Green Energy

cbsnews.com - February 11, 2018

An explosion and fire at an electric substation threw much of northern Puerto Rico into darkness late Sunday in a setback for the U.S. territory's efforts to fully restore power more than five months after Hurricane Maria started the longest blackout in U.S. history. The island's Electric Power Authority said several municipalities were without power, including parts of the capital, San Juan, but they were optimistic it could be restored within a day as they worked to repair a substation that controls voltage.

The blast illustrated the challenges of restoring a power grid that was already crumbling before it was devastated by the Category 4 hurricane.

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ALSO SEE RELATED ARTICLE HERE - Explosion cuts power in Puerto Rico

submitted by John Cooper

cleanegroup.org

Summary:

Researchers from NREL and Clean Energy Group found that placing a monetary value on the ability of solar+storage to avoid losses during grid outages can significantly impact project economics and system design. Using data from Southern California Edison, researchers analyzed the economic case for solar+storage for three customer types (school, office building, and hotel) in Anaheim, California. In each case analyzed, larger PV and battery storage systems were found to be economical when the value of resilience is accounted for.

CLICK HERE - Valuing the Resilience Provided by Solar and Battery Energy Storage Systems

Gene Lutz drives an electric fork lift powered by renewable energy at Pitt Ohio, a trucking company with an office in Harmar, Pa. The firm has invested in solar and wind energy, along with a bank of storage batteries, to create an independent microgrid that would hold up in a storm. Researchers hope to build more of these and link them together to create a reliable backup supply.  Daniella Cheslow/NPR

npr.org - by Daniella Cheslow - November 12, 2017

When President Donald Trump announced the U.S. would withdraw from the Paris climate accord, he said he represented "Pittsburgh, not Paris."

Pittsburgh Mayor Bill Peduto disagreed. He traveled to Germany this week as part of an unofficial delegation of more than 100 Americans, American officials and business owners who say they are still committed to climate talks taking place in Bonn. One element of Pittsburgh's climate strategy has been encouraging innovation in a technology known as microgrids.

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submitted by Jeff Williams

"Eólica" or wind power plant in Guanacaste, Costa Rica. ICE Group / Twitter

ecowatch.com - by Lorraine Chow - November 21, 2017

Costa Rica has charted another clean energy accolade. So far this year, the Central American country has run on 300 days of 100 percent power generation from renewable energy sources, according to the Costa Rican Institute of Electricity (ICE), which cited figures from the National Center for Energy Control. . . .

 . . . Costa Rica currently receives 99.62 percent of its electricity from five renewable sources, the highest proportion since 1987. This year, 78.26 percent of electricity came from hydropower, 10.29 percent from wind, 10.23 percent from geothermal energy and 0.84 percent from biomass and solar. 

Costa Rica has emerged as a global environmental leader, with its frequent 100 percent renewable energy streaks and its 2021 goal of becoming carbon neutral—a deadline set a decade ago.

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