HOMER: The Micropower Optimization Model

    Research output: NRELFact Sheet


    HOMER, the micropower optimization model, helps users to design micropower systems for off-grid and grid-connected power applications. HOMER models micropower systems with one or more power sources including wind turbines, photovoltaics, biomass power, hydropower, cogeneration, diesel engines, cogeneration, batteries, fuel cells, and electrolyzers. Users can explore a range of design questionssuch as which technologies are most effective, what size should components be, how project economics are affected by changes in loads or costs, and is the renewable resource adequate.
    Original languageAmerican English
    Number of pages2
    StatePublished - 2004

    NREL Publication Number

    • NREL/FS-710-35406


    • battery
    • diesel
    • hybrid power
    • life-cycle cost
    • micropower
    • off-grid power
    • photovoltaics (PV)
    • renewable energy (RE)
    • software model
    • solar energy
    • wind energy


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