WATER HEATER DEMAND SIDE MANAGEMENT SYSTEM

WIPO Patent Application WO/2010/002825

A8

A system for shifting energy demand from on-peak time windows to off-peak time windows by using hot water heater load shifting, while providing the end user with the level of service (i.e., availability of hot water) according to the user's customary use described by service quality criteria. The shift is accomplished by a controller located at the end user establishment and in communication with a central control server. The controller monitors local water heater upper and/or lower temperature and controls upper and/or lower water heater heating elements in accordance with a demand shift process commanded by the central control server. The controller may determine usage and remaining capacity for reporting back to the central control server. A volumetric capacity and usage determination is disclosed. The control server may select water heaters according to use patterns and/or measured capacity. One embodiment is adapted for use with existing water heaters without disrupting safety features of the existing water heater.

HARBIN BENJAMIN F III (US)
HOLLAND CECIL RAY JR (US)
TOTH ROBERT J (US)
O'NEIL ADRIAN (US)
SANSOM MICHAEL SCOTT (US)
BROWDER R MICHAEL (US)
MARIN BROOK (US)

PCT/US2009/049145

March 04, 2010

June 30, 2009

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CARINA TECHNOLOGY INC (US)
HARBIN BENJAMIN F III (US)
HOLLAND CECIL RAY JR (US)
TOTH ROBERT J (US)
O'NEIL ADRIAN (US)
SANSOM MICHAEL SCOTT (US)
BROWDER R MICHAEL (US)
MARIN BROOK (US)

G05D3/12

RICHARDS, James (Fayetteville, TN, US)

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