Residential
Villa Sidi Bou Saïd
12 kWp PV20 kWh BESS–82% bill
German Engineering · Made for Tunisia
German Engineering.
Sustainable Energy.
Built for Tunisia.
We design and install high-performance solar and battery storage systems that cut your electricity costs and deliver reliable energy independence — from Tunis villas to Sahara farms.
DIN / VDE
German Standards
10+ yrs
European Experience
Tier-1
Premium Components
25 yr
Long-Term Support
About Helio Energy Solutions
German precision meets Tunisian sunshine.
Helio Energy Solutions was founded by two renewable energy engineers with more than a decade of combined experience in the German solar and battery industry — from residential rooftops in Bavaria to megawatt-scale storage projects across Europe.
We bring that engineering culture home: rigorous design, premium components, and installations that outlast the warranty.
- German engineering standards
- European field experience
- Certified expertise
- Local Tunisian support
- Custom system design
- Full lifecycle service
Our Services
Complete solar & storage solutions.
End-to-end services for homes, businesses, farms and remote sites — engineered, installed and supported by our team.
Residential Solar
Rooftop PV systems tailored to your home and consumption profile.
Battery Storage (BESS)
Lithium storage for full energy independence, day and night.
Off-Grid Systems
Standalone solar for remote homes and villas without grid access.
Hybrid Solar + Generator
Solar, storage and backup generator, orchestrated intelligently.
Commercial & Industrial
Rooftop and ground-mount plants for factories and businesses.
Agricultural Pumping
Solar water pumping for farms, greenhouses and irrigation.
Maintenance & Support
Preventive maintenance, monitoring and rapid technical support.
Consulting & Design
Feasibility studies, yield simulations and custom system design.
How it works
Five steps to energy independence.
01
Free Consultation
We understand your goals, load profile and site constraints.
02
Site Assessment
On-site survey, structural check and solar yield analysis.
03
Custom Design
Tailored system with simulations, BOM and financial model.
04
Installation
Certified crew, German workmanship, safety-first execution.
05
Monitoring & Support
24/7 monitoring, maintenance plan and priority service.
Selected projects
Built across Tunisia.
From coastal villas to olive groves and industrial rooftops — every project engineered with the same standard.
Agricultural
Olive Grove Sfax
18 kWp PVDirect-drive pump0 diesel
Industrial
Ben Arous Factory
480 kWp PV250 kWh BESS–61% OPEX
Residential BESS
Tunis Backup Suite
Retrofit30 kWh0 outages
Off-Grid
Djebel Zaghouan Retreat
9 kWp PV24 kWh + gen100% off-grid
Client voices
Trusted by homes and businesses.
“Absolutely German-level workmanship. My electricity bill dropped by nearly 80% and the monitoring app is fantastic.”
Karim B.
Villa Owner, La Marsa
“They designed a hybrid PV + storage system that keeps the hotel running even during outages. Professional from day one.”
Sonia M.
Hotel Director, Hammamet
“Our irrigation now runs on the sun. No more diesel, no more logistics headaches. Best investment we've made.”
Mohamed T.
Farm Owner, Sfax
Why Helio
German Engineering. Tunisian Expertise.
Helio Energy Solutions was founded by two renewable-energy engineers with professional experience in Germany and more than ten years of combined experience in solar energy, battery storage and energy-system design.
10+
Years of combined engineering experience
DIN/VDE
European safety & installation standards
Tier-1
Panels, inverters and lithium storage
25 yr
Performance warranty on solar modules
Engineering-led design
Every system is sized, simulated and stress-tested before a single panel is ordered.
European quality standards
Installation follows DIN/VDE electrical codes and IEC safety practices.
Solar + storage expertise
Grid-tied, hybrid and off-grid architectures with modern lithium BESS.
Adapted to the Tunisian climate
Sizing accounts for local irradiation, dust, heat and STEG tariff structure.
Local installation & after-sales
In-house Tunisian crew for commissioning, monitoring and maintenance.
Transparent recommendations
You receive the full technical file — assumptions, yields and payback, no black box.
Long-term system performance
Preventive maintenance plans keep production above 95% of expected yield.
Design Your Solar System
Build a system tailored to your home or business.
Answer six quick questions and receive a preliminary Helio recommendation — sized for Tunisian sunlight, STEG tariffs and your usage.
Step 1 of 617%
What type of property?
How your energy flows
Battery Backup Simulator
Size the battery that keeps you running.
Pick your appliances, choose how long they should stay on during an outage — we'll size the battery, the inverter and the backup duration.
Refrigerator
150 W
Qty
1
Hours
8
Lights
120 W
Qty
1
Hours
6
Wi-Fi router
20 W
Qty
1
Hours
8
Television
120 W
Qty
1
Hours
4
Estimated peak load
0.41 kW
Recommended battery
1.6 kWh
Recommended inverter
0.5 kW
Estimated autonomy
6.1 hours
Preliminary estimates — a Helio engineer will verify the loads on-site.
Solar Savings Calculator
See what you could save.
Estimate your solar system size, annual production and payback for your Tunisian location.
300 TND
0.28 TND/kWh
5.5 h
40 m²
Recommended system size
6.7 kWp
Annual production
10,439 kWh
Estimated annual savings
2,923 TND
Payback period
7.3 years
Indicative estimate — request a free assessment for a precise proposal.
Get my custom quoteFAQ
Questions we hear often.
Most residential clients cut 60–90% of their grid consumption. Commercial payback typically lands between 4 and 7 years.
Let's talk
Let's build your energy independence.
Tell us about your project. We reply within one business day with a first assessment — free, no obligation.