Category: Explainer | Read time: 6 min
Solar gets all the headlines, but an increasing number of UK homeowners are asking a simpler question: can I just get the battery? The answer is yes. And with a subscription model that removes the upfront cost, the question of whether it's worth it becomes much easier to answer.
There are plenty of good reasons to opt for battery storage without solar. Perhaps your roof isn't suitable. Perhaps you rent and can't make structural changes. Perhaps you want to reduce your bills now and consider solar later. Or perhaps you simply don't want to spend £10,000+ on a combined system when a battery alone can deliver meaningful savings.
Whatever the reason, a standalone battery is a legitimate, effective, and increasingly popular choice — and PowerBase is built specifically around this use case.
PowerBase stores electricity when prices are lower - typically overnight on off-peak tariffs - and makes that stored energy available during higher-priced periods in the day. The battery charges and discharges automatically. You don't adjust your lifestyle; you just use energy as normal and pay less for it.
Off-peak electricity (typically between 11pm and 6am) can cost as little as 7p per kWh. Peak daytime rates regularly reach 28–35p per kWh. A battery that bridges that gap turns a real price difference into real monthly savings.
For a traditional battery purchase, "worth it" depends on a payback calculation - typically 6–8 years. You spend £5,000–£8,000 now and hope to recoup it through savings over time.
With PowerBase, the question is simpler: does the monthly saving exceed the monthly subscription cost? Based on the example PowerBase shares on their website - a household saving around £60/month net of the subscription - the answer for many homes is yes, from month one.
There's no large sum to recoup. The system either saves you more than it costs each month, or it doesn't. PowerBase confirms which applies to your home before installation.
Even without solar, a grid-charged battery can reduce your carbon footprint. The UK grid's carbon intensity is significantly lower overnight, when renewables - particularly wind - account for a higher proportion of generation. By charging at these times, you're using greener electricity than you would during the daytime peak.
This depends on the system specification. If backup power during outages is important to you, raise it when you're going through the PowerBase eligibility and sizing process - our team can advise on what's available for your home.
One of the less-discussed costs of owning a home battery is the ongoing management - keeping software updated, ensuring the system is optimised for your current tariff, dealing with any hardware issues.
With PowerBase, all of that is included in the subscription. The battery is monitored and optimised continuously, and if something needs replacing, it's covered.
This is a meaningful difference from a purchase model, where the ongoing responsibility is yours.
PowerBase confirms eligibility before installation. The first step is a quick home check - a few questions and some photos of your fuse box - after which PowerBase recommends the right battery size and provides a personalised savings estimate. If the numbers don't work for your home, you'll know before any commitment is made.
Find out if PowerBase is worth it for your home at www.powerbase.energy