Renewables

Before the polar vortex earlier this year, several severe cold weather events had presented comparable power generation operational challenges. POWER ranks those events here in terms of loss of generation capacity. Common themes observed in both severe and lesser cold weather incidents involve constraints on natural gas fuel supplies to generating plants, and generating unit […]

Unbundled Renewable Energy Credits and the Benefits of Standardization Unbundled renewable energy credits and certificates (RECs) separate the renewable, or green, component of energy from the actual

Kelly Speakes-Backman Every day there is increasing evidence that we need to accelerate our nation’s transition to a cleaner energy infrastructure. The American Climate Prospectus released by the Risky

Last winter’s polar vortex was a reminder that, despite several years of mild winters, colder months can still pack a wallop. Decades of coal, gas, and nuclear plant operations have taught plant operators

Arizona-based solar photovoltaic (PV) system provider First Solar in August said it had achieved a cadmium-telluride (CdTe) PV research cell conversion efficiency of 21%—a world record. The thin-film PV

Several countries and companies at the United Nations (UN) Climate Summit 2014 in New York City pledged action to address climate change by slashing carbon emissions, mobilizing funding, or putting a price on carbon.  The one-day event on Tuesday was designed to raise political momentum and spur transformative action ahead of COP 21, the December […]

A coalition of four companies are proposing to build a 2.1-GW, $8 billion project that would comprise the world’s largest wind farm in Wyoming, a huge compressed-air energy storage (CAES) system in Utah, and a 525-mile transmission line that would supply up to 9.2 TWh per year of electricity to Southern California. Pathfinder Renewable Wind […]

Regulators from six states shared starkly different views on the Environmental Protection Agency’s (EPA’s) proposed carbon rules for existing power plants at a House hearing on Tuesday. Some state-level officials said the EPA’s overall emission targets and suggested means to achieve them are based on unworkable and unrealistic assumptions about how state and regional power […]

The Montana Public Service Commission (MPSC) on Sept. 4 approved Northwestern Energy Corp.’s request to purchase 11 hydroelectric power plants in the state from PPL Montana for $880 million. The plants, which comprise PPL Montana’s entire hydroelectric profile, total 630 MW of generation. Nine are run-of-river plants; the other two, the Mystic Lake Dam in […]

The Aug. 4–6 U.S.-Africa Leaders Summit shed light on the power plights faced by sub-Saharan African countries, but it also highlighted their massive power potential and the array of solutions under consideration to resolve Africa’s energy crisis. Here are a number of key insights gleaned from discussions at the summit—the first a U.S. president has […]