How To Offer Finance For Energy Storage Systems

The plain-English meaning of customer finance

Customer finance means giving your buyers a way to spread the cost of an energy storage system (ESS) over time, rather than paying the full amount upfront. In practice, you present monthly payment options at the point of sale, and a lender provides the credit once the customer is approved. For UK ESS sellers, this can turn a technically compelling solution into a commercially workable purchase, especially as storage moves from a niche add-on to an essential part of modern energy infrastructure. Global forecasts point to energy storage scaling dramatically by 2035, and UK project finance milestones show lenders are increasingly comfortable with well-structured storage assets, which helps normalise storage-related finance conversations across the market.

Standout line: If the customer can understand the payback, finance makes the decision easier to sign.

Why buyers choose finance for storage projects

Energy storage purchases are rarely impulsive. Whether it is a commercial battery tied to demand management, a microgrid upgrade, or a co-located solar plus storage build, customers are balancing resilience, bill savings, carbon goals, and operational risk. As GB storage markets mature, revenues and benefits can come from multiple sources, not just one headline value stream. That complexity often creates a gap between “this makes sense” and “we can commit capital this quarter”. Finance bridges that gap by aligning payments with the period in which benefits are realised. It can also support projects where the commercial endpoint must be clear early on, such as contracted arrangements versus more merchant-style exposure.

How finance typically lifts conversions and order values

Offering finance can increase sales because it changes the comparison customers make. Instead of weighing a large capital outlay against other priorities, they consider an affordable monthly figure against expected savings, avoided downtime, or improved energy resilience. It also reduces deferral, the common outcome when decision-makers want the solution but cannot justify a lump-sum payment within the current budget cycle. In maturing GB markets, where customers increasingly look at hybrid and co-located solutions, finance can help you sell a better-designed system rather than a compromised one. That tends to lift average order values and can improve margin, because you are less forced into discounting simply to hit a target price.

Typical transaction values in the UK market

What you can fund: common ESS-related sales

1. Battery energy storage systems (standalone)

2. Co-located solar plus battery packages

3. Inverters, EMS controls, and monitoring software bundled with the system

4. Switchgear, protection, and grid-connection enabling works

5. Microgrid projects and resilience upgrades (critical power support)

6. Retrofit battery additions to existing PV installations

7. Ongoing maintenance plans when packaged as part of a financed proposal

FCA and compliance: the essentials to get right

If you are offering finance to customers, you must consider how financial promotions are presented, ensure affordability and suitability steps are handled by the lender or appropriately authorised parties, and avoid giving regulated advice beyond your permissions. Many UK businesses operate as introducers, passing customer details to a broker or lender and letting the regulated firm manage the credit process. Keep advertising clear, accurate, and balanced, including representative examples where required, and ensure staff are trained on what they can and cannot say about credit.

Introducer and broker models, explained simply

Most ESS suppliers do not want to become a regulated credit provider, and they usually do not need to. An introducer model allows you to generate more sales while a specialist broker manages the lender panel, application flow, and compliance framework. Your role is to present finance as a payment option and introduce the customer at the right moment, typically after needs are confirmed and a system has been specified. The broker then matches the case to an appropriate lender and product type, whether that is a consumer-style instalment loan, a business loan, or a more structured facility for larger projects. This matters in storage because bankability often hinges on clarity around offtake, regulation, and revenue assumptions, so it helps to have a finance partner used to assessing different project shapes.

Customer journey: a practical step-by-step flow

1. Qualify the requirement: confirm load profile, objectives (savings, resilience, carbon), and whether the project is standalone storage or hybrid/co-located.

2. Build the proposal: specify system size, installation scope, warranties, and optional O&M.

3. Present payment options early: show cash price and monthly equivalents side-by-side.

4. Introduce the finance route: collect consent to share details and confirm basic eligibility.

5. Application and checks: the customer completes the application; the broker or lender runs credit and any required documentation steps.

6. Decision and offer: the customer receives approved terms, reviews them, and accepts.

7. Install and verification: you deliver the project as agreed and provide completion evidence if needed.

8. Payout and aftercare: the lender pays out according to the agreed process; you support commissioning and handover.

Getting started with Kandoo

Kandoo helps UK businesses offer finance in a way that fits real-world selling. We work as a retail finance broker, so you can introduce customers to a finance option without turning your team into underwriters. The practical starting point is to identify your typical deal sizes, customer types, and the products you sell most often, then map those to appropriate finance routes. Once set up, you can embed finance into quotes and proposals so customers see monthly affordability alongside technical performance. Done well, finance becomes part of how you explain value, not an awkward add-on at the end.

Next-step suggestions:

• Add a “from £X per month” line to your proposals for your three best-selling ESS packages.

• Train sales staff on compliant language: explain cost and process, not likelihood of acceptance.

• Track outcomes: enquiries, applications, approvals, and uplift in average order value.

FAQs

Q: Is offering finance only relevant for big commercial batteries?

A: No. Smaller behind-the-meter projects can benefit just as much, particularly where customers are bundling solar plus storage or need to protect cashflow.

Q: What types of finance are commonly used for ESS sales?

A: For smaller purchases, fixed-term instalment loans are common. For SMEs and larger projects, business loans or structured facilities may be more suitable, depending on documentation and risk profile.

Q: Will finance slow down my sales process?

A: It should not, provided the application flow is integrated and expectations are set early. Presenting finance options at proposal stage typically reduces delay caused by internal budget approvals.

Q: What should we avoid saying to stay compliant?

A: Avoid suggesting guaranteed acceptance, encouraging customers to borrow beyond their means, or implying finance is “free” unless it truly is. Keep statements fair, clear, and not misleading.

Q: How do hybrid and co-located projects affect financing?

A: They can improve the case when the commercial logic is coherent, but they may require clearer documentation because benefits and revenue streams are more layered than a single-service model.

Q: Why does the wider storage market matter to an installer or supplier?

A: Market maturity influences buyer expectations and lender confidence. As storage becomes a mainstream, infrastructure-style asset class, finance options tend to broaden and standardise, which supports smoother sales.