SOL · 01 · Solar for farms, mines and industry

Your power bill keeps rising. Solar stops it.

We build solar plants for farms, mines, factories and commercial property. You stop renting power from Eskom and start making your own, at a price that does not go up every year. One South African team designs it, builds it and runs it.

SOL · 02 · This is a money decision

Power costs rise. Solar fixes the price.

Electricity is a cost you rent and can never control. Solar turns it into an asset you own. Your power price stops moving, and the money you were losing to increases stays in the business.

12.74%
Eskom direct tariff rise · 2025
~8.76%
Eskom direct tariff rise · 2026
Above inflation
Every year for the last 17 years
SOL · 03 · A rough number, right now

Move three sliders. Get a rough payback.

Tell us what you spend, what your site looks like and where you are. You get the plant size that fits and roughly how fast it pays back. A ballpark to start with, not a quote.

Indicative · illustrativeActual yield depends on site, shading, tariff & load
R 450,000
Big roof
Typical

Indicative only — actual yield depends on site, shading, tariff and load. Assumes a plant built to power your own site, replacing grid energy at a blended rate.

Indicative system size
415 kWp
Annual saving · year 1
R 1.6M
Rough payback
2.9 yrs
25-year indicative value
R 72M
SOL · 04 · Free, and no salesperson

Send your bill. We’ll do the maths.

Send one recent bill and we read it for you. We check your tariff, work out what your roof could make, and show the saving in Rands. Free, and nobody phones you unless you ask.

Drop a bill here
PDF or a phone photo. Whole bill or just the summary page. Any South African utility.
PDF · JPG · PNG · up to 10 MB
No bill on your laptop?WhatsApp a photo to +27 76 778 2434 — same analysis, same free report.
SOL · 05 · The same team, all the way

One team builds it. One team runs it.

We design, build and operate the plant ourselves. One number to call, and nobody to blame but us. We keep watching it after handover, so a drop in output is something we spot — not something you discover.

Engineers in hi-vis hard hats inspecting a commercial rooftop solar array at sunset
One team, start to finish · we build the plant and we run it
01

In-house engineering

Our own engineers deliver the flagship builds — design, structural and electrical kept under one roof.

02

One point of accountability

Vetted partners for scale, but the relationship and the responsibility stay with us. No finger-pointing.

03

Conservative yield modelling

We model to a conservative case, not best-case marketing. The forecast is the one we hold to.

04

Watched after handover

Every plant is monitored continuously through EnergyCloud — so drift is caught, not discovered.

PanelsTier-1 — Tesla, JA Solar, Longi, BYD
Guarantee25-year production guarantee
Tier-1Brands banks will lend against
MonitoringEnergyCloud · continuous
InstallStructural sign-off · roof-warranty-safe
LicenceNot needed under 1 MW for own use
SOL · 06 · The part nobody warns you about

Paperwork stops most projects. We handle it.

Getting permission to connect is where most solar projects stall. We deal with the municipality, the registration and the structural sign-off for you, on a timeline we give you up front. You do not chase anyone.

01

Upload a bill

A free assessment off your real tariff and load.

02

Survey & model

Site & structural survey plus a conservative yield model.

03

Proposal

Funding options and an honest payback — no best-case spin.

04

Approvals

We handle the registration and grid connection end to end.

05

Build & commission

Built and commissioned to spec by our own team.

06

Operate & track

Monitored, with savings tracked via EnergyCloud.

Most projects run 3 to 6 months from start to switch-on. We tell you that up front.
SOL · 07 · An example, not a real customer

About 30% off the yearly bill.

This is a worked example of a typical job, not a real customer.* It shows where the money comes back: your own power replaces expensive grid power, your peak draw drops, and we move you onto the right tariff.

Annual energy cost · before vs after · illustrative BeforeAfter
Power bought at peak times
−42%
Energy charge
−15%
Peak demand charge
−20%
Network & fixed
−2%
Annual costR 10.6MR 7.4M
Where the saving comes from
Generation displacing peak grid energyR 2.1M / yr
Demand reductionR 0.7M / yr
Right tariff, work shifted cheaperR 0.4M / yr
~30%Bill reduction
R 3.2MYear-1 saving
Own itAsset on your roof
Illustrative of typical engagements.* Real per-site figures and references shared under NDA.
SOL · 08 · We don’t work for one bank

Five ways to pay. You pick.

Most solar companies offer one way to pay, because that is the only deal they have. We are not tied to a bank or a funder. Buy it, rent it, fund it or pay per unit — whatever suits your books.

Own itBuy it outright
Highest lifetime ROI. You own the asset outright and claim the Section 12B renewable-energy allowance — a full deduction in year one for solar PV under 1 MW, or 50/30/20 across three years above that. The 125% Section 12BA allowance ended for assets brought into use after 28 February 2025. Confirm the treatment with your tax adviser.
Best lifetime ROI
Zero upfrontPay per unit (PPA)
You pay nothing up front. We build the plant and you buy the power it makes, at a rate below what Eskom charges you. Nothing on the balance sheet.
R0 upfront
PredictableRent it monthly
A fixed, predictable monthly cost. Simple to budget, nothing on the balance sheet to manage.
Fixed monthly
BankableLet a bank fund it
Structured across the major SA banks — FNB, Standard Bank, ABSA and Nedbank. You own the asset, the bank funds the build.
Major SA banks
BlendedMix and match
Blend the above to optimise tax and cash flow — part-owned, part-funded, shaped to your year.
Best of both

"Won't this lock me in?"

Terms are flexible. Exits and buyouts exist, and ownership is always on the menu.

"Do I lose the upside?"

You can own it and keep the full benefit — the upside stays yours.

"What if I sell the building?"

Contracts are portable. The plant and its terms move with the deal.

"Is my site even suitable?"

The bill upload tells you before you spend a cent.

"What's your catch?"

Equipment margin, an optional software subscription, and flagship project margin — stated plainly. No hidden take.

SOL · 09 · Anyone can quote. Few last ten years.

We’re still here in year ten.

Quoting a plant is easy. Keeping one running for its whole life is not. We earn while your plant performs, so we stay involved long after the invoice is paid. Registered with NERSA, B-BBEE Level 2, based in Durban.

Aerial view of a utility-scale ground-mount solar farm on open grassland
Built to last · designed to run for 25 years

Thank you Terawatt Solar for the installation of our solar panels and generator. We found your staff to be extremely helpful and efficient. Our system is up and running smoothly.

Trevor Budde · Managing Director Graft Gear

15 years operating

A track record you can reference — not a brochure.

Not tied to one funder

Buy it, rent it, pay per unit or let a bank fund it — we quote the one that suits your books.

Tier-1 panels & 25-yr guarantee

Tesla, JA Solar, Longi, BYD — backed by a 25-year production guarantee.

Roof-warranty-safe install

Structural assessment first; the install protects your roof warranty.

References under NDA

Real per-site numbers and contactable references, shared privately.

We operate, not just install

Monitored through EnergyCloud, with savings tracked after handover.

SOL · 10 · Start with one bill

Send one bill. See your number.

Send one recent bill. We show you what solar takes off it, in Rands. Free, written answer, no sales pitch.

Phone087 550 1531
WhatsApp+27 76 778 2434
Emailhello@terawatt.co.za
Based inDurban
See what solar erasesFree · 30 s
Upload a bill
Free report · one-business-day written response · POPIA-compliant · no sales pitch
Instant AI analysis · free · POPIA-compliantUpload one bill — see your saving in plain Rands.
Upload a bill