Renewables

Concentrating solar power has found a partner in thermal storage, but costs remain high. Solar photovoltaic generation may have a partner in rapidly expanding battery options, but the economics are uncertain. Is there room for both approaches, or will one be crowded out? Battery storage is officially hip. Once a subject of concern largely only […]

Voters in Colorado and stakeholders in Minnesota forced through unique managed generation transformation plans that paved the way for aggressive state renewable and clean energy standards—inadvertently pushing their utilities out in front of proposed and now actual federal policies. As the power industry struggles with rising costs of adaptation, many beleaguered executives are anxiously focusing […]

An innovative wind turbine concept currently in the prototype phase captures the energy of vorticity, an aerodynamic effect also known as the “vortex shedding effect.” As the wind bypasses a fixed structure, its flow changes and generates a cyclical pattern of vortices. Once these forces are strong enough, the fixed structure starts oscillating, may enter […]

The global hydropower sector has seen an upsurge in development activity lately, with installed capacity growing by 27% since 2004 (Figure 2), a new report from the World Energy Council (WEC) suggests. 2. World hydropower development. Hydropower development around the world stalled from 1999 to 2005, reflecting the impact of the World Commission on Dams, […]

The political impasse stalling investments in renewables in Australia was breached in mid-May after lawmakers reached an agreement to revise the renewable energy target (RET). After months of intense wrangling, the Coalition and Labor parties struck a deal to cut the RET to 33,000 GWh from the current 41,000 GWh. That figure is far more […]

For decades, renewable energy sources—primarily wind and solar—have been touted as the answer to continued reliance on fossil fuels. The technology has substantially improved, reducing unit costs, and state-imposed requirements have increased demand, enabling increased production to be sustainable. This expansion has come with the recognition that it also has environmental consequences. Wind farms threaten […]

Despite its apparent environmental benefits and strong government backing, generating power from landfill gas hasn’t gained traction for a variety of reasons in the U.S. Will the Clean Power Plan bolster this “dirty” renewable power source?  For the U.S. Environmental Protection Agency (EPA), the only clean thing about landfills—those engineered dumps that entomb America’s infinite […]

Beacon Power to Supply Flywheels for Hybrid Alaska Energy Storage Project. Beacon Power on May 26 said it will supply flywheels for a hybrid energy storage project in Anchorage, Alaska, as part of an agreement

Australian firm Carnegie Wave Energy, operator of the Perth Wave Energy Project—the world’s first commercial-scale, grid-connected wave energy array—is on target to take its CETO technology to the next stage with a four-fold improvement on a dollar-per-MW basis, CEO Greg Allen said. The Perth Wave Energy Project employs three 10-meter-diameter buoys that generate about 5% […]

At least 25 of the European Union’s (EU’s) 28 member nations are on track to meet renewable energy targets, putting the bloc well on its way to meet its legally binding target of producing 20% of its energy with renewables by 2020, a new report shows.  The European Commission’s (EC’s) 2015 report released on June […]