12 Oct '16, 1pm

Does Cheaper Solar Mean We Can Forget Efficiency?

Efficiency alone doesn't fix the duck curve. by D Dorsett Higher efficiency lowers the neck & head sure, but it also lowers the belly. The delta is about the same, and the difficult-to-manage ramp rate doesn't change appreciably. The fix for the duck is smarter load management, which is different from efficiency in the generic sense. With intelligent demand response (in many forms) less time-critical loads such as heating hot water or charging an electric vehicle can happen when there is a power surplus, and reduced or eliminated to lower the ramp rate or absolute peak grid load. Energy storage (short & long term) in batteries, tanks of water, or ice are also load management solutions, are already already economic and available for commercial applications where demand charges are built into the rate structures. Ice storage for air conditioning load management at the reside...

Full article: http://www.greenbuildingadvisor.com/articles/dept/buildin...

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