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Hybrid wind & solar systems provide more consistent year-round
performance and reduce the need for back-up generation. We highly
recommend wind and solar hybrids for smaller systems.
We
recommend this package for homes, schools, clinics and other smaller
off-grid applications. These systems are
also easily retrofitted to existing diesel-only systems in order to save
fuel and provide up to 24-hour power.
The solar modules are Photowatt 24 VDC, 90 W modules designed to mount
directly to the wind turbine tower. No separate mounting structure
is required. Two modules are used to provide 180 W of solar capacity. The modules can be placed well above the
ground for security or to solve a shading problem. The XL.1's
PowerCenter provides voltage regulation and can handle up to 600 W of
solar.
The BWC Hybrid.System stores excess energy in batteries for use during low
wind periods. It can also charge the batteries from a back-up generator. With a manually controlled back-up generator
the Hybrid.System can provide up to 24-hour/day power.
The Tubular Tilt-up tower can be installed
without concrete and they tilt-up after all the assembly work is done on
the ground. The 60 ft. tower in this package is the most common height
used for the XL.1 turbine. For sites with trees, taller towers are recommended.
These tower are available in height up to 100 ft.
The batteries are Trojan T-105's, a workhorse of the home power industry
and an excellent value. A total of eight individual batteries are connected in two
parallel strings of four batteries in series (24 VDC nominal). This
battery bank will supply up to several days of power without wind energy
input. The Magnum Energy MM1524AE modified-sine-wave inverter
provides 120 VAC (or 230 V, 50 Hz) and includes battery-charging and transfer
relay functions. A back-up engine generator can be easily
integrated, but the automatic start function is an extra-cost option for
the inverter (inquire).
In addition to the equipment costs given below, a complete
installation will typically include the following costs:
shipping, sales tax, permit costs, foundation and anchoring (some
soil types), wire
run, turbine and tower erection, battery racks or vault, electrical hook-up, and inspection fees.
Some users also incorporate a back-up gas, propane, or diesel
generator into the system for extended periods of low wind speed. Your dealer or Bergey WindPower can assist you in budgeting these
additional costs. For budgeting purposes, these costs typically
range from $2,000 (customer installed, no sales tax, etc) to $8,000
(Certified Dealer, sales tax, etc).
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