Balance Of System Components for Solar PV and Wind Turbines
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Solar PV & Wind Turbine - Balance of System Components
Be it a nice sized solar array or wind turbine high upon a tower, you still need to get that renewable power into a usable format. That means cabling/wiring, fuses, batteries, controllers, inverters, switches, disconnects, meters, etc.
It is important to avoid excessive loss of power from voltage drop in wire from the wind generator to the batteries. It is not necessary to use a wire size that minimizes voltage drop for the maximum generator output. It will be more economical to choose a wire size that gives a 2% voltage drop at the average generator output for your site. If the cost of wiring is excessive, you may want to look at turbines that output power in AC. You then convert it to DC just before connecting to the battery controller. Sending the AC power directly to the grid may also be an option of you have a feed-in tariff or net-metering arrangment with your electrical power provider.
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