SOLAR POWERED SYSTEM WITH GRID BACKUP
First Claim
1. A method comprising:
- receiving power from a solar array;
using the received power from the solar array to charge a battery;
applying power from the battery to power multiple loads;
monitoring power consumed by loads; and
supplying a reduced power to selected loads as a function of power received from the solar array and available battery power.
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Accused Products
Abstract
A system includes a solar power subsystem that receives power from one or more solar power arrays. A storage control subsystem is coupled to the solar power subsystem to charge a battery from the power received by the solar power subsystem. A grid power control subsystem having an AC to DC converter receives power from a power grid and provides DC voltage to the storage control subsystem. A balance of system control system controls the amount of power received from the power grid as a function of a load, battery charge and received power by the solar power subsystem. The solar array and battery may be sized to provide sufficient power under normal operating conditions, with power being drawn from the grid during abnormal operation conditions.
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Citations
20 Claims
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1. A method comprising:
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receiving power from a solar array; using the received power from the solar array to charge a battery; applying power from the battery to power multiple loads; monitoring power consumed by loads; and supplying a reduced power to selected loads as a function of power received from the solar array and available battery power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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receiving power from a solar array; using the received power from the solar array to charge a battery; applying power from the battery to power multiple loads; monitoring a battery drain rate; determining expected power to be received from the solar array; determining if the battery has sufficient available power to power the loads prior to the solar array providing power to sufficiently power the loads and recharge the battery; and supplying a reduced power to selected loads as a function of power received from the solar array and available battery power.
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12. A method comprising:
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determining total power requirements for multiple loads for operation during normal operating conditions; determining sizes for a solar array and a battery to provide sufficient power to the loads during normal operating conditions; selecting a controller to control providing power to the loads and charging battery such that power is drawn from a grid connection during operation outside normal operating conditions; monitoring power from the load, wherein the load comprises multiple loads; and supplying a reduced power to selected loads as a function of power received from the solar array and available battery power.
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13. A system comprising:
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a solar power subsystem that receives power from one or more solar power arrays; a storage control subsystem coupled to the solar power subsystem to charge a battery from the power received by the solar power subsystem; a battery monitor to determine if the battery has sufficient power to power multiple loads; and an application control subsystem to monitor power needed by the loads, and to provide a reduced power to selected loads as a function of power received from the solar array and available battery power. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification