Will Your Lights Go Out? 3 Reasons Domestic Battery Storage May Suit You

With the recent announcement by the National Grid that this winter the UK will get perilously close (within 1.2%) of full electricity generating capacity this winter, it makes you wonder what you would do if the power did temporarily go out due to the grid not being able to cope. Doesn’t it?

What would you do to keep the lights on in your home and would you invest in technology to reduce or eliminate the risk?

Eliminate the risk

One of the ways this unfortunate event could be tackled is by using a battery backup system and this week we help to explain some basics about the technology and list 3 top ways these systems could benefit you.

Modern battery systems are popularly made from Lithium-Ion, providing higher energy density than more traditional Lead acid batteries, and store excess electricity allowing controlled discharge during times when electricity is required but the source is no longer available.

The batteries are just half the story and whilst they continue to become cheaper to buy it is the system controllers which manage how energy is sent and extracted from the battery that complete the picture. These controllers allow batteries to safely interact with the other electricity supplies and electrical circuits in a modern home ensuring the battery power is efficiently managed.

So what could you use battery backup systems for and how could they benefit your home?

Our Top 3 Domestic Battery Uses

1. Power cuts

Domestic battery and control systems can help to give you protection against power outages. For power cuts a battery system would allow you to keep the light, fridge, internet, tv and a whole other raft of appliance still going for a good while after the mains electricity has gone off. Depending on the size of the battery installed depends on how long you can keep these critical appliances working for.

These mains backup battery systems aim to act as an ‘uninterruptable’ backup and as such the appliances within the home will see a continuous flow of electricity as the battery system takes over.

 2. Night time use of your free solar electricity

If you have a solar photovoltaic (PV) system installed you can use electricity your system has generated for free at night. What if you could use the excess free electricity created during the day? Batteries can do exactly that and store excess free electricity and make sure you are not wasting it by sending it back onto the mains grid.

3. Optimising time-based energy tariffs

Finally, for some it may make sense to store low price electricity and use it when electricity rates are high during other parts of the day. It must be said this works particularly well on the Continent but less so in the UK, however the idea still stands. Why not store electricity when its cheap and then use the stored energy when you are on a  higher tariff?

So as you can see there are some handy ways to use battery systems in the home. There is an increasing list of product choices available and we will cover this area in more detail in subsequent blogs.

Do feel free to leave us any comments about your experience of battery systems and any other ideas about how to use them.

Doug Johnson

Doug is a chartered mechanical engineer and has had the pleasure of being involved in the UK renewable sector since 2008. With wide-ranging operational and design experience in both the domestic and commercial sectors across a wide range of recognised technologies he hopes to be able to share his experience to help enlighten and save you hassle along the way.