REopt Models Economic Viability of High-Penetration Renewable Energy in Alaska Village
As part of the Remote Communities Renewable Energy (RCRE) partnership, NREL used the REopt® model to analyze cost-optimal pathways to achieving a combined 75% reduction in diesel fuel and fuel oil consumption in an Alaska Native village. The RCRE partnership is a U.S. Department of the Interior initiative that aims to help remote communities served by isolated, diesel-powered microgrids reduce their fuel consumption and lower their very high energy costs through the use of high-penetration renewable energy.
In addition to modeling the existing diesel generator and fuel oil heating technologies, the REopt model was able to select from among wind, battery storage, and dispatchable electric heaters to meet the remote village’s electrical and thermal loads. The results indicated that while 75% fuel reduction was technically feasible it did not appear to be economically viable at the time of the analysis. When the fuel-reduction target was relaxed, however, the results indicated that by installing high-penetration renewable energy, the community could lower its energy costs by 21% while still reducing its fuel consumption by 54%.
NREL technical report: Tariff Considerations for Micro-Grids in Sub-Saharan Africa
NREL presentation: Kokhanok Renewable Energy Retrofit Analysis
NREL conference paper: Cost-Optimal Pathways to 75% Fuel Reduction in Remote Alaskan Villages
NREL poster: Energy System Modeling with REopt
Department of the Interior
University of Alaska Fairbanks (Alaska Center for Energy and Power)
Colorado State University Engines and Energy Conversion Laboratory
Unalakleet Valley Electric Cooperative