Are batteries worthwhile with solar?v

 

When most people think of storing solar energy they think of batteries and rightly so. Batteries are a great way to store solar energy. Batteries are not the only way to store the energy we can also store solar energy as heat, an easy way to do this is in hot water.

If you have a solar system without energy storage the system works like this:

  • When solar power is being produced it will supply your home appliances requiring electricity.
  • If the solar power amount is less than what your appliances require, then the rest will be pulled from the grid.
  • If more solar power is being produced than your appliances need, then the excess will be sold to the grid.

Battery storage

Batteries can be added to any existing solar system. They can store excess energy produced by your solar system and also provide back up power during an outage.

By adding batteries to your solar system, the battery replaces the grid in the points above and the system works like this.

  • When solar power is being produced it will supply your home appliances requiring electricity.
  • If the solar power amount is less than what your appliances require, then the rest will be pulled from the battery. If the battery is empty or cannot supply the full load then the rest will still be pulled from the grid as a last resort.
  • If more solar power is being produced than your appliances need, then the excess will be stored in the battery. If the battery is full then the excess power will go to the grid as a last resort.

By adding batteries to a solar system you making yourself much more self-sufficient. More of the electricity in your home will come from the sun. Batteries will allow you to have back up power in a power cut. The high-end systems will switch you over from grid power to battery power in a split second, you won’t even notice the grid is out.

The return on investment for the battery system is currently quite long. The ROI is in the region of 10-15 years.

The best reason to consider a battery is if you want to increase your self-sufficiency and make sure you are protected in a natural disaster, storm or general power outage.

To find out more about a solar system with batteries or to add a battery to your solar system click here

Hot water storage

It is also possible to store any in a hot water cylinder by using a hot water diverter.

The diverter works much like a battery, but instead of storing energy in the battery, energy is stored in the hot water cylinder as heat. The heat energy is then used when you have a shower, fill the sink up or do a wash.

By adding a hot water diverter to your solar system, the diverter uses excess electrical energy from the solar system and turns it into heat stored in the hot water tank.

  • When solar power is being produced it will supply your home appliances requiring electricity.
  • If the solar power amount is less than what your appliances require, then the rest will be pulled from the grid. The hot water will not be turned on when there is no spare power available.
  • If more solar power is being produced than your appliances need, then the excess solar power will be turned into heat and stored in the hot water cylinder. The diverter will regulate the amount of power going into the cylinder, to ensure minimal power is drawn from the grid.

The better hot water diverters have thermostats to monitor the water temperature. If the water temperature drops below a preset temperature, the cylinder will turn on to avoid you getting any cold showers.

If you are interested in installing batteries then fill out the form below and one of our team will get in touch with you to see how we can help.