study says emission cuts would be relatively small because coal accounted for only 9.2% of Canada’s electricity generation in 2017. (According to Natural Resources Canada, that number is lower today at 7.4%).

In 2019, the last year for which federal data are available, Canada’s electricity sector generated 8.4% of emissions nationally — 61.1 million tonnes out of 730 million tonnes.

“Despite what advocates, claim, renewable power — including wind and solar — isn’t free and, as Europe's power crisis lessons suggest, comes with only modest benefits to the environment,” van Kooten said.

“Policy makers should be realistic about the costs of reducing greenhouse gas emissions in Canada, which accounts for less than 2% of emissions worldwide.”

The report says the increased costs of operating the electricity grid across Canada — between $16.8 billion and $33.7 billion annually or 1% to 2% of Canada’s annual GDP — would result from having to retain natural gas, consistent with net-zero regulations allowing some natural gas in limited cases, as a backup to intermittent wind and solar power, which cannot provide baseload power to the electricity grid on demand.

Van Kooten said his cost estimates are conservative because his study “could not account for scenarios where the scale of intermittency turned out worse than indicated in our dataset … the costs associated with the value of land in other alternative uses, the need for added transmission lines, as analyses of greening Ontario's grid costs indicate, environmental and human health costs and the life-cycle costs of using intermittent renewable sources of energy, including costs related to the disposal of hazardous wastes from solar panels and wind turbines.”

If nuclear power was used to replace coal-fired electricity, the study says, costs would drop by half — $8.3 billion to $16.7 billion annually — but that’s unrealistic because of the time it takes to build nuclear plants and public opposition to them.

The study says to achieve the federal government’s target of reducing emissions to 40% to 45% below 2005 levels by 2030 and net-zero emissions by 2050, would require building 30 nuclear power plants before 2030, highlighting Canada’s looming power problem as described by analysts — meaning one plant of 1,000-megawatt capacity coming online every four months between now and 2030.

Alternatively, it would take 28,340 wind turbines, each with 2.5-megawatts capacity, or 1,050 turbines being built every four months, plus the costs of upgrading transmission infrastructure.

Van Kooten said he based his calculations on Alberta, which generates 39.8% of its electricity from coal and the cost of Ontario eliminating coal-fired electricity, even as Ontario electricity getting dirtier in coming years, which generated 25% of its electricity, between 2003 and 2014, replacing it with a combination of natural gas, nuclear and wind and solar power.

According to Natural Resources Canada, Nova Scotia generates 49.9% of its electricity from coal, Saskatchewan 42.9%, and New Brunswick 17.2%.

In 2018, the Trudeau government announced plans to phase-out traditional coal-fired electricity by 2030, though the Stop the Shock campaign seeks to bring back coal power in some regions. 

Canada and the U.K. created the “Powering Past Coal Alliance” in 2017, aimed at getting other countries to phase out the use of coal to generate electricity.

 

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