Which Solar Battery Size Do You Need?

The term ‘solar battery size’ refers to the battery’s capacity. A battery’s capacity is the maximum amount of energy it can hold at a time. This value is usually measured in Kilowatt-hours (kWh). However, what matters most as a figure is the battery’s usable capacity. This parameter is also called the battery’s depth of discharge limit (DoD). It implies the amount of power you can use without damaging the battery.

For instance, a 6.5 kW battery may have a discharge limit of 6.14 kW. This is the usable portion of the battery. The higher the DoD, the more power you can extract from the battery without recharging it. If you are looking for a solar battery installation in Oxford, you might wonder what battery size is most suitable. Here are some factors you need to consider.

What is the right battery capacity for your needs?

Solar batteries come in several sizes, from 1kWh to 25kWh. So, depending on your needs, you will have to choose carefully and deliberately. Here are some of the factors you need to consider.

The size of your solar panel system

Firstly, you need to consider the total wattage output of the solar panels. Your battery capacity should match this.

Your everyday energy consumption

The second most important thing is your everyday energy consumption. You can calculate it in detail from your smart meter and find the information on your energy bills. Ideally, the solar battery provider might ask for daily and hourly energy usage figures to calculate accurately.

Are you looking to go off-grid?

If you just want a single power supplement, a single battery will suffice. However, if you want to go off-grid, you may need several batteries to ensure you don’t lose power during a harsh winter. Another important determinant in this case is the size of the property. Here, we have presented rough estimates of the energy requirements depending on your property.

Four Bedroom: 10kWhThree Bedroom: 8 kWhTwo Bedroom: 4 kWhOne Bedroom: 2 kWh

From here, you can estimate the lower and upper limits of solar power storage you might need.

Are you having trouble figuring out the right battery size for your needs? Contact G.E.C Electrical Contractors Ltd. We can install all types of solar batteries in Oxford and help you find the perfect battery size for your requirements. Get a quote from us.