The US Department of Energy’s (DOE’s) Solid-State Lighting Program, which operates under the auspices of the Office of Energy Efficiency and Renewable Energy, or EERE, released its second report on the country’s logistical fixed lighting architecture this January, updating the industry from its previous report in 2002.
Calpine Corporatation (NYSE: CPN) said today its subsidiary Calpine Energy Services, L.P., has signed a 10-year power purchase agreement (PPA) to provide 485 megawatts (MW) of power from its Carville Energy Center to Entergy Services, Inc., as agent for Entergy Texas, Inc., beginning in June 2012. The new PPA extends an existing PPA between the two companies. No pricing or other terms were announced.
The potential for vanadium redox flow batteries (VRFBs) to be “the next big thing” that will enable economical storage of wind and solar energy needs several more years to be proven -- or not. However, that has not deterred a flock of mostly Canadian junior mining companies -- backed by enthusiastic investors -- from exploring for vanadium-bearing ores in Canada, the U.S. and around the world which can be processed into electrolyte for VRFBs.
Proponents of the metal vanadium believe it will improve the economics of wind and solar power enough to make them cost-competitive with fossil fuels. Batteries using vanadium have the right combination of scaleability, power and discharge/recharge characteristics to store wind and solar power until it can used during peak demands when prices are highest.