From the simulation overall results, for a given hybrid system : consisting of six 600 kW wind machines and three diesel units (for wind speed of 3.91 m/s at 10 m, diesel price of 0.1 US$/liter, 40 m hub-height), there is a capacity shortage of 230 kWh (as viewed in the electrical sheet/window of the simulation results). In fact, all hybrid system

I do not understand the usefulness of the Maximum annual capacity shortage. Which are the common values for this parameter for a small turbine of 300W? The most common value for the maximum annual capacity shortage is zero. If you set that value to zero, you are saying that the power system must meet 100% of the electric load, plus the require

Are all of the components modeled with equal accuracy or were some way off requiring a different modeling approach? HOMER cannot model all components with equal accuracy. Batteries are the most difficult component to model. The HOMER documentation clearly states all of the equations and assumptions used in the modeling. We have found that uncert

I'm encountering something with my diesel generators, and I am wondering if there is a setting I can adjust. In my model, there are many times when the wind resources is large enough that the wind turbines can meet the complete electrical load. In this situation, the optimization shuts the diesel generators off completely. However, for stabili

HOMER does not optimize the system taking into account the sizing of elements. The optimization is more concerned with the total cost of the project, i.e. it looks for the cheapest feasible system. It means that the user must have a first accurate knowledge of the system he wants to implement and that HOMER won't optimize for example whether a fuel

You can't calculate a system if it's undersized In fact, you can allow the system to supply less than 100% of the electric load. The principal constraint in HOMER is the maximum capacity shortage constraint, which by default is 0% meaning the system must fully supply the electric load plus and required operating reserve. But you can set that