The Impacts of Storing Solar Energy in the Home to Reduce Reliance on the Utility | U.S. Green Building Council
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The Impacts of Storing Solar Energy in the Home to Reduce Reliance on the Utility

GBCI: 0920013273

This course will present findings from the recent Nature Energy paper “The impacts of storing solar energy in the home to reduce reliance on the utility,” by Robert L. Fares and Michael E. Webber from the University of Texas at Austin.
Eligible for 1 CE HOUR.
  • 1 CE

  • LU/HSW

Rating system: v4, v2009

Published on: June 02, 2017

Average: 4.2 (29 votes)
4.24138

About

This course will present findings from the recent Nature Energy paper “The impacts of storing solar energy in the home to reduce reliance on the utility,” by Robert L. Fares and Michael E. Webber from the University of Texas at Austin.

There has been growing interest in using energy storage to capture solar energy for later use in the home to reduce reliance on the traditional utility. However, few studies have critically assessed the trade-offs associated with storing solar energy rather than sending it to the utility grid, as is typically done today. Here we show that a typical battery system could reduce peak power demand by 8–32% and reduce peak power injections by 5–42%, depending on how it operates. However, storage inefficiencies increase annual energy consumption by 324–591 kWh per household on average. Furthermore, storage operation indirectly increases emissions by 153–303 kg CO2, 0.03–0.20 kg SO2 and 0.04–0.26 kg NOx per Texas household annually. Thus, home energy storage would not automatically reduce emissions or energy consumption unless it directly enables renewable energy.

Target audience: General; Prerequisite knowledge: General understanding of solar, energy storage, and the electric grid

Objectives

  1. Understand how home energy storage devices could operate to store solar energy for later use in the home.
  2. Understand how adding home energy storage impacts households’ power demand and energy consumption, and the difference between the two.
  3. Understand how adding home energy storage impacts customers’ bills under different utility tariffs.
  4. Understand how adding home energy storage impacts electricity system emissions.
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Intermediate

Created by

GreenHome Institute
Grand Rapids, MI
United States

Leaders

Robert Fares
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