Automotive sized wound field alternators, most with special components using rheostat control. Brush and bearing replacement is recommended yearly under continuous use. Available in 12, 24, and 48 volt DC.
Similar to group 1 except truck size alternators using larger bearings. Available in 12, 24, and 48 volt DC. Brush and bearing replacement is recommended at two year intervals under continuous use. Several brushless versions are available
Our best performing class of wound field rheostat controlled alternators having excellent output characteristics. Up to 3300 watt potential at 48 volt. Available in 12, 24, 48, and 120 volt DC.
Model 1032 PM: An entry level permanent magnet alternator. These are single phase and have about the same efficiency as the large frame Ford alternators that have been used for years. Very low maintenance and easy to use and install. They perform best for 12 and 24 volt DC applications but can be used at 48 and 120 volt DC and also wild frequency 120 to 480 volt AC for long distance transmission using a step down transformer/rectifier unit sold separately. We have built a number of these for dedicated loads like base board heating units. 500-750 watt maximums are possible depending on voltage. Electrically isolated with outdoor PVC junction box for maximum safety.
Model 1038 PM: An entry level permanent magnet alternator featuring a 3-phase stator offering 20-30% more output than a comparable wound field unit. Available in 12 to 480 volts AC or DC. The AC models are wild frequency for use with a step down transformer/rectifier for long distance transmission to a battery based system. The step down unit is sold separately. They are MPPT controller compatible. Electrically isolated with outdoor PVC junction box. Magnet strength is adjustable but rarely needed and not usually supplied. Some have reconfigurable stators for applications with highly variable flow rates. 900-1100 watt maximums are possible depending on voltage. This model group is similar to Powerspout output and efficiencies but made better.
Model 1000 PM: This is an enhanced version of model 1038 featuring a stronger magnet rotor which can improve efficiencies in some of the lesser applications and increase maximum potential to almost 1200 watts. 12 wire reconfigurable stator.
Model 1200 PM: This is an enhanced version of model 1000 featuring a thicker stator which can improve outputs and efficiencies up to 1350 watts in some of the better applications. 12 wire reconfigurable stator. This model group is very similar to outputs and efficiencies found on the Harris and ES & D designs
Model 1400 PM: This is an enhanced version of model 1000 featuring the thickest stator possible which can improve outputs and efficiencies up to 1700 watts in the better applications. 12 wire reconfigurable stator. This model is comparable to the Harris and ES & D permanent magnet units for efficiency and power level. This model is comparable to the Harris and ES & D permanent magnet units for efficiency and power level.
Model 1800 PM: This is the next step up after model 1400. Physically larger alternator exhibiting some impressive efficiencies. 12 wire reconfigurable stator. Outputs in excess of 1800 watts are possible. Not appropriate for the smallest hydro sites.
Model 2500 PM: This is similar to model 1800 except with an exotic magnet rotor for the highest possible outputs within that size constraint. This model is not suitable for hydro sites with less than 1000 watts of site potential.