A battery storage quote checklist helps you compare proposals without choosing by the headline price alone. Two similar-looking packages may cover different equipment or different installation work. Therefore, start by checking what each proposal actually includes.
At Home Energy Group, we want your questions to lead to a useful conversation. This guide explains what to ask about equipment, installation scope and handover. It does not set a standard price or promise a particular outcome.
First, give each installer the same household information. Include your electricity use, existing solar equipment and what you want storage to achieve. Then compare their written answers. Missing information is a question to resolve, not something to assume is included.
Battery storage quote checklist: identify the equipment
Ask for the controller model, battery model and number of batteries in writing. Also, check what the quoted capacity describes. A clear equipment list makes it easier to spot differences between proposals.
The Energy Saving Trust's battery guidance explains that capacity is measured in kilowatt-hours, or kWh. It also says there is no exact formula for choosing a battery size. Consequently, ask why the recommended capacity fits your circumstances.
For example, ask what electricity-use information the installer considered. If you want more background, read our solar battery sizing guide. However, keep the comparison focused on the proposed system rather than assuming a larger number is better.
Check how the proposal treats your existing system
Next, ask what happens to equipment already installed at your home. Will the existing solar inverter remain, or does the proposal include replacing it? Ask for the reason and any further compatibility checks.
You can explore HEG's AC battery storage packages and solar inverter upgrade route to understand the different conversations. Neither page replaces the assessment of your own installation.
If power-cut support matters to you, say so explicitly. Ask each installer to describe any proposed backup equipment and which uses their design covers. Do not infer that from the battery name or capacity.
Compare installation work and exclusions
A battery storage quote checklist should cover the work as well as the products. Ask where the equipment would go and how the installer would reach that position. Then ask what alterations and making-good work the price includes.
In particular, clarify cable routes, mounting arrangements and access. If you are discussing outdoor equipment, ask the installer to specify the proposed arrangement. A picture alone does not confirm that a location or enclosure is appropriate.
Also, ask who handles any required approvals and paperwork. Where something needs checking, the proposal should make that uncertainty clear. Finally, ask what circumstances could lead to additional work and how changes would be agreed.
Read the price breakdown before deciding
The RECC consumer journey recommends obtaining at least three quotes and checking the paperwork before hiring. Its Code sets quotation standards for Code Members within its stated scope. Those standards are not evidence that every standalone battery purchase has the same protection.
For your own comparison, request a written breakdown of equipment and services. Check how the proposal shows applicable taxes, exclusions and any separately charged monitoring or maintenance. However, do not assume that an unexplained item is free.
Keep the quote date and validity period alongside your notes. If an installer changes the scope, compare the revised documents rather than mixing an earlier total with newer equipment.
Ask about handover and support
Before agreeing, ask which documents you will receive and when. These questions can cover operating instructions, commissioning records and relevant certificates. Also, ask how the installer will explain the controls.
Next, check the support contact and what ongoing services, if any, the proposal includes. Ask for the manufacturer's terms for each named product, rather than relying on one blanket warranty statement.
Our Hanchu ESS support hub provides a route to product information. Nevertheless, your selected equipment and written agreement determine what applies to your installation.
Bring your battery storage quote checklist to HEG
Finally, keep one page of notes: equipment, intended use, installation work, exclusions, outstanding checks and handover questions. Put unanswered points next to each proposal. This makes the next conversation more useful than comparing totals in isolation.
Bring the latest version of each quote and mark anything that you cannot match across them. For instance, one may name the controller but leave the complete installation work unclear. Ask the installer to clarify that point in writing before treating the two offers as equivalent packages.
Use this battery storage quote checklist to get in touch with HEG about your package and ask questions. Call 01535 210050 or email hello@hegrenewables.co.uk. Final compatibility, design, scope and price need confirmation through the survey and written proposal.
Source review: 10 November 2026. This is general preparation guidance, not a product specification, certification promise or substitute for your contract.