Financing Batteries and Backup Power for Energy Security

Energy security is no longer optional for South African businesses. Load shedding, grid instability and rising tariffs make backup power a core part of operations. Batteries sit at the centre of that resilience, but a quality storage system carries serious capital cost. Battery finance lets a business install the backup it needs and pay for it over time.

This guide covers what battery finance funds, which structures suit storage, the tax angle, and how installers can offer it through one application.

What is battery finance?

Battery finance is a funding arrangement that lets a business acquire energy storage and backup power equipment and pay for it across the years it uses the system, rather than upfront.

Batteries are productive assets. They keep operations running through outages and can shift energy use to cheaper periods. Because the asset delivers measurable value, lenders can fund it on terms that suit the client's cash flow.

For installers, battery finance turns a large quote into an affordable monthly commitment. That removes the single biggest barrier to closing storage deals: the upfront price.

What backup power equipment can be financed?

Battery finance covers equipment, not general business costs. The financeable items typically include:

• Battery storage systems
• Inverters and hybrid inverters
• Power quality equipment
• Generators
• Solar PV, where bundled with storage

These can be funded on their own or as part of a larger solar-plus-storage project. Where a system combines panels and batteries, the same finance application can cover the whole package. For the energy structures available, see solar finance structures compared.

Which finance structures suit batteries?

Definition: a finance structure is the contractual shape of the deal, setting who owns the asset and how the client pays. Three energy structures apply to batteries and backup power.

• Asset Finance, 3 to 7 years. The client owns the asset and pays it off over the term. This is the route to ownership and to the Section 12B tax benefit.
• Rent-to-Own, 5 to 15 years. The client rents the system over a longer term and takes ownership at the end, keeping instalments lower.
• PPA, 10 to 20 years. A funder owns the system and the client pays for the energy or service delivered.

ArkFlow also supports Solar-as-a-Service and evergreen rentals for clients who prefer an ongoing service model. To choose between ownership and usage models, read PPA vs Rent-to-Own.

Is there a tax benefit to financing batteries?

Yes, where the deal is structured as Asset Finance and the client owns the asset. Section 12B(h) allows an accelerated, 100% deduction on qualifying renewable assets.

Under Asset Finance, because the client owns the equipment, qualifying renewable assets can attract the Section 12B(h) accelerated deduction. Clients may also access I-REC (carbon) income and interest and operations-and-maintenance tax shields, depending on their circumstances.

Tax treatment depends on the client's own position and professional advice, but the structure matters: ownership-based Asset Finance is what unlocks the Section 12B route. We explain this in full in the Section 12B solar tax deduction.

How does the battery finance process work?

ArkFlow uses one guided process across all asset classes:

1. You propose an indicative finance proposal. The client accepts.
2. ArkFlow onboards you with the relevant lenders.
3. The client completes a guided, step-by-step finance application.
4. The deal is prequalified and KYC-checked, then packaged for the bank.
5. Offers come back, the client selects one, the contract is drafted and the first milestone payment is released.

There are three funding routes: the client's own bank, your own lenders, or the ArkFlow lender network. Major South African banks that can fund deals include FNB, Absa, Standard Bank, Nedbank, Investec and Capitec.

What does it cost the installer to offer battery finance?

Nothing upfront. ArkFlow's owner account is free forever for installers, with no card required.

The platform adds 1% of capex to the bill of quantities where a deal funds through its lender panel, billed as the bank releases funds. You add the 1% to your bill of quantities or quote. No funded deal means no fee.

Backup power is one of the easiest finance conversations to have right now, because the need is obvious. Sign up free and start offering funded battery and backup power systems. If your clients also face water risk, see water finance in South Africa.

Frequently asked questions

Can batteries be financed without solar panels?

Yes. Battery storage, inverters, power quality equipment and generators can be financed on their own. They can also be bundled with solar PV in a single application.

Which structure gives the lowest monthly payment?

Longer-term structures like Rent-to-Own (5 to 15 years) or a PPA (10 to 20 years) generally spread the cost over more time, which can lower the instalment. The trade-off is total cost and ownership, which depends on the structure and lender terms.

Do battery finance figures count as a credit offer?

No. Indicative proposal figures are indicative only and not a credit offer. The lender performs formal underwriting before any binding offer is issued.

Does battery finance qualify for Section 12B?

Qualifying renewable assets under ownership-based Asset Finance may attract the Section 12B(h) deduction. The client should confirm eligibility with their own tax adviser.