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11
April 2021
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Solar Stik
®
, Inc.
PRELIMINARY DRAFT
24VDC HyPR 3000 Operator and Maintenance Manual
Load Prioritization
In every operation mode, the HyPR will prioritize power to the load. It executes functions based on
real-time operating conditions, which include:
• total power available at the INPUTS
• total power needed at the OUTPUTS
• battery SOC
• temperature
• user programming for special conditions
HyPRs can be used with grid-utility or generator AC power, and can easily be adjusted to operate
within the current limits of both the AC load circuit and the external AC power source.
When operating a HyPR with multiple DC power sources connected (e.g., PV, Wind, vehicular, fuel
cells, etc.), all incoming power will be prioritized to the load, reducing consumption of energy stored
in the batteries, thereby extending battery-only runtime and the reducing need for AC power from a
grid-utility or generator source.
When operating a HyPR with a fuel-driven generator(s), the AGS circuit can be used to start the
generator(s) when the battery SOC is low. Once the battery SOC reaches a user-determined point,
the HyPR AGS circuit will start the generator, ensuring power to the load. In effect, the HyPR uses a
connected generator as the last line of defense against mission failure.
With load prioritization, the load will always be the first to receive power. Any incoming power not
consumed by the load is stored in the batteries. Stored energy is for use to support loads when
these inputs are not available (e.g., grid failure, generator maintenance periods, etc.) and to reduce
reliance on fuel-powered generators.