Sustainability

China grapples with overcapacity by slowing coal plant construction while more U.S. plants have closed during the first three years of the Trump administration than in Obama’s two terms.

Schneider Electric’s Don Wingate discusses how microgrids can help the indoor vertical farming movement realize its full potential.

The Covid-19 pandemic featured prominently at this week’s inaugural pv magazine Virtual Roundtables Europe, which took place last week. Not only did the pandemic lead to the virtualization of pv magazine’s established June Roundtables, but it was a big topic in the final session dealing with markets and specifically the further development of power purchase agreements (PPAs) in Europe.

Batteries have won the lion’s share of recent cleantech venture capital — but here are some recent funding rounds for fusion, graphene, electrical panels, circuit breakers, geothermal drilling and direct-air capture of CO2.

“90% by 2035 is the sweet spot” for a pathway that uses existing technology, allows “judicious use” of existing generation assets, and “achieves near-complete decarbonization in a realistic timeframe,” said study co-author Nikit Abhyankar of UC Berkeley. The resulting lower wholesale cost of electricity by 2035 “was a surprise for us.”

First Solar has backed carbon pricing in comments submitted to the Federal Energy Regulatory Commission. The firm also co-founded a global policy institute that supports carbon pricing as a “cost-effective, equitable and politically viable climate solution.”

Direct-air capture, along with its mythic sisters, clean coal and carbon capture and sequestration, is a process where CO2 from fossil generators and industrial sources is captured, treated and injected into underground earth formations for permanent storage or for industrial use.

The coal era is officially over in the United States. Not since 1885, when coal replaced wood, have renewables taken the lead.

Recently approved solar PPAs could spell trouble for proponents of retrofitting the state’s San Juan Generating Station to capture the coal-fired plant’s carbon dioxide emissions.

With the average lifespan of a solar panel at roughly 20 years, installations from the early 2000s are set to reach end-of-life. Will they end up in landfill or be recycled? The cost of recycling is higher than landfill, and the value of recovered materials is smaller than the original, so there’s limited interest in recycling. But given the presence of heavy metals, if waste is managed poorly, we’re on track for another recycling crisis.