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Battery Storage In Scotland: Costs, Savings And Realistic Run‑Times
Thinking about installing a home battery in Scotland and wondering what it really costs, how much it saves, and how long it will run your home? This guide explains typical sizes, pricing, and real-world performance for Scottish households. You will see how time-of-use tariffs work, what to expect in winter versus summer, and whether adding a battery to existing Solar PV is worth it.
What is home battery storage?
A home battery stores electricity so you can use it later. You can fill it with your own solar generation or charge it from cheap off-peak rates, then use that stored energy during peak times making huge savings. Most battery systems are installed outside and with a compact battery and inverter, blend into the environment. Many set-ups include an app that shows charge levels, savings, and lets you schedule charging for off-peak periods.
Typical battery sizes for Scottish homes.
5 kWh, suits small homes or flats with low to moderate evening use.
7 to 10 kWh, the most common range for a typical 2 to 4 bedroom home.
13 to 15 kWh, for larger households or where you want to cover longer evening peaks and occasional backup.
How much does battery storage cost in the UK?
For residential systems in Scotland, broad guide pricing including supply and install typically sits in these ranges:
5 kWh home battery storage, from around £3,500 to £5,000 depending on brand, inverter type, and installation complexity.
7 to 10 kWh, from around £4,500 to £7,000.
13 to 15 kWh, from around £6,500 to £9,000.
These are guide figures. Actual pricing depends on equipment choice, cable runs, whether your consumer unit needs upgrades, and whether scaffolding or external works are required and more importantly, what infrastructure the company installing has behind them. The Greener Roof Co provides free estimates so you can get project specific costs, and can offer finance from 6.9%, to be confirmed at your survey.
How time-of-use tariffs create savings
Smart tariffs usually divide the day into price windows. You can chose to charge your battery up overnight at a low rate, then use that energy during the morning and evening peak times when prices then rise. If you already have Solar PV, the battery soaks up surplus generation during the day, then covers your evening use.
Key points:
- Off-peak charging, fill your battery when electricity is cheapest.
- Peak shaving, discharge during the expensive morning and evening slots.
- App control, many systems let you set charge and discharge times to match tariff windows.
- Even without solar, a battery can reduce bills by shifting usage away from high-rate periods. With solar, you add the benefit of capturing daytime generation that would otherwise be exported at a lower rate.
How long will a 10 kWh battery power a house?
In a typical Scottish home during the evening, expect around 4 to 7 hours. If you are very efficient and avoid heavy appliances, you could stretch it. If you cook, tumble dry and run an electric shower, it will be shorter.
Winter versus summer, what daily life looks like
On a winter day, it has less hours of daylight and higher use. Often you will charge overnight on a cheap tariff, top up a little from any midday solar, then discharge through the evening peak. Typically a 7 to 10 kWh battery often covers the busy 4 pm to 9 pm window, however larger batteries help push coverage later into the night.
On a summer day, it has more daylight hours and lower heating demand. Your Solar PV may fill the battery by late morning or early afternoon. You then run the home through the evening from stored solar and might still hold charge for the following morning peak. Export may still occur if your battery fills and use is low.
Is battery storage worth it in Scotland?
For many Scottish households, the answer is yes, even without solar, the savings can be significant using time of use tariffs, however when combined with Solar PV it Savings can be very attractive. You can lower bills by shifting consumption away from peak prices and by using more of your own solar. Payback varies with your tariff, system size, and usage profile. If you are on a standard flat tariff with very low consumption, the case is weaker. If you have higher evening use, work from home, or own an EV, the case strengthens.
Is it worth adding a battery to existing solar panels?
Often, yes. Without a battery, a lot of solar generation is exported during the day when you are not home. A battery captures that surplus so you can use it in the evening. You will still be able to export on very sunny days when the battery fills, gaining another income, but overall self-consumption rises, and bills fall. The Greener Roof Co regularly retrofits batteries to existing arrays and integrates control with smart tariffs so you get the best of both worlds.
If you do not have solar, a battery can still make sense on time-of-use tariffs, charging off-peak and discharging at peak. This can be helpful for flats or shaded homes where panels are not feasible.
Finance and next steps
If funding the project is a barrier, then you can spread the cost, with low rate finance from 6.9% subject to status and can be confirmed during a free in home assessment. During the assessment we size the system to your usage patterns, discuss tariff options, and place equipment where it fits neatly with minimal disruption. Our team is praised for tidy installs and smart-tariff integration, including automated charge and discharge settings that target morning and evening peaks.
If you are comparing options in the central belt, our team also provides end-to-end solar and battery guidance. If you are in the east coast or west coast or even up north, you can learn more about what The Greener Roof Co offers by visiting our website for solar panel installers Edinburgh, solar panel installers Glasgow, or solar panel installers Aberdeen which covers on-roof and integrated solar and battery storage.
So, Is battery storage worth it in Scotland, often yes, particularly with Solar PV or a smart tariff, where you can shift usage away from peak rates and use more of your own generation.
Is it worth adding a battery to existing solar panels, in most cases, yes. It raises self-consumption and reduces bills, especially in homes that are out during the day.
Ready to see what a battery can do for your home in central Scotland? Book your free, no-obligation estimate with The Greener Roof Co today. We will confirm pricing, warranties, planning, and finance options at your survey, and design a system that fits your home and your routine. Click Here
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