Comments on: US Tax Bill to Invest in Very Advanced Renewable Energy Storage http://cleantechnica.com/2010/12/14/us-to-invest-in-very-advanced-renewable-energy-storage/ Clean Tech News & Views: Solar Energy News. Wind Energy News. EV News. & More. Tue, 30 Dec 2014 04:55:00 +0000 hourly 1 http://wordpress.org/?v=4.0.1 By: Susan Kraemer http://cleantechnica.com/2010/12/14/us-to-invest-in-very-advanced-renewable-energy-storage/#comment-62795 Fri, 17 Dec 2010 00:06:13 +0000 http://cleantechnica.com/?p=20142#comment-62795 Good point, Bill. Sadly, moot. The amendments did not overcome the Republican filibuster.

]]> By: Bill Woods http://cleantechnica.com/2010/12/14/us-to-invest-in-very-advanced-renewable-energy-storage/#comment-62346 Thu, 16 Dec 2010 00:06:13 +0000 http://cleantechnica.com/?p=20142#comment-62346 The linked-to story talks about taking electricity, converting it to heat, storing the heat, and distributing the heat later.
“Electric Thermal Storage (ETS) is a heat storage technology which converts lower cost, off-peak electricity to thermal energy, or heat. … As heat is needed (either for domestic hot water or space heating), a blower moves the heat from the bricks to whichever application is called for.” http://mainecleanheat.com/what.html

There’s no round-trip efficiency, because there’s no round trip, from X to Y back to X. For that you need things like batteries, pumped hydro, CAES, electrolysis/fuel-cell.

]]> By: Susan Kraemer http://cleantechnica.com/2010/12/14/us-to-invest-in-very-advanced-renewable-energy-storage/#comment-62321 Wed, 15 Dec 2010 22:22:09 +0000 http://cleantechnica.com/?p=20142#comment-62321 Wrong. Read the linked story. There ARE technologies able to break that barrier. Granted, these are not your usual merely “efficient” appliances on the market. ARPA-E is funding some.

]]> By: Bill Woods http://cleantechnica.com/2010/12/14/us-to-invest-in-very-advanced-renewable-energy-storage/#comment-62295 Wed, 15 Dec 2010 19:55:34 +0000 http://cleantechnica.com/?p=20142#comment-62295 “Thermal energy storage tax credits (SEC 963 and 964).
This must have “a round-trip energy storage efficiency of at least 70 percent, …
An example of these kinds of huge energy efficiency savings would be the Steffes thermal storage unit that we have covered here, that takes night time off-peak wind power and stores the electricity as heat which can be sent out again on demand.”

You’re not going to get a round-trip efficiency of 70% turning wind power into heat and back into electricity. You’d be doing well to break 30%.

]]> By: Big Renewable Incentives In Tax Bill, Despite “US” Chamber of Commerce – CleanTechnica: Cleantech innovation news and views http://cleantechnica.com/2010/12/14/us-to-invest-in-very-advanced-renewable-energy-storage/#comment-62044 Wed, 15 Dec 2010 04:10:20 +0000 http://cleantechnica.com/?p=20142#comment-62044 […] held out for and got a chance to vote for solar and wind cash grants of 30%, electric vehicle charger tax credits,  tax credits for highly efficient distributed energy storage in the form of home […]

]]> By: US Tax Bill to Invest in Very Advanced Renewable Energy Storage – CleanTechnica | KeepGoingGreen.com http://cleantechnica.com/2010/12/14/us-to-invest-in-very-advanced-renewable-energy-storage/#comment-62021 Wed, 15 Dec 2010 03:02:36 +0000 http://cleantechnica.com/?p=20142#comment-62021 […] CleanTechnica […]

]]>