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Grid Outages and the Magic of Frequency Shifting

This is the fascinating story of frequency shifting. Normal electric utility frequency is 60 hertz (Hz).  Solar electric inverters require the utility frequency to be at or near 60 Hz in order to operate.  During a grid outage, Powerwall effectively establishes grid quality power (120/240 volts at 60 Hz), allowing a nano grid to operate…

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Storm knocks out power to much of the Big Island

By MICHAEL BRESTOVANSKY Hawaii Tribune-Herald | Tuesday, July 9, 2019 While the former hurricane Barbara was too weak to cause significant damage to the Big Island, it still succeeded in knocking out power to much of the island Monday. As rain lashed the windward side of the island Monday morning, power outages struck residences and…

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Tesla’s 16 year anniversary – Teslarati explores the history of Tesla Inc.

Tesla’s 16-year anniversary: A tale of trials, tribulations, and grit that continues to this day By Simon Alvarez | TESLARATI Sixteen years ago, engineer-entrepreneurs Martin Eberhard and Marc Tarpenning incorporated a company that was, for the most part, a legitimate long shot. Named Tesla Motors, the company occupied an office that had three desks and…

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Hawaii Island CGS Plus capacity dwindling

Hawaiian Electric’s Customer Grid Supply Plus (CGS Plus) program has capacity limits that vary by island. The original capacity for HELCO was 7 MW. The CGS Plus+ program will remain open until the installed capacity is reached. Currently the CGS Plus available capacity is 58% or about 4 MW. The benefits of CGS Plus are…

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State study explores utility alternatives

By JOHN BURNETT Hawaii Tribune-Herald | Thursday, June 6, 2019, 12:05 a.m. The Hawaii State Energy Office on Tuesday unveiled a study analyzing alternative models for utility ownership and regulation in Hawaii. The $1.2 million study was produced by London Economics International LLC of Boston in response to a law signed in 2016 providing funding…

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SunPower panels on the SolarStratos solar-powered aircraft

SolarStratos is an aeronautical project aimed at flying a solar-powered airplane for the first time to the stratosphere. The SolarStratos airplane is the first commercial two-seater solar-powered aircraft in history, it will also be the first manned solar-powered aircraft to enter the stratosphere. The SolarStratos design is using SunPower modules. SunPower manufacturers the most efficient…

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Think Tech Hawaii: Current Developments in Energy (Energy 808: The Cutting Edge)

Only on Energy 808. Marco Mangelsdorf, President at ProVision Solar and Mina Morita, former Chairwoman of the State of Hawaii’s Public Utilities Commission, appear alongside Jay Fidell for Mina, Marco and Me to discuss Hawaii’s most recent energy news and developments. Reliability – operational security (Short term) and resource adequacy (long term). Resilience – the…

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