Comparison from Sunsurf Solar
PPA or own your solar installation?
A PPA (Power Purchase Agreement) is a long-term electricity contract in which the customer buys renewable electricity directly from a producer at a predictable, fixed price — without investing in the installation itself. The alternative is to buy and own the installation outright. Below is a criterion-by-criterion comparison of the two models so you can pick the right one for your business. Last updated: 24 April 2026.
Criterion by criterion
Both models deliver local, renewable electricity. The difference is in who invests, who owns the electricity and who carries the risk.
Initial investment
01PPA: no investment — Sunsurf Solar builds, owns and finances the installation. Ownership: the customer funds the full installation upfront, typically several million SEK for a 100+ kWp system.
Ongoing cost
02PPA: the customer pays only for the electricity consumed at a fixed per-kWh price for the contract term. Ownership: after the initial investment the ongoing cost is mainly maintenance, insurance and inverter replacements; the electricity is effectively "free" once payback is complete.
Maintenance responsibility
03PPA: Sunsurf Solar is responsible for monitoring, maintenance, insurance and any repairs throughout the contract term. Ownership: the customer carries full responsibility — in-house personnel or a purchased service contract.
Typical contract length
04PPA: 10–25 years, tailored to the customer's operations. Ownership: no contract term — the customer owns the installation for as long as they want. Panel warranty is typically 25 years; the mounting system has a 40-year technical service life.
End of life / end of contract
05PPA: at the end of the contract the customer can take over the installation, extend the contract, or let Sunsurf Solar dismantle and recycle the system. Ownership: the installation remains owned, sold or dismantled by the owner.
Tax and accounting
06PPA: electricity purchased through a PPA is typically booked as an operating expense. Ownership: the installation is an investment that is depreciated over time and may have other tax implications. Sunsurf Solar is not a tax advisor — please speak to your accountant for an assessment based on your specific business.
Flexibility
07PPA: a fixed per-kWh price gives predictability but locks the customer into the contracted rate. Ownership: the customer has full control over sizing, future expansion and the sale of any surplus electricity.
Who owns the electricity produced
08PPA: Sunsurf Solar produces the electricity, the customer buys it at the agreed price and consumes it directly on site. Ownership: the customer owns every kilowatt-hour produced and is free to use or sell it.
Want to discuss the right model for you?
We help you compare total cost, payback time and risk for both models — based on your electricity consumption and site conditions.
Read about Power as a Service