A standard solar system takes energy from the sun and converts it into electricity which you can use in your house. However, when the sun isn’t shining, your solar system isn’t able to make electricity. So, during the evening or when it’s cloudy, you will be required to buy energy from the grid which can often be at peak prices.
Instead of paying peak prices for electricity and only getting minimal buy back from the grid for the generation of excess power from your solar system, having a battery storage system means you can store this unused electricity and use it when you need it. This is called self consumption and will save you even more money!
With the reduction of the high price feed in tariff and the ever rising price of electricity, self consumption is fast becoming the most effective way to save on your power bill.
During the day, when the sun is shining, any excess power which is produced is put into charging the battery for later use. If you begin to use more energy than your solar can produce, your battery will begin to discharge to fill the power gap which you would normally pay for from the grid. When the sun goes down at the end of the day, the battery will take over and supply the house with power during the peak power period, which can often have charges of up to $0.50/kWh.
Most inverters, which are battery compatible now, have a backup function. This means that if there is a black out at anytime, day or night, your home will switch over to using the energy stored in your battery. Gone are the days of finding the flash lights, lighting candles or getting a generator to power the house during a power outage.
Off-setting the peak periods of power usage with a battery storage system can yield big savings on your power bill. Rather than paying a premium for your power during the evening, you can use the free energy which was stored from your PV system during the day.
-Long term environmentally friendly investment
Solar power is one of the most environmentally friendly ways to provide energy to your home and with the addition of the battery storage system you can use the clean power from the sun throughout the night. With most batteries offering warranty of 7 – 10 years you can be confident that you’re making a long term investment.