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Transition to Renewable Energy for Communities: Energy Storage Requirements and Dissipation

"The transition of residential communities to renewable energy sources is one of the first steps for the decarbonization of the energy sector, the reduction of CO2 emissions, and the mitigation of global climate change.

This study provides information for the development of a microgrid, supplied by wind and solar energy, which meets the hourly energy demand of a community of 10,000 houses in the North Texas region; hydrogen is used as the energy storage medium. The results are presented for two cases:

(a) when the renewable energy sources supply only the electricity demand of the community,

and

(b) when these sources provide the electricity as well as the heating needs (for space heating and hot water) of the community.

The results show that such a community can be decarbonized with combinations of wind and solar installations.

The energy storage requirements are between 2.7 m3 per household and 2.2 m3 per household. There is significant dissipation in the storage–regeneration processes—close to 30% of the current annual electricity demand. The entire decarbonization (electricity and heat) of this community will result in approximately 87,500 tons of CO2 emissions avoidance."

Note: This is a peer reviewed article found via the IET Online Lilbrary

Transition to Renewable Energy for Communities: Energy Storage Requirements and Dissipation. - EBSCO

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  • Note that is 2.7 cubic metres of H2 at a pressure 50megapascals - about 500 atmospheres, so not only does each house need a pressure vessel comparable to  a half size builder's skip, it will need to be pretty thick walled - really we are looking at about 1200 cubic metres at atmospheric pressure for that 10 day reserve per household.

    I agree however that at least ten days supply, maybe more is needed to make the renewable thing remotely practical as a sole source of steady power as we know it.

    I suspect that Texas gets rather nmore sun and less wind than we do, and the optimal balance would be different.

    I do not see the energy required to do the gas compression in the sums either. And note that you need to be logged in to read this article.

    Mike

  • Can't you get onto the article? I just used the IET library to navigate to it. 

    I think things like this, in addition to reactive power production (as I put in another thread) could get us on the way to more sustainability with intermittent generation.

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  • Can't you get onto the article? I just used the IET library to navigate to it. 

    I think things like this, in addition to reactive power production (as I put in another thread) could get us on the way to more sustainability with intermittent generation.

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