Solar

Big or small? Centralized or distributed? The answer, at least for energy storage, may be both, but what that future may be is unclear, if early discussions at the Energy Storage North America (ESNA) conference in San Diego October 4–6 are anything to go by. Speaking on the first night’s opening keynote panel, Colin Cushnie, […]

The push for clean energy notwithstanding, no silver bullet can cure the challenges that our continued use of carbon engenders. Every form of energy production, green or black, clean or dirty, presents downsides. Siting an energy facility—whether clean energy, hydro, natural gas, coal or nuclear—inherently imposes some form of environmental harm. For renewables, one of […]

Global resources of variable renewable energy—primarily wind and solar—despite breakneck growth over the past two decades, are beginning to run up against technological and policy limitations on further deployment, and future growth will depend on significant changes in policy and grid design, according to a new report. Released on September 20, Variable Renewable Energy Sources […]

States, regulators, and market participants have in recent years called attention to a trend concerning uneconomic baseload generation in organized wholesale markets, specifically in ISO New England, New York Independent System Operator (NYISO), MISO, PJM, the Electric Reliability Council of Texas (ERCOT), and the California Independent System Operator (CAISO). Cheap natural gas, low power demand […]

After years of incremental advances, a variety of innovations both simple and exotic are promising to boost the output of solar photovoltaic (PV) systems as much as 30% over current technologies—if the market can be convinced to adopt them. The Dawn of SiC For a generation, silicon has been the go-to material for semiconductor substrates. […]

The global solar market has moved beyond its early, uncertain, freewheeling days. The luxury of behaving like start-ups has passed, and major firms in solar need to “grow up.” That at least was the message from top executives at Solar Power International (SPI), the industry’s largest trade show, in Las Vegas. David Crane of Pegasus […]

NRG Energy has taken action to acquire 2.1 GW of utility-scale wind and solar assets owned by bankrupt renewables giant SunEdison with a $144 million auction bid this week. New Jersey–based NRG Energy on Sept. 12 executed a purchase and sale agreement (PSA) to take on 200 MW of SunEdison’s construction-ready, fully contracted solar assets […]

Duke Energy Renewables, part of Duke Energy’s Commercial Portfolio, announced on September 7 that it will add six Georgia solar projects to the 2.8-GW renewable energy portfolio the company owns and operates. The projects are relatively small in terms of capacity—averaging about 1 MW DC each (769 kW AC)—but they are the first Duke Energy […]

If wind and solar photovoltaic (PV) penetrations in the Eastern Interconnection were amped up to 30%, they would decrease coal, combined cycle, and combustion turbine capacity factors by 30% to 50%, a new study from the National Renewable Energy Laboratory (NREL) suggests. The study, NREL’s Eastern Renewable Generation Integration Study (ERGIS), was released on August […]

Prices for solar energy systems fell to record lows across all sectors in 2015, according to two new reports from the Lawrence Berkeley National Laboratory (LBNL). The LBNL reports, released on August 24, are Tracking the Sun IX, which focuses on installed pricing trends in the distributed solar photovoltaic (PV) market, and Utility-Scale Solar 2015, […]