icon The HOMER Software

HOMER Energy conceptual diagramHOMER is a computer model that simplifies the task of designing hybrid renewable microgrids, whether remote or attached to a larger grid. 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 variations in technology costs and energy resource availability. Originally designed at the National Renewable Energy Laboratory for the village power program, HOMER is now licensed to HOMER Energy.

Simulation, Optimization, Sensitivity Analysis

HOMER provides the detailed rigor of chronological simulation and optimization in a model that is relatively simple and easy to use. It’s adaptable to a wide variety of projects. For a village or community-scale power system, HOMER can model both the technical and economic factors involved in the project. For larger systems, HOMER can provide an important overview that compares the cost and feasibility of different configurations; then designers can use more specialized software to model the technical performance. 

HOMER is accessible to large set of users, including non-technical decision makers. Chronological simulation is essential for modeling variable resources, such as solar and wind power and for combined heat and power applications where the thermal load is variable. HOMER’s sensitivity analysis helps determine the potential impact of uncertain factors such as fuel prices or wind speed on a given system, over time.

HOMER models both conventional and renewable energy technologies:

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

Click here to see screen shots from HOMER 2.

Click here to try HOMER free for 2 weeks at no cost. You will be asked to create an account, but no credit card is required.