NREL


HOMER  HOMER Graphs


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HOMER is a computer model that simplifies the task of evaluating design options for both off-grid and grid-connected power systems for remote, stand-alone, and distributed generation (DG) applications. HOMER's optimization and sensitivity analysis algorithms allow you to evaluate the economic and technical feasibility of a large number of technology options and to account for variation in technology costs and energy resource availability. HOMER models both conventional and renewable energy technologies:

Power sources:
• solar photovoltaic (PV)
• wind turbine
• run-of-river hydro power
• generator: diesel, gasoline, biogas, alternative and custom fuels, cofired
• electric utility grid
• microturbine
• fuel cell
Storage:
• battery bank
• hydrogen
 
Loads:
• daily profiles with seasonal variation
• deferrable (water pumping, refrigeration)
• thermal (space heating, crop drying)
• efficiency measures

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You can download and use HOMER for free. You must be a registered user to download the software. When you install HOMER, you automatically receive a free six-month license, which you can renew for free an unlimited number of times. To register, click Log On / Register on the left navigation and complete the registration form.