Duke Energy to build 400 mini solar power plants

By American Recycler


CSA Z463 Electrical Maintenance

Our customized live online or in‑person group training can be delivered to your staff at your location.

  • Live Online
  • 6 hours Instructor-led
  • Group Training Available
Regular Price:
$249
Coupon Price:
$199
Reserve Your Seat Today
Duke Energy will build between 100 and 400 electricity-generating mini solar power plants throughout North Carolina over the next two years in one of the first large-scale initiatives of its kind in the United States according to their CEO, Jim Rogers.

“Solar and wind are both going to be key parts of our strategy going forward,” Rogers told reporters following the company’s annual meeting.

The North Carolina Utilities Commission issued a decision allowing Duke Energy to proceed with its $50 million proposal to install solar panels on the roofs and grounds of homes, schools, office buildings, shopping malls, warehouses and industrial plants, starting later this year.

Collectively, the solar sites will generate enough electricity to power 1,300 homes.

The electricity will flow directly from the solar sites to the electrical grid that serves all customers.

Duke EnergyÂ’s solar initiative will be among the nationÂ’s first and largest demonstrations of distributed generation, in which electricity is produced at numerous micro generating sites rather than at a large, centralized, traditional power plant.

Duke Energy will own and maintain the solar panels during their expected 25-year lifespan. The company also will own the electricity generated.

It will pay a rental fee to property owners who host the panels for use of their roofs or land, based on the size of the installation and amount of electricity generated at any given site.

Related News

Ontario Poised to Miss 2030 Emissions Target

Ontario Poised to Miss 2030 Emissions Target highlights how rising greenhouse gas emissions from electricity generation and natural gas power plants threaten Ontario’s climate goals, environmental sustainability, and clean energy transition efforts amid growing economic and policy challenges.

 

Why is Ontario Poised to Miss 2030 Emissions Target?

Ontario Poised to Miss 2030 Emissions Target examines the province’s setback in meeting climate goals due to higher power-sector emissions and shifting energy policies.

✅ Rising greenhouse gas emissions from gas-fired electricity generation

✅ Climate policy uncertainty and missed environmental targets

✅ Balancing clean energy transition with economic pressures

Ontario’s path toward meeting its 2030 greenhouse gas emissions target has taken a sharp turn for the worse, according to internal government documents obtained by Global News. The province, once on track to surpass its reduction goals, is now projected to miss them—largely due to rising emissions from electricity generation, even as the IEA net-zero electricity report highlights rising demand nationwide.

In October 2024, the Ford government’s internal analysis indicated that Ontario was on track to reduce emissions by 28 percent below 2005 levels by 2030, effectively exceeding its target. But a subsequent update in January 2025 revealed a grim reversal. The new forecast showed an increase of about eight megatonnes (Mt) of emissions compared to the previous model, with most of the rise attributed to the province’s energy policies.

“This forecast is about 8 Mt higher than the October 2024 forecast, mainly due to higher electricity sector emissions that reflect the latest ENERGY/IESO energy planning and assumptions,” the internal document stated.

While the analysis did not specify which policy shifts triggered the change, experts point to Ontario’s growing reliance on natural gas. The use of gas-fired power plants has surged to fill temporary gaps created by nuclear refurbishment projects and other grid constraints, even as renewable energy’s role grows. In fact, natural gas generation in early 2025 reached its highest level since 2012.

The internal report cited “changing electricity generation,” nuclear power refurbishment, and “policy uncertainty” as major risks to achieving the province’s climate goals. But the situation may be even worse than the government’s updated forecast suggests.

On Wednesday, Ontario’s auditor general warned that the January projections were overly optimistic. The watchdog’s new report concluded the province could fall even further behind its 2030 emissions target, noting that reductions had likely been overestimated in several sectors, including transportation—such as electric vehicle sales—and waste management. “An even wider margin” of missed goals was now expected, the auditor said.

Environment Minister Todd McCarthy defended the government’s position, arguing that climate goals must be balanced against economic realities. “We cannot put families’ financial, household budgets at risk by going off in a direction that’s not achievable,” McCarthy said.

The minister declined to commit to new emissions targets beyond 2030—or even to confirm that the existing goals would be met—but insisted efforts were ongoing. “We are continuing to meet our commitment to at least try to meet our commitment for the 2030 target,” he told reporters. “But targets are not outcomes. We believe in achievable outcomes, not unrealistic objectives.”

Environmental advocates warn that Ontario’s reliance on fossil-fuel generation could lock the province into higher emissions for years, undermining national efforts to decarbonize Canada’s electricity grid. With cleaning up Canada’s electricity expected to play a central role in both industrial growth and climate action, the province’s backslide represents a significant setback for Canada’s overall emissions strategy.

Other provinces face similar challenges; for example, B.C. is projected to miss its 2050 targets by a wide margin.

As Ontario weighs its next steps, the tension between energy security, affordability, and environmental responsibility continues to define the province’s path toward a lower-carbon future and Canada’s 2050 net-zero target over the long term.

 

Related Articles

 

View more

Zapping elderly brains with electricity improves short-term memory — for almost an hour

Transcranial electrical stimulation synchronizes brain waves to bolster working memory, aligning neural oscillations across the prefrontal and temporal cortex. This noninvasive brain stimulation may counter cognitive aging by restoring network coupling and improving short-term recall.

 

Key Points

Transcranial electrical stimulation applies scalp currents to synchronize brain waves, briefly enhancing working memory.

✅ Synchronizes prefrontal-temporal networks to restore coupling

✅ Noninvasive tES/tACS protocols show rapid, reversible gains

✅ Effects lasted under an hour; durability remains to be tested

 

To read this sentence, you hold the words in your mind for a few seconds until you reach the period. As you do, neurons in your brain fire in coordinated bursts, generating electrical waves that let you hold information for as long as it is needed, much as novel devices can generate electricity from falling snow under specific conditions. But as we age, these brain waves start to get out of sync, causing short-term memory to falter. A new study finds that jolting specific brain areas with a periodic burst of electricity might reverse the deficit—temporarily, at least.

The work makes “a strong case” for the idea that out-of-sync brain waves in specific regions can drive cognitive aging, says Vincent Clark, a neuroscientist at the University of New Mexico in Albuquerque, who was not involved in the research. He adds that the brain stimulation approach in the study may result in a new electrical therapy for age-related deficits in working memory.

Working memory is “the sketchpad of the mind,” allowing us to hold information in our minds over a period of seconds. This short-term memory is critical to accomplishing everyday tasks such as planning and counting, says Robert Reinhart, a neuroscientist at Boston University who led the study. Scientists think that when we use this type of memory, millions of neurons in different brain areas communicate through coupled bursts of activity, a form of electrical conduction that coordinates timing across networks. “Cells that fire together, wire together,” Reinhart says.

But despite its critical role, working memory is a fragile cognitive resource that declines with age, Reinhart says. Previous studies had suggested that reduced working-memory performance in the elderly is linked to uncoupled activity in different brain areas. So Reinhart and his team set out to test whether recoupling brain waves in older adults could boost the brain’s ability to temporarily store information, a systems-level coordination challenge akin to efforts to use AI for energy savings on modern power grids.

To do so, the researchers used jolts of weak electrical current to synchronize waves in the prefrontal and temporal cortex—two brain areas critical for cognition, a targeted approach not unlike how grids use batteries to stabilize power during strain—and applied the current to the scalps of 42 healthy people in their 60s and 70s who showed no signs of decline in mental ability. Before their brains were zapped, participants looked at a series of images: an everyday object, followed briefly by a blank screen, and then either an identical or a modified version of the same object. The goal was to spot whether the two images were different.

Then the participants took the test again, while their brains were stimulated with a current. After about 25 minutes of applying electricity, participants were on average more accurate at identifying changes in the images than they were before the stimulation. Following stimulation, their performance in the test was indistinguishable from that of a group of 42 people in their 20s. And the waves in the prefrontal and temporal cortex, which had previously been out of sync in most of the participants, started to fire in sync, the researchers report today in Nature Neuroscience, a synchronization imperative reminiscent of safeguards that prevent power blackouts on threatened grids. No such effects occurred in a second group of older people who received jolts of current that didn’t synchronize waves in the prefrontal and temporal cortex.

By using bursts of current to knock brain waves out of sync, the researchers also modulated the brain chatter in healthy people in their 20s, making them slower and less accurate at spotting differences in the image test.

“This is a very nice and clear demonstration of how functional connections underlie memory in younger adults and how alterations … can lead to memory reductions in older adults,” says Cheryl Grady, a cognitive neuroscientist at the Rotman Research Institute at Baycrest in Toronto, Canada. It’s also the first time that transcranial stimulation has been shown to restore working memory in older people, says Michael O’Sullivan, a neuroscientist at the University of Queensland in Brisbane, Australia, though electricity in medicine extends far beyond neurostimulation.

But whether brain zapping could turbocharge the cognitive abilities of seniors or help improve the memories of people with diseases like Alzheimer’s is still unclear: In the study, the positive effects on working memory lasted for just under an hour—though Reinhart says that’s as far as they recorded in the experiment. The team didn’t see the improvements decline toward the end, so he suspects that the cognitive boost may last for longer. Still, researchers say much more work has to be done to better understand how the stimulation works.

Clark is optimistic. “No pill yet developed can produce these sorts of effects safely and reliably,” he says. “Helping people is the ultimate goal of all of our research, and it’s encouraging to see that progress is being made.”

 

Related News

View more

Solar Becomes #3 Renewable Electricity Source In USA

U.S. Solar Generation 2017 surpassed biomass, delivering 77 million MWh versus 64 million MWh, trailing only hydro and wind; driven by PV expansion, capacity additions, and utility-scale and small-scale growth, per EIA.

 

Key Points

It was the year U.S. solar electricity exceeded biomass, hitting 77 million MWh and trailing only hydro and wind.

✅ Solar: 77 million MWh; Biomass: 64 million MWh (2017, EIA)

✅ PV expansion; late-year capacity additions dampen annual generation

✅ Hydro: 300 and wind: 254 million MWh; solar thermal ~3 million MWh

 

Electricity generation from solar resources in the United States reached 77 million megawatthours (MWh) in 2017, surpassing for the first time annual generation from biomass resources, which generated 64 million MWh in 2017. Among renewable sources, only hydro and wind generated more electricity in 2017, at 300 million MWh and 254 million MWh, respectively. Biomass generating capacity has remained relatively unchanged in recent years, while solar generating capacity has consistently grown.

Annual growth in solar generation often lags annual capacity additions because generating capacity tends to be added late in the year. For example, in 2016, 29% of total utility-scale solar generating capacity additions occurred in December, leaving few days for an installed project to contribute to total annual generation despite being counted in annual generating capacity additions. In 2017, December solar additions accounted for 21% of the annual total. Overall, solar technologies operate at lower annual capacity factors and experience more seasonal variation than biomass technologies.

Biomass electricity generation comes from multiple fuel sources, such as wood solids (68% of total biomass electricity generation in 2017), landfill gas (17%), municipal solid waste (11%), and other biogenic and nonbiogenic materials (4%).These shares of biomass generation have remained relatively constant in recent years, even as renewables' rise in 2020 across the grid.

Solar can be divided into three types: solar thermal, which converts sunlight to steam to produce power; large-scale solar photovoltaic (PV), which uses PV cells to directly produce electricity from sunlight; and small-scale solar, which are PV installations of 1 megawatt or smaller. Generation from solar thermal sources has remained relatively flat in recent years, at about 3 million MWh, even as renewables surpassed coal in 2022 nationwide. The most recent addition of solar thermal capacity was the Crescent Dunes Solar Energy plant installed in Nevada in 2015, and currently no solar thermal generators are under construction in the United States.

Solar photovoltaic systems, however, have consistently grown in recent years, as indicated by 2022 U.S. solar growth metrics across the sector. In 2014, large-scale solar PV systems generated 15 million MWh, and small-scale PV systems generated 11 million MWh. By 2017, annual electricity from those sources had increased to 50 million MWh and 24 million MWh, respectively, with projections that solar could reach 20% by 2050 in the U.S. mix. By the end of 2018, EIA expects an additional 5,067 MW of large-scale PV to come online, according to EIA’s Preliminary Monthly Electric Generator Inventory, with solar and storage momentum expected to accelerate. Information about planned small-scale PV systems (one megawatt and below) is not collected in that survey.

 

Related News

View more

Reconciliation and a Clean Electricity Standard

Clean Electricity Standard (CES) sets utility emissions targets, uses tradable credits, and advances decarbonization via technology-agnostic benchmarks, carbon capture, renewable portfolio standards, upstream methane accounting, and cap-and-trade alternatives in reconciliation policy.

 

Key Points

CES sets utility emissions targets using tradable credits and benchmarks to drive power-sector decarbonization.

✅ Annual clean energy targets phased to 2050

✅ Tradable credits for compliance across utilities

✅ Includes upstream methane and lifecycle emissions

 

The Biden Administration and Democratic members of Congress have supported including a clean electricity standard (CES) in the upcoming reconciliation bill. A CES is an alternative to pricing carbon dioxide through a tax or cap-and-trade program and focuses on reducing greenhouse gas emissions produced during electricity generation by establishing targets, while early assessments show mixed results so far. In principle, it is a technology-agnostic approach. In practice, however, it pushes particular technologies out of the market.

The details of the CES are still being developed, but recent legislation may provide insight into how the CES could operate. In May, Senator Tina Smith and Representative Ben Ray Luján introduced the Clean Energy Standard Act of 2019 (CESA), while Minnesota's 100% carbon-free mandate offers a state-level parallel, and in January 2020, the House Energy and Commerce Committee released a discussion draft of the Climate Leadership and Environmental Action for our Nation’s (CLEAN) Future Act. Both bills increase the clean energy target annually until 2050 in order to phase out emissions. Both bills also create a credit system where clean sources of electricity as determined by a benchmark, carbon dioxide emitted per kilowatt-hour, receive credits. These credits may be transferred, sold, and auctioned so utilities that fail to meet targets can procure credits from others, as large energy customers push to accelerate clean energy globally.

The bills’ benchmarks vary, and while the CLEAN Future Act allows natural gas-fired generators to receive partial credits, CESA does not. Under both bills, these generators would be expected to install carbon capture technology to continue meeting increasing targets for clean electricity generation. Both bills go beyond considering the emissions resulting from generation and include upstream emissions for natural gas-fired generators. Natural gas, a greenhouse gas, that is leaked upstream of a generator during transportation is to be included among its emissions. The CLEAN Future Act also calls for newly constructed hydropower generators to account for the emissions associated with the facility’s construction despite producing clean electricity. These additional provisions demonstrate not only the CES’s inability to fully address the issue of emissions but also the slippery slope of expanding the program to include other markets, echoing cost and reliability concerns as California exports its energy policies across the West.

A majority of states have adopted clean energy, electricity, or renewable portfolio standards, with some considering revamping electricity rates to clean the grid, leaving legislators with plenty of examples to consider. As they weigh their options, legislators should consider if they are effectively addressing the problem at hand, economy-wide emissions reductions, and at what cost, drawing on examples like New Mexico's 100% clean electricity bill to inform trade-offs.

 

 

Related News

View more

Nigeria's Electricity Crisis

Nigeria Electricity Crisis undermines energy access as aging grid, limited generation, and transmission losses cause power outages, raising costs for businesses and public services; renewables, microgrids, and investment offer resilient, inclusive solutions.

 

Key Points

A nationwide power gap from weak infrastructure, low generation, and grid losses that disrupt services and growth.

✅ Aging grid and underinvestment drive frequent power outages

✅ Businesses face higher costs, lost productivity, weak competitiveness

✅ Renewables, microgrids, and regulatory reform can expand access

 

In Nigeria, millions of residents face persistent challenges with access to reliable electricity, a crisis that has profound implications for businesses, public services, and overall socio-economic development. This article explores the root causes of Nigeria's electricity deficit, drawing on 2021 electricity lessons to inform analysis, its impact on various sectors, and potential solutions to alleviate this pressing issue.

Challenges with Electricity Access

The issue of inadequate electricity access in Nigeria is multifaceted. The country's electricity generation capacity falls short of demand due to aging infrastructure, inadequate maintenance, and insufficient investment in power generation and distribution, a dynamic echoed when green energy supply constraints emerge elsewhere as well. As a result, many Nigerians, particularly in rural and underserved urban areas, experience frequent power outages or have limited access to electricity altogether.

Impact on Businesses

The unreliable electricity supply poses significant challenges to businesses across Nigeria. Manufacturing industries, small enterprises, and commercial establishments rely heavily on electricity to operate machinery, maintain refrigeration for perishable goods, and power essential services. Persistent power outages disrupt production schedules, increase operational costs, and, as grids prepare for new loads from electric vehicle adoption worldwide, hinder business growth and competitiveness in both domestic and international markets.

Public Services Strain

Public services, including healthcare facilities, schools, and government offices, also grapple with the consequences of Nigeria's electricity crisis. Hospitals rely on electricity to power life-saving medical equipment, maintain proper sanitation, and ensure patient comfort. Educational institutions require electricity for lighting, technological resources, and administrative functions. Without reliable power, the delivery of essential public services is compromised, impacting the quality of education, healthcare outcomes, and overall public welfare.

Socio-economic Impact

The electricity deficit in Nigeria exacerbates socio-economic disparities and hampers poverty alleviation efforts, even as debates continue over whether access alone reduces poverty in every context. Lack of access to electricity limits economic opportunities, stifles entrepreneurship, and perpetuates income inequality. Rural communities, where access to electricity is particularly limited, face greater challenges in accessing educational resources, healthcare services, and economic opportunities compared to urban counterparts.

Government Initiatives and Challenges

The Nigerian government has implemented various initiatives to address the electricity crisis, including privatization of the power sector, investment in renewable energy projects, and regulatory reforms aimed at improving efficiency and accountability, while examples like India's village electrification illustrate rapid expansion potential too. However, progress has been slow, and challenges such as corruption, bureaucratic inefficiencies, and inadequate funding continue to impede efforts to expand electricity access nationwide.

Community Resilience and Adaptation

Despite these challenges, communities and businesses in Nigeria demonstrate resilience and adaptability in navigating the electricity crisis. Some businesses invest in alternative power sources such as generators, solar panels, or hybrid systems to mitigate the impact of power outages, while utilities weigh shifts signaled by EVs' impact on utilities for future planning. Community-led initiatives, including local cooperatives and microgrids, provide decentralized electricity solutions in underserved areas, promoting self-sufficiency and resilience.

Path Forward

Addressing Nigeria's electricity crisis requires a concerted effort from government, private sector stakeholders, and international partners, informed by UK grid transformation experience as well. Key priorities include increasing investment in power infrastructure, enhancing regulatory frameworks to attract private sector participation, and promoting renewable energy deployment. Improving energy efficiency, reducing transmission losses, and expanding electricity access to underserved communities are critical steps towards achieving sustainable development goals and improving quality of life for all Nigerians.

Conclusion

The electricity crisis in Nigeria poses significant challenges to businesses, public services, and socio-economic development. Addressing these challenges requires comprehensive strategies that prioritize infrastructure investment, regulatory reform, and community empowerment. By working together to expand electricity access and promote sustainable energy solutions, Nigeria can unlock its full economic potential, improve living standards, and create opportunities for prosperity and growth across the country.

 

Related News

View more

Rooftop Solar Grids

Rooftop solar grids transform urban infrastructure with distributed generation, photovoltaic panels, smart grid integration and energy storage, cutting greenhouse gas emissions, lowering utility costs, enabling net metering and community solar for low-carbon energy systems.

 

Key Points

Rooftop solar grids are PV systems on buildings that generate power, cut emissions, and enable smart grid integration.

✅ Lowers utility bills via net metering and demand offset

✅ Reduces greenhouse gases and urban air pollution

✅ Enables resiliency with storage, smart inverters, and microgrids

 

As urban areas expand and the climate crisis intensifies, cities are seeking innovative ways to integrate renewable energy sources into their infrastructure. One such solution gaining traction is the installation of rooftop solar grids. A recent CBC News article highlights the significant impact of these solar systems on urban environments, showcasing their benefits and the challenges they present.

Harnessing Unused Space for Sustainable Energy

Rooftop solar panels are revolutionizing how cities approach energy consumption and environmental sustainability. By utilizing the often-overlooked space on rooftops, these systems provide a practical solution for generating renewable energy in densely populated areas. The CBC article emphasizes that this approach not only makes efficient use of available space but also contributes to reducing a city's reliance on non-renewable energy sources.

The ability to generate clean energy directly from buildings helps decrease greenhouse gas emissions and, as scientists work to improve solar and wind power, promotes a shift towards a more sustainable energy model. Solar panels absorb sunlight and convert it into electricity, reducing the need for fossil fuels and lowering overall carbon footprints. This transition is crucial as cities grapple with rising temperatures and air pollution.

Economic and Environmental Advantages

The economic benefits of rooftop solar grids are considerable. For homeowners and businesses, installing solar panels can lead to substantial savings on electricity bills. The initial investment in solar technology is often balanced by long-term energy savings and financial incentives, such as tax credits or rebates, and evidence that solar is cheaper than grid electricity in Chinese cities further illustrates the trend toward affordability. According to the CBC report, these financial benefits make solar energy a compelling option for many urban residents and enterprises.

Environmentally, the advantages are equally compelling. Solar energy is a renewable and clean resource, and increasing the number of rooftop solar installations can play a pivotal role in meeting local and national renewable energy targets, as illustrated when New York met its solar goals early in a recent milestone. The reduction in greenhouse gas emissions from fossil fuel energy sources directly contributes to mitigating climate change and improving air quality.

Challenges in Widespread Adoption

Despite the clear benefits, the adoption of rooftop solar grids is not without its challenges. One of the primary hurdles is the upfront cost of installation. While prices for solar panels have decreased over time, the initial financial outlay remains a barrier for some property owners, and regions like Alberta have faced solar expansion challenges that highlight these constraints. Additionally, the effectiveness of solar panels can vary based on factors such as geographic location, roof orientation, and local weather patterns.

The CBC article also highlights the importance of supportive infrastructure and policies for the success of rooftop solar grids. Cities need to invest in modernizing their energy grids to accommodate the influx of solar-generated electricity, and, in the U.S., record clean energy purchases by Southeast cities have signaled growing institutional demand. Furthermore, policies and regulations must support solar adoption, including issues related to net metering, which allows solar panel owners to sell excess energy back to the grid.

Innovative Solutions and Future Prospects

The future of rooftop solar grids looks promising, thanks to ongoing technological advancements. Innovations in photovoltaic cells and energy storage solutions are expected to enhance the efficiency and affordability of solar systems. The development of smart grid technology and advanced energy management systems, including peer-to-peer energy sharing, will also play a critical role in integrating solar power into urban infrastructures.

The CBC report also mentions the rise of community solar projects as a significant development. These projects allow multiple households or businesses to share a single solar installation, making solar energy more accessible to those who may not have suitable rooftops for solar panels. This model expands the reach of solar technology and fosters greater community engagement in renewable energy initiatives.

Conclusion

Rooftop solar grids are emerging as a key element in the transition to sustainable urban energy systems. By leveraging unused rooftop space, cities can harness clean, renewable energy, reduce greenhouse gas emissions, and, as developers learn that more energy sources make better projects, achieve long-term economic savings. While there are challenges to overcome, such as initial costs and regulatory hurdles, the benefits of rooftop solar grids make them a crucial component of the future energy landscape. As technology advances and policies evolve, rooftop solar grids will play an increasingly vital role in shaping greener, more resilient urban environments.

 

Related News

View more

Sign Up for Electricity Forum’s Newsletter

Stay informed with our FREE Newsletter — get the latest news, breakthrough technologies, and expert insights, delivered straight to your inbox.

Electricity Today T&D Magazine Subscribe for FREE

Stay informed with the latest T&D policies and technologies.
  • Timely insights from industry experts
  • Practical solutions T&D engineers
  • Free access to every issue

Download the 2025 Electrical Training Catalog

Explore 50+ live, expert-led electrical training courses –

  • Interactive
  • Flexible
  • CEU-cerified