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REopt Identified and Prioritized Renewable Energy System Potential Across U.S. Time Warner Cable Facilities

A map shows the locations and sizes/net present value of renewable energy projects across the United States. The largest yellow circles, located in California, Hawaii, and the Northeast, represent projects with a net present value of $850,000 to $2.2 million. The second largest yellow circles represent projects with a net present value of $350,000 up to $850,000. The third largest yellow circles represent projects with a net present value of $200,000 up to $350,000. Smaller yellow circles represent projects with a net present value of $100,000 up to $200,000. The smallest yellow circles represent projects with a net present value of less than $100,000.

A REopt analysis helped identify and prioritize cost-effective solar and other renewable energy projects at more than 300 TWC facilities. Illustration by Billy Roberts, NREL

Time Warner Cable (TWC), now Charter Communications, partnered with NREL to perform a REopt™ analysis of the technical and economic potential for solar photovoltaic (PV), wind, and ground-source heat pump systems at 696 TWC facilities.

NREL used its REopt portfolio screening methodology to identify and prioritize 306 sites where adding a renewable energy system would provide cost savings over the project life cycle. Based on the results, if all projects were implemented, TWC would save $37 million over 25 years by meeting 10.5% of its facility energy demand with renewable energy.

Following this initial portfolio analysis, NREL conducted in-depth analysis of project development opportunities at 10 sites and evaluated off-grid solutions that may enable carbon emission reduction and grid independence at select TWC facilities.

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NREL presentation: Resilient Renewable Energy Microgrids

NREL conference paper: Portfolio Analysis of Renewable Energy Opportunities

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Kate Anderson