Off-Grid Systems

Off-grid power systems can result in higher cost energy, but the high cost of extending a power line to a remote location often makes an independent energy system the most cost effective choice for remote homes and equipment. If the average wind speeds at a location are greater than 12 mph, a wind turbine may provide the least expensive form of energy.

Because wind is intermittent, it is often used in conjunction with batteries or with other energy sources, such as a gas generator or solar electric panels, to make a hybrid system. Battery systems can supply the owner with reserve power whenever energy demand exceeds that delivered by the wind turbine. This reserve power comes in handy during calm spells, but in situations where the storage capacity is taxed beyond its limits, a backup system, such as a portable gasoline or diesel generator, may be necessary. By combining two or more sources of energy, the size of energy storage can be decreased.