Solar panels generate most of their electricity during the day — but most homes use most of their electricity in the evening. Without storage, that mismatch means a lot of the power you generate gets exported back to the grid for a relatively small payment, only for you to buy electricity back later at the full rate. A home battery closes that gap, storing your surplus daytime generation so you can use it when you actually need it.
Princeton Eco Plus supplies and installs solar battery storage systems for homes across the West Midlands, Worcestershire, and Staffordshire, working with leading battery brands to match the right system to your solar setup, household usage, and budget.
A home battery connects to your solar PV system (or, in some cases, directly to the grid) and stores electricity as direct current (DC) energy, ready to be drawn on later. During the day, any electricity your solar panels generate but don't immediately use is directed into the battery instead of being exported to the grid. In the evening, when your panels have stopped generating but your household demand is often at its highest, the battery discharges that stored energy to power your home — reducing how much you need to buy back from your supplier.
Many modern battery systems also support smart, tariff-aware charging, meaning they can charge from the grid during cheap off-peak periods as well as from solar, and some can provide backup power during a grid outage, keeping key circuits running when the power goes down.
Panels generate more than the home needs. Surplus flows into the battery instead of the grid.
Panels stop generating. Stored energy powers the home instead of buying from the grid.
Adding a battery is usually the single biggest upgrade you can make to how much value you get from solar you already have — or are about to install.
Instead of exporting surplus generation for a modest payment and buying it back later at a higher rate, you store and use it yourself.
The more of your own generated electricity you use, the less you need to buy from your supplier.
Reduces your exposure to future increases in electricity tariffs by relying less on the grid.
Many systems can charge from the grid during the cheapest overnight rates, saving money even outside solar hours.
Selected battery and inverter combinations can keep essential circuits running during a power cut.
Several of the brands we install use modular designs, so capacity can be expanded later as your needs grow.
Modern LiFePO4 batteries are built for thousands of charge cycles, typically with 10-year warranties.
If you already have — or are installing — solar PV, a battery is usually the biggest upgrade to how much value you get from it.
We fit a genuine choice of battery brands rather than pushing a single product — during your survey we'll talk through which is the best fit for your solar setup, property, and budget.
A modular battery module offering around 11.5 kWh of usable capacity per unit, using stable lithium iron phosphate (LFP) cell chemistry. Stackable to roughly 23 or 34.5 kWh, rated for outdoor installation, floor-standing or wall-mounted.
An all-in-one battery and inverter unit with 13.5 kWh of usable capacity, built for straightforward installation and solar integration. App-based monitoring tracks generation, storage and usage in real time.
A modular, all-in-one energy system combining solar inverter, battery and (on compatible models) EV charging in a single platform. AI-assisted charging via the mySigen app shifts usage around your tariff automatically.
Tell us about your existing (or planned) solar system and your household's typical energy usage.
We check your solar inverter setup, available installation space, and usage pattern to determine the best-fit battery size and brand.
Based on the assessment, we recommend a battery capacity and brand suited to your goals — self-use, tariff savings, or backup power.
Our engineers install the battery, associated wiring, and any required inverter or gateway components.
The system is tested and commissioned, with a full walkthrough of the monitoring app so you can track your savings from day one.
We provide a clear, itemised quote once we understand your solar setup and goals — there's no generic figure that applies to every home.
We install a genuine choice of battery brands rather than pushing a single product, so the recommendation you get is based on what suits your home and usage — not what we have the most stock of. Our team can advise on combining battery storage with a new or existing solar PV installation for the best overall return.
Most home batteries are designed to work alongside solar PV, storing surplus generation, though some setups can also charge from the grid on a cheap overnight tariff. We can advise on the best option for your situation during your survey.
This depends on the system — our brands range from around 6 kWh modules up to 13.5+ kWh units, and several are stackable for even greater capacity if needed.
Some battery and inverter combinations support backup power for key circuits during an outage, though this typically requires additional components. We'll confirm what's possible for your specific setup.
Modern lithium iron phosphate batteries are typically rated for thousands of charge cycles, with most brands offering around a 10-year warranty.
In most cases, yes — retrofitting a battery to an existing solar PV system is a common upgrade, though compatibility with your current inverter will be checked during the survey.
It depends on your priorities — capacity, budget, backup power needs, and whether you want an all-in-one system or a modular one. We'll talk through the right fit for your home rather than recommending a single default option.
Energy crises are no fun. But sadly, heating costs have become so high that by 2022 her 1,000 households in the UK will either be forced to live in damp and cold conditions or face the financial burden of utility bills. will be Princeton Eco Plus Ltd. cannot stop the energy crisis. But we can help soften the blow to struggling families across the UK.
