Welcome to the Northern Arizona Wind & Sun Solar Electric Store
Northern Arizona Wind & Sun is one of the pioneer solar power companies, and has been in the solar electric business since 1979. We stock a complete range of solar panels, inverters, deep cycle batteries, and hundreds of other DC power and solar power related products.** 2009 is our 30th anniversary - 1979 to 2009. ** -- There is no Arizona state sales tax on solar panels or solar electric systems (local taxes may still apply). -- Think those "other" solar panels are cheaper? Check what they charge for shipping before you decide for sure -- Shipping Costs: To see a shipping quote, put the items in your cart, go to first Checkout page, and enter your ZIP code.
The Xantrex XW Solar Charge Controller (XW SCC) is a photovoltaic (PV) charge controller that tracks the electrical maximum power point of a PV array to deliver the maximum available current for charging batteries. When charging, the XW SCC regulates battery voltage and output current based on the amount of energy available from the PV array and state-of-charge of the battery.
The XW SCC can be used with 12, 24, 36, 48, and 60-volt DC battery systems and is able to charge a lower voltage battery system from a higher voltage solar array. For example, the XW SCC can charge a 12-volt battery from 20 to 140 volt arrays. This provides flexibility for installers to use longer wiring runs without compromising efficiency. The XW Solar Charge Controller can be installed (in single or multi-unit configurations) with Xantrex XW Hybrid Inverter/Charger(s) or can be used in other solar energy systems where a solar charge controller is needed.
The XW SCC incorporates a dynamic Maximum Power Point Tracking (MPPT) algorithm designed to maximize energy harvest from the PV array. The MPPT constantly adjusts the operating points of the array to ensure it stays on the maximum power point. It does not stop energy harvest to sweep the array like some other competing products. This feature is beneficial all sunlight conditions, especially in areas with fast moving cloud cover and quickly changing solar conditions.
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