Wind Turbines
Bergey XL.1 2.5 m (8.2 ft.) Diameter 1000 W at 11 m/s (25 mph) 5.2 kWh / Day Nominal	Bergey Excel-R 3.2 m (10 ft.) Diameter 7.5 kW at 12 m/s (27 mph) 6.5 kWh / Day Nominal	Bergey Excel-S 7 m (23 ft.) Diameter 10 kW at 14 m/s (31 mph) (Battery Charging:  7.5 kW) 35 kWh / Day Nominal
By Application: Grid-Connection
10 kW - Bergey Excel-S, with GridTek 10 Power Processor - 240 VAC, 60 Hz or 220 VAC, 50 Hz, Single Phase
By Application: Battery Charging
5 kW, Bergey Excel-R, with OptiCharge regulator - 24, 48, 120, or 240 VDC 1 kW, Bergey XL.1, with PowerCenter integrated controller - 24 VDC only
By Application: Water Pumping
10 kW, Bergey Excel-PD, PCU-10 controller - 240 VAC, Variable Frequency, Three Phase

Towers (Hint:  A tower too short is like putting a solar system in the shade) Guyed-Lattice Pro: Best Value Pro: Easy Install, with crane Con: Guy Wires Available Heights: 12-37m (40-120 ft) 1.5 & 10 kW Only Best for 1.5 & 10 kW Tilt-up, Tube Pro: Easy Install, without crane Con: Guy Wires Available Heights: 9-32m (30-104 ft) 1.5 kW Only "SSV" Type Pro: No Guy Wires Pro: Good Looks Con: Higher Costs Available Heights 18-37m (60-120 ft) 10 kW Only Tilt-up, Lattice Pro: Lowers in hurricane or typhoon Pro: Installs without crane Con: Higher Costs Available Heights: 18-30m (60-100 ft) 10 kW Only  Misc. Electrical Equipment Tower Wiring Kits These kits included a disconnect switch, special tower wire, and a lightning surge arrestor. They make installation easier and more "professional". DC Power Centers The Power Center provides a convenient and safe method of connecting all of the various Direct Current sources (e.g., wind & solar), battery strings, and loads (e.g., inverters & DC distribution panels) together. On the BWC Excel-R the Power Center can be integrated with the OptiCharge controller. On the BWC XL.1 the Power Center comes standard.