Solar & Backup Power Decision Tool

They reflect typical 2026 South African market values — installed prices including labour. Actual quotes will vary based on equipment brand (Sunsynk, Victron, Deye, Growatt all price differently), installer mark-up, roof complexity for solar panels, and battery technology (lithium is more expensive than lead-acid but lasts far longer). Use our ranges as a sanity check before getting quotes. Always get three written quotes from registered installers before committing.

A basic backup (R15-40k) is a small inverter and battery that runs essentials like lights, WiFi, TV, laptop, and your fridge through typical Stage 2 to Stage 4 load-shedding. Mid-range backup (R40-100k) is bigger — handles more appliances for longer outages, still no solar. A hybrid system (R120-250k) adds solar panels that charge the battery during the day and reduce your Eskom bill. Full off-grid (R250k+) is designed to run independently of Eskom indefinitely, with a substantially larger battery bank and solar array.

For a basic backup system using a portable inverter and a battery in a roll-around case, no — renters can absolutely buy and use these, and take them when they move. For an installed system (mid-range and up), you need either ownership or written landlord consent, plus a registered installer to issue a Certificate of Compliance (CoC). For grid-tie solar (hybrid systems that can feed back into the grid), you also need municipal SSEG registration. Check your municipality's specific SSEG process.

CoC stands for Certificate of Compliance — proof that your installed electrical system meets South African safety standards. It's issued by a registered installer after the installation is complete. Without it, your insurance company can decline claims for anything that goes wrong (fires, equipment damage, etc.). SSEG stands for Small-Scale Embedded Generation — the municipal registration required when your solar system can feed surplus power back into the grid. Each municipality has its own SSEG process and tariff structure. Hybrid and off-grid systems generally require it; backup-only systems usually don't.

Portable plug-in backup systems (small inverter plus battery in a roll-around case) — yes, those are designed for DIY use. Installed inverter and battery systems require a registered electrician for safety and insurance reasons. Solar panel installations specifically require a qualified solar PV installer registered with the Department of Labour. DIY installations of installed systems void your home insurance, can't be issued a CoC, and risk municipal fines if not properly SSEG-registered. Always use registered installers for anything beyond plug-in backup.

For a hybrid system, payback is typically 5 to 10 years in South Africa, depending on your current Eskom bill, your municipality's electricity tariff, how much sun your roof gets (north-facing roofs are best), and your daily consumption patterns. Off-grid systems take longer to pay back because they include significantly more battery capacity. Note that as Eskom tariffs rise — they've gone up roughly 50% over the past 5 years — payback periods get shorter and solar becomes more financially attractive over time.

SARS introduced a Section 12B individual tax rebate for residential solar PV installations — currently allowing individuals to claim 25% of the cost of new and unused solar panels (up to a cap) against their personal income tax. The detailed rules change year to year, so confirm the current scheme with your tax practitioner or via the SARS website before assuming you qualify. Note: the rebate applies to panels specifically, not the inverter or battery in most current schemes.