Solar Battery Storage
Store energy to use on rainy days!
We always recommend having a battery when you decide to install solar panels. Energy generated by the sun can be stored to use in the evenings after dark, or on cloudy days.
Essentially a battery allows you to ‘timeshift’ your usage, which means you get the most out of your investment. Some people use their battery to sell back power to the National Grid, via an appropriate tariff e.g. Octopus Agile (link) at the ‘heavy use’ periods eg. C4pm-8pm each day. This can produce extra savings for those who have enough time to look into it.
Extra power can also be converted into energy to run your air source heat pump and warm your house during periods when your tariff is at a higher price. Again, it’s about ‘timeshifting’.
FAQs
Q: How do I claim back money from the National Grid?
A: When we install your system, we will send details of your installation and your MPAN number to the National Grid. They will generate a new MPAN number to share with your energy company so that you can start using a flexible tariff. This enables you to use energy generated in the day during the night, when energy is cheaper on some tariffs. We can help you to choose an energy company and tariff that is right for you.
Q: Is it worth buying further batteries?
A: If you are exporting a significant amount of power generated by your solar array, and you are a heavy user (eg. you have a heat pump), adding another battery will save you money. Don’t forget, a battery has two charge cycles every day; one during the day from the solar panels, and a night-time charge off your cheap night rate tariff. Thereby allowing two opportunities for significant savings.
Q: How do I find out more about solar battery storage?
A: Our friendly and knowledgeable team are happy to explain and answer any questions you may have.