Solar
Engineered
Solar Panel Installation & Battery Backup Systems
Modulus Solar engineers and designs solar and battery systems for residential and businesses calculated to your needs – not sold off a shelf or copy and paste.
2018
Founded
30+
Years combined experience
2,500+
Sunshine hours per year in PE
Our Story
Reliable solar solutions for
homes & businesses
Modulus Solar is a trusted Solar Energy EPC partner and contractor bases in Gqeberha – delivering innovative, cost-effective and sustainable solar solutions for residential and commercial solar installation. From design and procurement to installation and support, we help you take control of your energy future with dependable renewable power.
Founded in 2018, our experienced team brings more than 30 years of combined expertise in renewable energy and IT. We have strong supplier partnerships who share our commitment to compliance; engineering standards; quality; reliability and cleaner energy for a more sustainable future.
Ready to invest in renewable energy? Contact Modulus Solar today to discuss your project.
Our services
Full
turnkey services
Modulus Solar helps clients reduce grid dependence, manage rising electricity costs and invest in clean, reliable renewable energy. From system design and procurement to installation, integration and ongoing support, we provide complete solar solutions tailored to your property, energy needs and budget.
Solar Design & Engineering
Equipment Procurement
Solar Installation
Ongoing Support
why solar
A smarter energy choice for
your property
A well-designed solar system doesn’t just lower your monthly bill — it protects your household from disruption and adds long-term value to your property.
Solar systems in South Africa offer one of the best payback periods in South Africa due to high sunshine hours and rising tariffs.
NMB rates jumped 10.95% in July 2026 — the steepest hike in eight years, with annual increases guaranteed by Nersa.
Lock in your cost per kWh today. Municipality tariff increases can’t touch your solar-generated units.
Ageing NMB infrastructure means unplanned cable faults and cuts — no warning, no timeline, no recourse.
Battery backup switches in automatically when the grid drops. Lights stay on, fridges keep running, Wi-Fi holds.
Over 80% of Eskom’s generation is still coal-fired. Every unit you draw from the grid carries a carbon cost.
Zero emissions at point of use. Port Elizabeth averages 2,500+ sunshine hours a year — among the best solar resources in the world.
our process
Get Started in a few
Simple Steps
From first assessment to ongoing support, we manage every stage with care so you can invest in clean energy with confidence.
Step 01
Consult & Audit
Solar assessment process: We assess your actual consumption before recommending anything. No guesswork – real usage, real numbers.
Step 02
System Design
Sized to your usage, your roof, and your budget. Every system is engineered specifically for your property.
Step 03
Equipment Selection
Quality components chosen for reliability, not just upfront cost. We only recommend what we’d install ourselves.
Step 04
System Installation
Managed end-to-end by our team, with minimal disruption to your property. Clean, compliant, on schedule.
Step 05
Support & Maintenance
A solar system is a long-term relationship, not a one-time sale. We’re here long after install.
systems we provide
Find your
solar system
Every property has different energy needs. Here’s what’s available — and what each one is built for.
Panels feed power directly into your home and export surplus to the municipality. No battery storage — when the grid goes down, so do you.
- Lowest upfront cost
- Reduces your monthly bill significantly
- Eligible for net-metering
- No backup during outages
Best for: Homes wanting bill reduction only
Panels power your home during the day, excess charges a battery, and the battery keeps you running when the grid cuts out.
- Full backup during NMB outages
- Maximise self-consumption
- Seamless switchover — no interruption
- Expandable as needs grow
Best for: Bill savings AND outage protection
Completely disconnected from the municipal grid. Panels charge a large battery bank that powers your home 24/7 — no Eskom, no NMB, no bill.
- Zero municipality dependence
- Ideal for farms or rural properties
- No connection or service fees
- Higher upfront investment required
Best for: Remote properties and full independence
Harness the power of the sun to heat your water with PVTHERM™, the innovative solar geyser that taps into solar energy to give you hot water day after day.
- 60–70% reduction in water heating costs
- SANS 10400-XA complaince
- Works with your existing geyser
- Quick and easy installation
Best for: Cutting geyser costs affordably
Frequently Asked Questions
Common
questions
Answers to what homeowners and businesses ask us most.
A residential grid-tied system typically starts from R60,000–R90,000 for a 5kW installation. Hybrid systems with battery backup range from R120,000–R220,000 depending on battery capacity. Every property is different — we provide a no-obligation quote after assessing your actual consumption and roof suitability.
A typical residential installation takes one to two days once equipment is on-site. From signed quote to commissioning, allow two to four weeks — this includes procurement lead times and municipality notification where required. But we always try our best get it completed as soon as possible without compromising on quality.
Only hybrid and off-grid systems with battery storage will keep you powered during an outage. A grid-tied system shuts down automatically when the grid fails — this is a safety requirement. If backup power matters to you, a hybrid system is what we recommend for most homes.
Solar panels still generate electricity on overcast days — typically at 10–25% of peak output. A hybrid system draws from the battery bank when generation is low, and falls back to the grid as a last resort. Gqeberha averages over 2,500 sunshine hours per year, so extended low-generation periods are uncommon.
Most residential systems in NMB achieve payback in five to eight years, depending on system size, your current tariff and consumption. With the 10.95% NMB tariff increase effective July 2026 — and annual increases projected — the payback period is shortening. A well-sized system delivers 20–25 years of savings beyond the payback point.
Ready to invest in
solar energy?
Book a free site assessment. We assess your roof, your bill and your usage before recommending anything — no obligation, no hard sell.