This product is made to order with a 7-10 days lead time.
The Kestrel e400nb micro wind turbine is fitted with a mechanical band brake that will stop the turbine safely in severe wind conditions. The brake is activated by a simple manual operation at the base of the tower.
Electricity produced by the turbine is processed by an electronic inverter and fed into the grid. The electricity supply is preferentially wind power and any shortfall during peak demand is supplied by the grid. The end user's energy bill is therefore reduced by the amount of wind energy harvested.
This wind turbine comes standard with Kestrel’s patented pitch control. The blade pitch angle is adjusted automatically in high wind speeds, thereby ensuring maximum power output while reducing the thrust force on the turbine.
The Kestrel e400nb is rated at 3.5kW and, being a high-quality machine, has a mass of 250kg with a blade rotor diameter of 4m.Â
Certifications
The Kestrel e400nb 3.5kW small wind turbine is the first of its type to be MCS (Microgeneration Certification Scheme) certified. Therefore, it is UK Government approved and qualifies for the Feed-In Tariff (FIT). It is also certified with the North American Small Wind Certification Council (SWCC). The incentives to install wind energy in the US include tax credits, interest-free loans, and FIT schemes.
For MCS certified performance, please refer to the following summary report.
Technical specifications
| Note: Performance may vary with |
Battery Charging
|
Grid Tied
|
| Site Conditions and Weather Pattern |
Manufacturers Data
|
MCS/BWEA Reference
|
SWCC /AWEA Rating
|
| Maximum Power |
3500W (Peak turbine) |
2990W |
- |
| Rated Power @ 11m/s (24.6mph) |
2500 (At battery) |
2550W |
2.5kW |
| Rated Annual Energy |
4000 |
3922kWh |
3930kWh |
| Rated sound Level |
56dB(A) |
Lp,60m: 57dB(A) |
55.6dB(A) |
| Cut-in Wind Speed |
<span"></span">3.25m/s |
3.25m/s |
3.25m/s |
| Generator Type |
Permanent-magnet |
Permanent-magnet |
Permanent-magnet |
| Overspeed Protection |
Pitch Control |
Pitch Control |
Pitch Control |
| Rotor Diameter |
4m (13.1ft) |
4m (13.1ft) |
4m (13.1ft) |
| Number of blades |
3 |
3 |
3 |
| Blade Material |
Epoxy Resin Fibreglass |
Epoxy Resin Fibreglass |
Epoxy Resin Fibreglass |
| Tower Top Mass |
250kg (551lb) |
250kg (551lb) |
250kg (551lb) |
| Tower Height |
12-18m (39-59ft) |
12-18m (39-59ft) |
12-18m (39-59ft) |
| Tower Type |
Monopole |
Monopole |
Monopole |
| Output Voltage (Turbine) |
48Vdc or 110Vdc * |
250Vdc |
250Vdc |
| Controller Type |
Midnite Solar |
Power One Aurora |
Power One Aurora |
| *Voltage limiter required for 110Vdc |
Classic 200 |
ABB Uno-DM 4kW and Sunsynk 8kW |
ABB Uno-DM 4kW and Sunsynk 8kW |
| Output Voltage (System) |
24/48/72Vdc |
230Vac 50Hz |
240V 60Hz |
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Tower Specifications (Sold separately please request for quote before purchase)
- Tower Height: 12 - 18m.
- Tower Type: Monopole.
