Residential solar & battery storage
Custom-designed home solar systems that reduce or eliminate your Eskom dependence. Grid-tied, hybrid and off-grid options available.
ENGINEERED ENERGY RESILIENCE
Rising Eskom tariffs. Unreliable grid power. A grid that can no longer be counted on. SA Solar exists to solve this: for individual homeowners, commercial operators, industrial facilities, farms and utility-scale developers alike.
01 / WHO WE SERVE
Whether you're a homeowner wanting to cut your monthly electricity bill, a business looking to control operating costs, or a large-scale developer requiring full project management from feasibility to commissioning, SA Solar has the experience and capacity to deliver.
THE NETWORK YOU SIT ON
This is a linearised load flow of the national transmission network, solved live in your browser. Raise the load-shedding stage, trip a corridor, or put your own site on solar and battery, and every flow on the diagram re-solves.
Load-shedding stage
Your site
Click any line to trip it. If a remaining branch then exceeds its rating, its overload relay operates 1.2 seconds later and it trips too: a cascade, exactly as an N-1-1 contingency study models it.
Modelled, not measured. DC load flow on a 26-bus reduction of the national network, 100 MVA base. Topology and ratings are representative, not Eskom's operational data.
02 / WHAT WE ACTUALLY BUILD
A solar system is eight engineered decisions stacked on top of each other. Get one wrong and the savings case fails quietly, years later. Select a layer to read how we specify it.
03 / OUR SOLUTIONS
Custom-designed home solar systems that reduce or eliminate your Eskom dependence. Grid-tied, hybrid and off-grid options available.
Large-format solar systems for businesses, warehouses, factories and commercial properties. Engineered to offset peak demand and maximise ROI.
Solar-powered irrigation, pump systems and farm energy solutions. Designed for yield, reliability and the demands of agricultural operations across Southern Africa.
Robust hybrid and off-grid energy systems built for remote sites, mines and operations where grid power is unreliable or non-existent.
Standalone and integrated battery storage for load shifting, backup power and grid independence, from household scale to utility-scale deployments.
Complete microgrid solutions for industrial parks, estates, agricultural hubs and remote communities. Engineered for reliability and long-term performance.
Commercial and fleet EV charging solutions, integrated with your solar system to reduce charging costs and futureproof your operations.
Before we design anything, we understand your energy use. Our audits identify where you're losing money and how solar can solve it.
Large-format solar parks, wind integration and renewable energy projects for IPPs, municipalities and enterprise clients.
WHAT THE GROUND GIVES BACK
Sweep along the back of the module. Every hairline is a ray that reached the ground and came back; the ones missing were blocked by the next row. That is the entire argument for row pitch, and it is solved here, live.
Ground cover
132 rays per sample over the rear hemisphere, Lambertian ground, bifaciality 0.70, GHI 1000 W/m². Row geometry is the plant in the hero: 6.5 m pitch, 4.4 m chord, 1.9 m torque tube.
04 / THE NUMBERS
We provide detailed financial modelling as part of every proposal. This is the same arithmetic, running live, so you can see the shape of the case before you speak to us.
Indicative only. Figures assume a well-oriented array at 1 650 kWh/kWp/yr, 0.5% annual module degradation, and installed costs typical for each scale. Real proposals are modelled against your actual tariff structure, load profile and site constraints, including demand charges, which are not represented here. Section 12B tax treatment is not included.
05 / HOW WE WORK
We start by understanding your usage, tariff structure, site constraints and goals, whether you're a homeowner or a facility manager. No assumptions. No generic proposals.
Our in-house team designs a system around your actual needs. Correct sizing, quality components, optimised for savings and long-term performance.
Professional installation by qualified electricians and certified solar engineers. We work to deadline, communicate throughout, and take responsibility for the outcome.
Full system commissioning, documentation and training. You understand what you have, how it works, and what to expect.
Monitoring, maintenance and warranty management. We remain your energy partner long after installation.
06 / SOUTH AFRICAN CONDITIONS
South Africa holds one of the strongest solar resources measured anywhere on earth. What differs by province is how much of it a system can actually convert, which is why we size against local irradiance, not a national average.
Selected province
Hover or select a province to compare its solar resource. Marked points are the major load centres we design against.
Irradiance
—
Specific yield
—
10 kWp array
—
Provincial averages from public irradiance data, converted at a performance ratio of 0.80. Site-specific yield is modelled per project.
07 / WHY SA SOLAR
We will not win work by undersizing or cutting corners. We win it by doing the job properly, and by being straight with you about what solar can and cannot do for your site.
GET STARTED
Whether you need a residential system for your home or a utility-scale solution for your operation, our team has the experience to get it right.
BUILT OUT OF SQUARE EDGES
The bridge switches a DC bus fully on or fully off, thousands of times a second. What you see below is that switched waveform, the filter solving it into a sine, and a live Fourier transform of the result. Raise the switching frequency and watch the harmonic sidebands march away from the fundamental.
Sine-triangle modulation, one LC output stage integrated at 8× oversampling, 1024-point radix-2 FFT written by hand. Distortion is measured off the spectrum.
PROOF BY LISSAJOUS
Put the grid on one axis of an oscilloscope and the inverter on the other. In step, the trace is a diagonal line. Out of step it opens into an ellipse, and if the frequencies differ at all the whole figure rotates — at exactly the difference between them. The phase angle shown is measured off the figure.
Phosphor decay and velocity-dependent beam brightness are both modelled, which is why the turning points are brightest.