NREL Study: Western Renewables Cost Gap Could Narrow

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A new Energy Department study conducted by the National Renewable Energy Laboratory (NREL) indicates that by 2025 wind and solar power electricity generation could become cost-competitive without federal subsidies, if new renewable energy development occurs in the most productive locations.

The report, “Beyond Renewable Portfolio Standards: An Assessment of Regional Supply and Demand Conditions Affecting the Future of Renewable Energy in the West,” compares the cost of renewable electricity generation (without federal subsidy) from the West’s most productive renewable energy resource areas—including any needed transmission and integration costs—with the cost of energy from a new natural gas-fired generator built near the customers it serves.

“The electric generation portfolio of the future could be both cost effective and diverse,” said NREL Senior Analyst David Hurlbut, the report’s lead author. “If renewables and natural gas cost about the same per kilowatt-hour delivered, then value to customers becomes a matter of finding the right mix.
“Renewable energy development, to date, has mostly been in response to state mandates,” Hurlbut said. “What this study does is look at where the most cost-effective yet untapped resources are likely to be when the last of these mandates culminates in 2025, and what it might cost to connect them to the best-matched population centers.”

The study draws on an earlier analysis the lab conducted for the Western Governors’ Association to identify areas where renewable resources are the strongest, most consistent, and most concentrated, and where development would avoid protected areas and minimize the overall impact on wildlife habitat.

Among the study’s findings:
 
• Wyoming and New Mexico could be areas of robust competition among wind projects aiming to serve California and the Southwest.
• Montana and Wyoming could emerge as attractive areas for wind developers competing to meet demand in the Pacific Northwest.
• Wyoming wind power could also be a low-cost option for customers in Utah, which also has its own diverse portfolio of in-state resources.
•  Colorado is a major demand center in the Rockies and will likely have a surplus of prime-quality wind potential in 2025.

For more information, visit www.nrel.gov.