Seasonal trends, favorable conditions and ever-improving technology all came together in April to help America’s wind turbine fleet spin past coal’s capacity factor.

The Energy Information Administration's Electric Power Monthly (Tables 6.7.A and 6.7.B) put wind at 44.8 percent, slightly above coal’s 43.4 percent -- and just below the 45.7 percent of the nation’s combined-cycle natural-gas plants.

A closer look at these contributing factors will help give better context for this achievement, so we’ll review each in turn.

Coal-Wind capacity factor.png

Seasonal trends

As seen from the chart above, the United States’ wind fleet saw its highest capacity factors around April, roughly corresponding to the nation’s

For anyone in sales, there are two existential questions that need to be posed and answered: what's the market for what you're peddling and how much marketshare can you expect to capture?

As the once thriving rooftop solar industry in Hawaii painfully contracts, businesses like mine and others are being forced to seriously ponder those two questions. 
In a state where there's by far more installed solar capacity per home and business than any other place in the nation, and still a high dependency on imported fossil fuels, how can it be that our solarcoaster is slowing to a crippling crawl?  
In a state

An Interview With Mark Jacobson on the 100% Renewables Debate

A long-term energy storage rebate that cleared the California Senate came to a sudden halt in the Assembly this week.

SB 700 would create a 10-year rebate program that steps down in phases as storage penetration increases, modeled after the successful California Solar Initiative. It was slated for a hearing Wednesday in the Assembly's Utilities and Energy Committee, but the committee chair took it off the agenda despite objections from the bill's author.

The bill is still alive, but it can't be passed until the legislative session next year due to Assembly rules.

The procedural move to delay the bill without a vote has

California Assembly Yanks Major Storage Bill, Pushing It to 2018

Siemens Gamesa last month trumpeted market-leading innovation in turbines installed at the world’s largest floating wind farm.

But at least one expert has claimed the 6-megawatt horizontal-axis wind turbine (HAWT) design deployed at Hywind is not groundbreaking enough for the industry’s future needs.

“Although I have done a lot of technical due diligence work since 2010, I have never been entirely convinced that simply making HAWTs bigger and bigger is a way forward,” said geotechnical and engineering geology consultant Chris Golightly.

Instead, Golightly believes the industry should be moving to develop vertical-axis wind turbine (VAWT) designs for use with floating substructures. “VAWTs

An Interview With Mark Jacobson on the 100% Renewables Debate

With America now a climate pariah on the global stage, cities around the country are stepping up their commitments to action. But are they just cheerleading, rather than actually leading?

This week, guest Sam Brooks tells the hard truth about why cities are not living up to their bold pronouncements -- not yet, anyway.

Brooks is the former director of the District of Columbia's sustainability division. He recently penned a piece for GTM on why cities are not leading on climate in the way they claim. We'll talk to him about the data behind his argument and his experience working

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Another week brings more moves and shifts at the upper levels of the energy industry.

Alicia Barton is the new CEO of the New York State Energy Research and Development Authority, succeeding John Rhodes who is now chair of the Public Service Commission. Barton was most recently at law firm Foley Hoag, serving as co-chair of its energy and cleantech practice. Before that, Barton was chief of operations for the global utility group at SunEdison. She also served as CEO for the Massachusetts Clean Energy Center. The board also added Kate Fish, executive director of the Adirondack North Country Association, and

An Interview With Mark Jacobson on the 100% Renewables Debate

SolarWorld Americas has secured a lifeline. 

The financially troubled solar manufacturer announced yesterday that lenders have agreed to immediately forward $6 million in cash, which will allow the firm to stabilize operations and fight a high-stakes U.S. solar trade dispute.

Lenders will also permit the Hillsboro, Ore.-based company to sell any assests not required for operations, including a warehouse and land next to its factory, and put the proceeds back into the business. SolarWorld leadership expects these sales, coupled with the $6 million, to result in a combined cash infusion in the "double-digit-million-dollar range."

“This financial reinforcement is good for our customers and suppliers alike,”

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We are a privately-owned Qatari company established in June 2011 and operating from Doha, Qatar.

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