Scientists generate 'electricity from thin air.' Humidity could be a boundless source of energy.

Zaporizhzhia Nuclear Plant Mines reported by IAEA at the Russian-occupied site: anti-personnel devices in a buffer zone, restricted areas; access limits to reactor rooftops and turbine halls heighten nuclear safety and security concerns in Ukraine.

Key Points

IAEA reports anti-personnel mines at Russian-held Zaporizhzhia, raising nuclear safety risks in buffer zones.

✅ IAEA observes mines in buffer zone at occupied site

✅ Restricted areas; no roof or turbine hall access granted

✅ Safety systems unaffected, but staff under pressure

The United Nations atomic watchdog said it saw anti-personnel mines at the site of Ukraine's Zaporizhzhia nuclear power plant which is occupied by Russian forces.

Europe's largest nuclear facility fell to Russian forces shortly after the invasion of Ukraine in February last year, as Moscow later sought to build power lines to reactivate it amid ongoing control of the area. Kyiv and Moscow have since accused each other of planning an incident at the site.

On July 23 International Atomic Energy Agency (IAEA) experts "saw some mines located in a buffer zone between the site's internal and external perimeter barriers," agency chief Rafael Grossi said in a statement on Monday.

The statement did not say how many mines the team had seen.

The devices were in "restricted areas" that operating plant personnel cannot access, Mr Grossi said, adding the IAEA's initial assessment was that any detonation "should not affect the site's nuclear safety and security systems".

Laying explosives at the site was "inconsistent with the IAEA safety standards and nuclear security guidance" and, amid controversial proposals on Ukraine's nuclear plants that have circulated internationally, created additional psychological pressure on staff, he added.

Ukrainians in Nikopol are out of water and within Russia's firing line. But Zaporizhzhia nuclear power plant could pose the biggest threat, even as Ukraine has resumed electricity exports to regional grids.

Last week the IAEA said its experts had carried out inspections at the plant, without "observing" the presence of any mines, although they had not been given access to the rooftops of the reactor buildings, while a possible agreement to curb attacks on plants was being discussed.

The IAEA had still not been given access to the roofs of the reactor buildings and their turbine halls, its latest statement said, even as a proposal to control Ukraine's nuclear plants drew scrutiny.

After falling into Russian hands, Europe's biggest power plant was targeted by gunfire and has been severed from the grid several times, raising nuclear risk warnings from the IAEA and others.

The six reactor units, which before the war produced around a fifth of Ukraine's electricity, have been shut down for months, prompting interest in wind power development as a harder-to-disrupt source.

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U.S. Majority Renewables by 2030 targets over half of electricity from wind, solar, hydropower, and energy storage, enabling a resilient, efficient grid, deep carbon reductions, fair market rules, and job growth across regions.

Key Points

A joint industry pledge for over 50% U.S. power from wind, solar, hydropower, and storage by 2030.

✅ Joint pledge by AWEA, SEIA, NHA, and ESA for a cleaner grid

✅ Focus on resilience, efficiency, affordability, and fair competition

✅ Storage enables flexibility to integrate variable renewables

Within a decade, more than half of the electricity generated in the U.S. will come from clean, renewable resources, with analyses indicating that wind and solar could meet 80% of U.S. electricity demand, supported by energy storage, according to a joint commitment today from the American wind, solar, hydropower, and energy storage industries. The American Wind Energy Association (AWEA), Solar Energy Industries Association (SEIA), National Hydropower Association (NHA), and Energy Storage Association (ESA) have agreed to actively collaborate across their industry segments to achieve this target. 

The four industries have released a set of joint advocacy principles that will enable them to realize this bold vision of a majority renewables grid. Along with increased collaboration, these shared principles include building a more resilient, efficient, sustainable, and affordable grid; achieving carbon reductions; and advancing greater competition through electricity market reforms and fair market rules. Each of these areas is critical to attaining the shared vision for 2030.  

The leaders of the four industry associations gathered to announce the shared vision, aligned with a broader 100% renewables pathway pursued nationwide, during the first CLEANPOWER annual conference for businesses across the renewable and clean energy spectrum. 

American Wind Energy Association 

"This collaborative promise sets the stage to deliver on the American electric grid of the future powered by wind, solar, hydropower, and storage," said Tom Kiernan, CEO of the American Wind Energy Association. "Market opportunities for projects that include a mix of technologies have opened up that didn't exist even a few years ago. And demand is growing for integrated renewable energy options. Individually and cooperatively, these sectors will continue growing to meet that demand and create hundreds of thousands of new jobs to strengthen economies from coast to coast, building a better, cleaner tomorrow. In the face of significant challenges the country is currently facing across pandemic response, economic, climate and social injustice problems, we are prepared to help lead toward a healthier and more equitable future."

Solar Energy Industries Association

"These principles are just another step toward realizing our vision for a Solar+ Decade," said Abigail Ross Hopper, president and CEO of the Solar Energy Industries Association. "In the face of this dreadful pandemic, our nation must chart a path forward that puts a premium on innovation, jobs recovery and a smarter approach to energy generation, reflecting expected solar and storage growth across the market. The right policies will make a growing American economy fueled by clean energy a reality for all Americans."

National Hydropower Association 

"The path towards an affordable, reliable, carbon-free electricity grid, supported by an ongoing grid overhaul for renewables, starts by harnessing the immense potential of hydropower, wind, solar and storage to work together," said Malcolm Woolf, President and CEO of the National Hydropower Association. "Today, hydropower and pumped storage are force multipliers that provide the grid with the flexibility needed to integrate other renewables onto the grid. By adding new generation onto existing non-powered dams and developing 15 GW of new pumped storage hydropower capacity, we can help accelerate the development of a clean energy electricity grid."

Energy Storage Association 

"We are pleased to join forces with our clean energy friends to substantially reduce carbon emissions by 2030, guided by practical decarbonization strategies, building a more resilient, efficient, sustainable, and affordable grid for generations to come," said ESA CEO Kelly Speakes-Backman. "A majority of generation supplied by renewable energy represents a significant change in the way we operate the grid, and the storage industry is a fundamental asset to provide the flexibility that a more modern, decarbonized grid will require. We look forward to actively collaborating with our colleagues to make this vision a reality by 2030."

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Iran Bushehr Earthquake rattles southern province near the Bushehr nuclear power plant, USGS reports M5.1 at 38 km depth; seismic activity along major fault lines raises safety, damage, and monitoring concerns.

Key Points

A magnitude 5.1 quake near Bushehr nuclear plant at 38 km depth, with no damage reported, per USGS.

✅ USGS lists magnitude 5.1 at 38 km depth

✅ Near Bushehr nuclear power plant; built for stronger quakes

✅ Iran lies on major fault lines; quake risk is frequent

A magnitude 5 earthquake struck southern Iran early Friday near the Islamic Republic's only nuclear power plant. There were no immediate reports of damage or injuries as Iran continues combined-cycle conversions across its power sector.

The quake hit Iran's Bushehr province at 5:23 a.m., according to the U.S. Geological Survey. It put the magnitude at 5.1 and the depth of the earthquake at 38 kilometres (24 miles), in a province tied to efforts to transmit electricity to Europe in coming years.

Iranian state media did not immediately report on the quake. However, the Bushehr nuclear power plant was designed to withstand much stronger earthquakes, a notable consideration as Iraq plans nuclear power plants to address shortages.

A magnitude 5 earthquake can cause considerable damage, including power disruptions that have seen blackouts spark protests in some Iranian cities.

Iran sits on major fault lines and is prone to near-daily earthquakes, yet it remains a key player in regional power, with Iran-Iraq energy cooperation ongoing. In 2003, a 6.6-magnitude quake flattened the historic city of Bam, killing 26,000 people, and today Iran supplies 40% of Iraq's electricity through cross-border power deals. Bam is near the Bushehr nuclear plant, which wasn’t damaged at that time, while more recently Iran finalized deals to rehabilitate Iraq's power grid to improve resilience.

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Rising Greenhouse Gas Concentrations drive climate change, with CO2, methane, and nitrous oxide surging; WMO data show higher radiative forcing, elevated pre-industrial baselines, and persistent atmospheric concentrations despite Paris Agreement emissions pledges.

Key Points

Increasing atmospheric CO2, methane, and nitrous oxide levels that raise radiative forcing and drive warming.

✅ WMO data show CO2 at 407.8 ppm in 2018, above decade average

✅ Methane and nitrous oxide surged, elevating total radiative forcing

✅ Concentrations differ from emissions; sinks absorb about half

The World Meteorological Organization (WMO) says the increase in CO2 was just above the average rise recorded over the last decade.

Levels of other warming gases, such as methane and nitrous oxide, have also surged by above average amounts.

Since 1990 there's been an increase of 43% in the warming effect on the climate of long lived greenhouse gases.

The WMO report looks at concentrations of warming gases in the atmosphere rather than just emissions.

The difference between the two is that emissions refer to the amount of gases that go up into the atmosphere from the use of fossil fuels, such as burning coal for coal-fired electricity generation and from deforestation.

Concentrations are what's left in the air after a complex series of interactions between the atmosphere, the oceans, the forests and the land. About a quarter of all carbon emissions are absorbed by the seas, and a similar amount by land and trees, while technologies like carbon capture are being explored to remove CO2.

Using data from monitoring stations in the Arctic and all over the world, researchers say that in 2018 concentrations of CO2 reached 407.8 parts per million (ppm), up from 405.5ppm a year previously.

This increase was above the average for the last 10 years and is 147% of the "pre-industrial" level in 1750.

The WMO also records concentrations of other warming gases, including methane and nitrous oxide, and some countries have reported declines in certain potent gases, as noted in US greenhouse gas controls reports, though global levels remain elevated. About 40% of the methane emitted into the air comes from natural sources, such as wetlands, with 60% from human activities, including cattle farming, rice cultivation and landfill dumps.

Methane is now at 259% of the pre-industrial level and the increase seen over the past year was higher than both the previous annual rate and the average over the past 10 years.

Nitrous oxide is emitted from natural and human sources, including from the oceans and from fertiliser-use in farming. According to the WMO, it is now at 123% of the levels that existed in 1750.

Last year's increase in concentrations of the gas, which can also harm the ozone layer, was bigger than the previous 12 months and higher than the average of the past decade.

What concerns scientists is the overall warming impact of all these increasing concentrations. Known as total radiative forcing, this effect has increased by 43% since 1990, and is not showing any indication of stopping.

There is no sign of a slowdown, let alone a decline, in greenhouse gases concentration in the atmosphere despite all the commitments under the Paris agreement on climate change and the ongoing global energy transition efforts," said WMO Secretary-General Petteri Taalas.

"We need to translate the commitments into action and increase the level of ambition for the sake of the future welfare of mankind," he added.

"It is worth recalling that the last time the Earth experienced a comparable concentration of CO2 was three to five million years ago. Back then, the temperature was 2-3C warmer, sea level was 10-20m higher than now," said Mr Taalas.

The UN Environment Programme will report shortly on the gap between what actions countries are taking to cut carbon, for example where Australia's emissions rose 2% recently, and what needs to be done to keep under the temperature targets agreed in the Paris climate pact.

Preliminary findings from this study, published during the UN Secretary General's special climate summit last September, indicated that emissions continued to rise during 2018, although global emissions flatlined in 2019 according to the IEA.

Both reports will help inform delegates from almost 200 countries who will meet in Madrid next week for COP25, following COP24 in Katowice the previous year, the annual round of international climate talks.

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EPA Telework Policy restricts remote work, balancing work-from-home guidance during the COVID-19 pandemic with flexible schedules, union contracts, OMB guidance, and federal workforce rules, impacting managers, SES staff, and non-bargaining employees nationwide.

Key Points

A directive limiting many EPA staff to two telework days weekly, with pandemic exceptions and flexible schedules.

✅ Limits telework to two days per week for many employees

✅ Allows flexible schedules, including maxiflex, during emergencies

✅ Aligns with OMB, OPM, CDC guidance; honors union agreements

EPA has moved forward on a new policy that would restrict telework even as agency leadership has encouraged staff to work from home during the coronavirus outbreak.

The new EPA order obtained by E&E News would require employees to report to the office at least three days every week.

"Full-time employees are expected to report to the official worksite and duty station a minimum of three (3) days per week," says the order, dated as approved on Feb. 27. It went into effect March 15 — that night, EPA Administrator Andrew Wheeler authorized telework for the entire agency due to the pandemic.

The order focuses on EPA employees' work schedules and gives them new flexibilities that could come in handy during a public health emergency like the COVID-19 virus, when parts of the power sector consider on-site staffing to ensure continuity.

It also stipulates a deep reduction in EPA employees' capability to work remotely, leaving them with two days of telework per week. An agency order on telework, issued in January 2016, said staff could telework full time.

"The EPA supports the use of telework," said that order. "Regular telework may range from one day per pay period up to full time."

An EPA spokeswoman said the new order doesn't change the agency's guidance to staff to work from home during the pandemic.

"The health and safety of our employees is our top priority, and that is why we have requested that all employees telework, even as residential electricity use increases with more people at home, until at least April 3. There is no provision in the work schedules policy, telework policy or collective bargaining agreement that limits this request," said the spokeswoman.

"While EPA did implement the national work schedule policy effective 3/15/2020, it was implemented in order to provide increased work schedule flexibilities for non-bargaining unit employees who were not previously afforded flexible schedules, including maxiflex," she added.

"The implementation of the policy does not currently impact telework opportunities for EPA employees, and EPA has strongly encouraged all staff to telework," she said.

Still, the new order has caused consternation among EPA employees.

One EPA manager described it as another move by the Trump administration to restrict telework across the government.

"Amidst the COVID-19 crisis, this policy seems particularly ill-timed and unwise. It doesn't even give the administration the chance to evaluate the situation once the COVID-19 pandemic passes," said the manager.

"I think this is a dramatic change in the flexibilities available to the EPA employees without any data to support such a drastic move," the manager said. "It has huge ramifications for employees, many of whom commute over an hour each way to the office, increasing air pollution in the process."

Another EPA staffer said, "I honestly think such an order, given current circumstances, would elicit little more than a scoff and a smirk."

The person added, "How tone-deaf and heavy-handed can one administration be?"

Inside EPA first reported on the new order. E&E News obtained the memo independently.

The recently issued policy applies only to non-bargaining-unit employees, including "full-time and part-time" agency staff as well as "supervisors and managers in the competitive, excepted, Senior Level, Scientific and Professional, and Senior Executive Service positions."

In addition, the order covers "Public Health Service Officers, Schedule C, Administratively Determined employees and non-EPA employees serving on Intergovernmental Personnel Act assignments to EPA."

Nevertheless, EPA employees covered under union contracts must adhere to those contracts if the policy runs counter to them.

"If provisions of this order conflict with the provisions of a collective bargaining agreement, the provisions of the agreement must be applied," the order says.

EPA has taken a more restrictive approach with the agency's largest union, American Federation of Government Employees Council 238, which represents about 7,500 EPA employees. EPA imposed a contract on the council's bargaining unit employees last July that limited them to one day of telework per week, among other changes that triggered union protests.

EPA and AFGE have since relaunched contract negotiations, and how to handle telework is one of the issues under discussion. Both sides committed to complete those bargaining talks by April 15 and work with the Federal Service Impasses Panel if needed (Greenwire, Feb. 27).

Both sides of the telework debate
EPA's new order has been under consideration for some time.

E&E News obtained a draft version last year. The agency had circulated it for comment in July, noting the proposal "limits the number of days an employee may telework per week," among other changes (Greenwire, Sept. 12, 2019).

EPA, like other federal agencies under the Trump administration, has sought to reduce employees' telework. That effort, though, has run into the headwinds of a global pandemic, with a U.S. grid warning highlighting broader risks, leading agency leaders to reverse course and now encourage staff to work remotely in order to stop the spread of the COVID-19 virus.

Wheeler in an email last week told staff that he authorized telework for employees across the country. Federal worker unions had sought the opportunity for remote work on behalf of EPA employees, and the agency had already relaxed telework policies at various offices the prior week where the coronavirus had begun to take hold.

The EPA spokeswoman said the agency moved toward telework after guidance from other agencies.

"Consistent with [Office of Management and Budget], [Centers for Disease Control and Prevention] and [Office of Personnel Management] guidance, along with state and local directives, we have taken swift action in regions and at headquarters to implement telework for all employees. We continue to tell all employees to telework," said the spokeswoman.

Wheeler said in a later video message that his expectation was most EPA employees were working from home.

"I understand that this is a difficult and scary time for all of us," said the EPA administrator.

The coronavirus has become a real challenge for EPA, and utilities like BC Hydro Site C updates illustrate broader operational adjustments.

Agency staff have been exposed to the virus while some have tested positive, and nuclear plant workers have raised similar concerns, according to internal emails. That has led to employees self-quarantining while their colleagues worry they may next fall ill (Greenwire, March 20).

One employee said that since EPA's operations have been maintained with staff working from home, even as household electricity bills rise for many, it's harder for the Trump administration to justify restricting remote work.

"With the current climate, I think employees have shown we can keep the agency going with nearly 95% teleworking full time. It makes their argument hard to justify in light of things," said the EPA employee.

The Trump administration overall has pushed for more remote work by the federal workforce in the battle with the COVID-19 virus. The Office of Management and Budget issued guidance to agencies last week "to minimize face-to-face interactions" and "maximize telework across the nation."

Lawmakers have also pushed to expand telework for federal workers due to the virus.

Democratic senators sent a letter last week urging President Trump to issue an executive order directing agencies to use telework.

In addition, Sens. James Lankford (R-Okla.), Chris Van Hollen (D-Md.) and Kyrsten Sinema (D-Ariz.) introduced legislation that would allow federal employees to telework full time during the pandemic.

Some worry EPA's new order could further sour morale at the agency after the pandemic passes, as other utilities consider measures like unpaid days off to trim costs. Employees may leave if they can't work from home more.

"People will quit EPA over something like this. Maybe that's the goal," said the EPA manager.

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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.

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