Tell us what it’s about and it goes straight to the right engineer. You get a written answer within one working day. No call centre, no sales script.
Already have a bill to hand? Send it through instead and we will tell you free what solar or a battery would save you.
The form above is the quickest route to an engineer. If you would rather phone or message, these all reach the same team.
Terawatt was founded in 2011 and we are based in Durban. We build solar plants and battery storage for farms, mines, factories and commercial property, and we write the software that tracks what they save.
Most energy companies sell you the hardware and leave. We design the plant, build it, and then keep running it. The same engineers stay with your site for its whole life. That is the only way anyone can honestly promise you a payback.
We are registered with NERSA, the energy regulator, and we are a B-BBEE Level 2 contributor. Every site we have built is on the projects page — named companies, real installations, across South Africa.
Six steps, and we tell you up front how long each one takes. Most projects run three to six months from the first call to switch-on.
We read it and tell you, free, what solar or a battery would save you. About 30 seconds, and nobody phones you unless you ask.
An engineer walks your roof or your yard and checks what will actually fit, and what it will cost to put there.
Against your real half-hourly load, not a rule of thumb. This is the step that decides whether the numbers hold up.
The system, the cost, the saving, and the ways you can pay for it. Buy it, rent it, pay per unit or let a bank fund it.
The municipality, the registration and the structural sign-off. This is where most projects stall. You chase nobody.
Built and commissioned by our own team, then monitored so we keep tracking what it saves you, month after month.
Tell us about your site or your bill. We'll come back inside one business day, in writing — no sales pitch.
One of the engineers will be in touch inside one business day. If it's urgent, call +27 87 550 1531.
Thanks — now send the bill. EnergyCloud reads it, works out your tariff, and models what a Terawatt build would save on your real consumption.