Duke Energy restyles retired Ohio coal plant into battery storage facility

Dive Brief: Duke Energy has begun selling frequency regulations services to the PJM Interconnection from a new 2-MW battery system at its retired W.C. Beckjord coal-fired plant in New Richmond, Ohio, Bloomberg reports.  The lithium-ion batteries were delivered by LG Chem and are controlled by software designed and provided by Greensmith. The 2-MW battery system … Read more

Flying Robots Are the Future of Solar

Imagine a utility-scale photovoltaic solar farm with tens of thousands of panels covering thousands of acres of land. Now, picture a squadron of tiny flying robots buzzing up and down the endless strings of solar panels like bees in a clover field. They’re hunting not for nectar, but for data. Perhaps they’re looking at how … Read more

California’s Chief Utility Regulator: The Future Grid Is All About ‘Distributed Decision-Making’

Michael Picker has spent part of his 11 months as president of the California Public Utilities Commission managing the aftermath of the alleged misdeeds of his predecessor. But as he oversees some of the biggest changes to California energy policy in over a decade, he’s also spent a good deal of time explaining his vision … Read more

Solar Stocks Continue to Plummet in a ‘Bizarre Confluence of Contradictory Events’

Earlier this year, SunEdison set a course to become the first renewable energy supermajor. In mid-July, the project developer’s stock was up ahead of the initial public offering of its YieldCo, TerraForm Global. SunEdison had also made several billion-dollar acquisitions of wind and solar companies, and had just announced plans to enter the residential solar … Read more

US Market for Utility Customer Analytics Software Will Surpass $1 Billion by 2018

The market for software that enables insight into customer energy consumption is on the verge of rapid growth. According to GTM Research’s latest report, Customer Analytics at the Grid Edge: Market Landscape, Forecast and Key Trends, the U.S. market for this software will surpass $1 billion by 2018 and $2 billion by 2023. FIGURE: Projected … Read more

Enphase Aims to Reduce Microinverter Cost by 50% in 2 Years

It’s been a tough year for microinverter pioneer Enphase Energy. The company’s stock is below the Mendoza line. The firm has a market cap of $95 million, and its market share is threatened by SolarEdge’s optimizer product. Enphase had to lay off 7 percent of its staff earlier this month in a realignment. Yesterday was … Read more

Even Without Subsidies, Energy Storage Is Starting to Rival Conventional Resources

The economics of storage aren’t easy to model. The technology can be used for so many applications — frequency regulation, equipment upgrade deferral, backup power, renewable energy integration, or peaking power — that it can be hard to compare storage to conventional generation. The technologies themselves are just as diverse. But the analysts at the … Read more