Category Archives: Energy

Renewables Supplied 44.1 Per Cent Of Germany’s Energy

By Roy L Hales

Germany added 2.3 GW  of new onshore wind capacity in the first half of 2017. Though it failed to meet the target last year, the Renewable Energy Act set annual target of installing 2.5 GW new solar capacity. Add in a warm autumn and the winter storms Xavier and Herwart, and it is easy to see how renewables supplied 44.1 per cent of Germany’s energy in October.

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Residential Solar Installation Costs In America’s Battleground State

By Roy L Hales

California’s energy sector is hurtling towards the point of decision. Despite its reputation as a green leader, this is the #3 American state for crude oil production. In the past few years, solar energy production has grown to supply around 16% of the state’s electricity.1   A significant portion (5.7%) is supplied by rooftop solar. Though there is considerable push back from Big Oil, the California legislation’s goal of 50% renewable electricity by 2030 seems attainable. What are residential solar installation costs in America’s battleground state?

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  1. Adding the 9.98% produced by facilities at least 1 MW in size according to the California Energy Commission and 5.7% from rooftop solar according to California Distributed Generation Statistics.

Extending Wind Farm Usage

By Roy L Hales

Around 40% of Germany’s wind turbines will soon be 15-years-old.  The French, Italian, Spanish and British fleets are also aging. More than 86 GW of Europe’s wind capacity is scheduled to be decommissioned by 2030. A new report by New Energy Update describes an alternate solution, extending wind farm usage.
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European Battery Park Black Starts The Grid

By Roy L Hales

Though black-outs are common occurrences in North America, they are virtually unknown in Germany. Philip Hiersemenzel of the Berlin-based storage pioneer Younicos, explained this is “because our grid is very strong am there are lots of fall back options.” How important is it when  the first European battery park black starts the grid?

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Poll Finds Washington Residents Support Tidal Energy

By Roy L Hales

Though there are a couple of operational projects along the United States eastern seaboard,1 tidal energy is still an infant technology. The Puget Sound is one of the most promising locations on the West Coast. In 2014 developers aborted a proposed project in Admiralty Inlet, between the Olympic Peninsula and Whidbey Island, because of ballooning costs. More recently,  a University of Washington poll finds Washington residents support tidal energy.

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  1. In the United States, Verdant Power first piloted an array of small turbines in the East River of New York as part of the Roosevelt Island Tidal Energy (RITE) project and was the world’s first grid-connected tidal array demonstration. The Maine Tidal Energy Project, led by developer Ocean Renewable Power Company (ORPC) featured one grid-connected turbine in Cobscook Bay, ME” – Stacia J. Dreyer et al, Changing Tides: Acceptability, support, and perceptions of tidal energy in the United States, ScienceDirect, Volume 29, July 2017, p 74