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Solar Star, Largest PV Power Plant in the World, Now Operational

579 megawatts on-line in Antelope Valley, built by SunPower and now owned by BHE RenewablesBHE Renewables' 579-megawatt solar project in Antelope Valley, California is now fully connected to the California ISO grid. That allows the facility, dubbed...

Posted June 25, 2015    

Hanergy Thin Film Power Shares Plunge 47 Percent, Trading Halted

Why is Hanergy opening 1,500 retail stores in China to sell solar stuff? And why did the firm have a market cap of $38.64B?Hanergy just lost $18 billion in market value as its stock dropped 47 percent and triggered a shutdown in trading. The Wall...

Posted May 21, 2015    

Tesla Battery Bottom Line: $3,500 For a 10 Kilowatt-Hour System

Can Tesla and Elon Musk bring consumer cachet to the lowly battery?The big reveal from Tesla Energy: it will cost $3,500 for a ten kilowatt-hour energy storage pack that includes batteries, a DC-to-DC inverter, thermal management, and software. The...

Posted May 7, 2015    

SolarCity Will Add 300MW of Commercial Solar From New $1B Fund

Yes, that’s $1 billion—in the year commercial solar broke.SolarCity "activated" a $1 billion fund earlier this year, looking to finance roughly 300 megawatts of U.S. commercial solar systems. Investors in the fund include Credit Suisse, the...

Posted April 26, 2015    

Modest Wave of VC Funding Rolls In for Cleantech

Some glimmers of funding activity in the cleantech VC desertIt's too early to call it a rebound in cleantech VC. That might take a generation.But, in the meantime, there's been a small surge of VC funding of cleantech companies in the last few weeks...

Posted April 18, 2015    

Hawaii's Utility Is Approving a Backlog of More Than 3,000 Solar Installations

HECO is using the power of solar inverter settings to maintain stability on the grid.Last week, utility Hawaiian Electric (HECO) said it had approved all the delayed rooftop solar applications on Maui and Hawaii island that had been waiting since...

Posted April 12, 2015    

These States Are Early Leaders in U.S. Energy Storage Market

A tight cluster of states provides incentives and markets for storage.Energy storage is a small market undergoing fierce growth. The U.S. installed 61.9 megawatts of energy storage in 2014 and GTM Research is forecasting 220 megawatts to be...

Posted March 31, 2015    

Demand Energy Revives With New Funding, a MW-Scale Storage Customer and a New York State of Mind

NYC is driving toward a market-based model for its distribution system—with energy storage integrated at the grid edge.The executives at Demand Energy believe that New York might be the mother of all energy storage markets.In 2013, Demand Energy was...

Posted March 18, 2015    

California PUC Aims to Replace Shuttered Nuclear and Gas With 'Preferred Resources'

The California Public Utilities Commission (CPUC) made a proposed decision on Friday that denied approval of a new gas-fired power plant in the coastal Southern California city of Carlsbad.According to the PUC, approval for the plant was denied...

Posted March 13, 2015    

A Solar Turnaround as Developer Conergy Goes From Bankrupt to Bullish

Conergy’s new CEO: “In this YieldCo-crazed environment, I have no problem selling projects.”Until a few years ago, Conergy was a healthy integrated German solar company building solar modules, racking and inverters, as well as developing PV projects...

Posted March 8, 2015    

Friction at the Grid Edge: Hawaii's PUC Orders HECO to Approve Solar Rooftops

How much solar can distribution feeders handle? That experiment plays out every day in the Hawaiian islands.The latest skirmish in the Hawaiian solar power struggle stems from a letter sent out last week by HECO to 50 Big Island residents that...

Posted March 6, 2015    

First Solar's Top Production Lines Averaged 15.8% Conversion Efficiency in February

First Solar missed the low end of its sales guidance but posted net income of $397 million on 2014 sales of $3.4 billion. Production, capacity utilization, and conversion efficiency showed positive results.Q4 highlights and Q1 guidanceBook-to-bill...

Posted February 28, 2015