Commercial solar and battery storage · since 2010
Buy power when it’s cheap. Use it at peak.
Solar and battery storage for mines, shopping centres and factories. We design it, fund it, build it and run it.
Filmed at Stibium Mine, Limpopo: 5,068.1 kWp, commissioned 8 May 2025.
How a battery pays for itselfSince 2010 we have designed 345 MW across 450+ projects, built 20 MW, and still run 18.2 MW of it across 28 sites.
Battery storage
The price of electricity changes all day. A battery lets you choose when you buy it.
One weekday on a time-of-use tariff
Supplying the site
The battery replaces grid power while it costs the most.
It buys low and supplies high
The battery charges overnight or from your own solar, then carries the site through the peak periods, when grid electricity costs the most.
It trims your demand charge
Short spikes in load are met from the battery, so the peak demand you are billed on comes down.
It keeps the solar you cannot use
Midday generation the site cannot absorb is stored for the evening instead of being lost.
Savings are metered, not assumed. MeterX Online, a related metering company, meters and verifies plant savings every month.
Battery storage in detailFlagship · Gravelotte, Limpopo
Five megawatts for a mine, built in the bushveld.
8,814 modules feeding Stibium Mine alongside grid and generator power.
Stibium Mine, June 2025: the finished plant, commissioned 8 May 2025.
- Capacity
- 5,068.1 kWp
- Annual production
- 8.74 GWh
- Performance ratio
- 83.10%
- Commissioned
- 8 May 2025
Our work
Plants we built, and still run.
How it works
From your bill to a working plant.
- 1
Send a recent electricity bill
That, and the site address, is all we need to start. No site visit.
- 2
Get a free desktop proposal
We model the site from satellite imagery and your bill: solar size, battery size, savings and funding options.
- 3
Site visit and final design
Only once the numbers work and you want to go ahead.
- 4
We build it and run it
Our teams build and commission the plant, then operate and maintain it, with production and savings reported monthly.
What is your monthly electricity bill?
Pick the closest range and tell us where the site is. We will come back with a desktop proposal, free and with no obligation.
Funded options generally suit sites spending R100,000 a month or more.
Funding
Fund it, or own it.
Funded: no capital outlay
A funder pays for the plant. You pay for the energy it delivers at a rate below your current tariff, with operation and maintenance included for the term.
How funded solar worksCapex: own the plant
Buy the plant outright and keep all the savings. Section 12B allows the cost of a solar plant to be deducted in the first year.
Compare funding modelsClients
“SolarXgen developed a 5MW solar solution for our mine's power requirement.”
“SolarXgen have provided us with a dedicated deployment partner in the C&I space, delivering exceptional projects for our funded clients.”
Director, Jaltech
“Our motor divisions at Toyota and Isuzu all generate clean renewable energy — developed by SolarXgen.”
General Manager, TWK Motors
“SolarXgen was professional & timeous in the construction of First Car Rental's solar system.”
HOD Executive, First Car Rental
Who we build for
