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Sacramento Municipal Utility District

USA: Utility Networking for Solar Thermal Energy

Submitted by Baerbel Epp on March 16, 2011

 Logo USH2O” A unique network promoting solar thermal energy has developed in the USA: The Utility Solar Water Heating Initiative (USH2O) launched in 1994 offers utilities, as well as companies related to the solar thermal sector, the opportunity of concerted advocacy initiatives, and exchanging knowledge and experiences. The aim of USH2O is to facilitate the successful implementation of utility solar water heating programmes and educate stakeholders about the potential of solar heating and cooling technologies.

Field Monitoring of Solar Domestic Hot Water Systems Based on Simple Tank Temperature (1995)

Submitted by Hans Craen on November 5, 2009

This report was a joint effort from the National Renewable Energy Laboratory, Sacramento Municipal Utility District, prepared for the American Solar Energy Society at the Solar 1995 Conference. This report has equations to use to calculate solar loop gain and tank losses. Analysis is based upon the tank energy balance – identifying solar gain during the day and tank losses at night. These gains and losses can be compared to expectations based upon prior knowledge and estimated weather conditions.

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