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MICRO-HYDRO, WIND TURBINE, AND FUEL CELL APPLICATIONS
The MX60 is designed to work with solar arrays. Although it will work with micro-hydro and fuel cell,
OutBack Power Systems can only o er limited technical support for these applications because there is
too much variance in micro-hydro and fuel cell generator speci cations. When used for micro-hydro or
fuel cell applications, the MX60 warranty will be honored only if the manufacturer and turbine model
have been approved by OutBack Power Systems. Please check with one of the following manufactur-
ers or OutBack Power Systems before employing the MX60:
Harris Hydroelectric
(831) 425-7652
www.harrishydro.com
Alternative Power & Machine
(541) 476-8916
www.apmhydro.com
Energy Systems & Design
(506) 433-3151
www.microhydropower.com
The MX60 is not compatible with wind turbine applications and OutBack cannot warranty its use in
these applications.
MICRO-HYDRO AND FUEL CELL SYSTEMS PERFORMANCE OPTIMIZATION
Micro-hydro and fuel cell systems are di erent than PV systems, whose Voc output is more subject to
change due to weather and time of day. A PV system normally nds its Maximum Power Point voltage
between 50-90% of its Voc. The default value for the MX60 is 77% of a solar array’s Voc and is displayed
on the Park Mpp screen. A microhydro or fuel cell system’s MPP voltage can be outside of this range.
The MX60 allows a user to experiment and nd more appropriate set points to best capture the MPP
voltage. If the output current is under ve amps, Auto Sweep will park the voltage using whatever
percentage value is displayed in the Park Mpp screen. Otherwise, Auto Sweep begins sweeping the Voc
output and works its way down until the optimum percentage of input voltage yields the MPP voltage.
If U-Pick % Voc is chosen, the MPP is calculated by whatever value is found in Park Mpp, even if it’s not
the optimal value for determining the MPP voltage. For this reason, OutBack normally suggests leaving
the system in Auto Sweep mode and the 77% default percentage value, but recommends experiment-
ing with changing this value when a micro-hydro or fuel cell system is in use.
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