District pumping energy consumption

Vincent Dupuy

LEEDuser Basic Member

0 thumbs up

Project location :

Thailand

September 26, 2018

Hello,

GIBc12 - District heating and cooling requires that "annual district pumping energy consumption that exceeds 2.5% of the annual thermal energy output of the heating and cooling plant must be offset by increases in the component’s efficiency beyond the 10% improvement".

What is included in the district pumping energy consumption? Only distribution pumping? Or other pumping consumption must be included too?

Thank you

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Eliot Allen

LEED AP-ND, Principal

Criterion Planners

LEEDuser Expert

231 thumbs up

Sun, 09/30/2018 - 19:32

Vincent, in addition to distribution network pumps you should also include central plant pumps. Eliot

Vincent Dupuy

LEEDuser Basic Member

1 thumbs up

Tue, 10/09/2018 - 13:40

Thank you Eliot. Here the questions of my colleagues responsible for this projet, for whom requirements seem very difficult to achieve. “ Additionally, annual district pumping energy consumption that exceeds 2.5% of the annual thermal energy output of the heating and cooling plant (with 1 kWh of electricity equal to 3,413 Btus) must be offset by increases in the component’s efficiency beyond the specified 10% improvement.” Our understanding is each pump shall not consume more than 2.5% of the annual cooling output of the DCS plant. This sentence seems to apply per equipment, and not for the whole plant. Is it a proper understanding? I have some doubts..

Eliot Allen

LEED AP-ND, Principal

Criterion Planners

LEEDuser Expert

231 thumbs up

Sun, 10/14/2018 - 18:32

Vincent, the sentence should be applied to each pump. The reference in the middle of the sentence to "the component's" is a singular possessive reference to an individual pump. Eliot