1 / 10 Sentraal High School Solar System
200kW Atess System
518.1 MWh per year300 kWp Solar100 kWh Battery
Slash electricity bills and secure reliable power with Del Group's...
Professional Business Solar Solutions
Technology
Businesses across the Free State face rising electricity costs and unreliable power supply. Without professional solar solutions, companies risk excessive monthly energy bills, disruptions to operations due to unreliable power supply and falling behind competitors who adopt renewable energy.
As a Herholdt's Trusted Solar Installer, we've delivered over 6 MWp of solar PV installations. Our team designs, installs, and maintains solar systems tailored to your business needs, using only Tier-1 components and offering financing options to make the transition affordable.
Our Business Solar Process
- 01
Free Consultation
We start with a detailed assessment of your business energy needs and site conditions.
- 02
Custom System Design
Our engineers design a solar solution tailored to your operations, energy profile, and budget.
- 03
Professional Installation
Certified electricians install Tier-1 components with strict compliance to safety standards.
- 04
Compliance & Handover
We provide a Certificate of Compliance and a workmanship guarantee, ensuring peace of mind.
- 05
Ongoing Maintenance
From cleaning panels to servicing inverters, we keep your solar system performing optimally.
Solar Systems
Solar Systems - Hybrid
A Battery Backup system provides power to a home/office when the primary source of grid power is unavailable. The inverter automatically switches over and supplies energy to the power user via stored energy in the batteries. The batteries will again be charged by the inverter when grid power is restored, ready for subsequent power failure! This switchover occurs within a matter of split seconds and does not require any human intervention.
Solar Systems - Grid Tied
A Grid-Tied solar system is a solar energy system connected to the electrical grid. Therefore, it uses electricity from both the solar panel system and the electrical grid. Because of this, a grid-tied solar system doesn't have to meet all of the home's electricity demands.
Solar Systems - Off-Grid
With an Off-Grid system, there is no public electricity grid. When your solar system is not working (night time or cloudy days), your appliances will draw power from the batteries & backup generator. Once the battery bank is complete, it will stop receiving power from the solar system.
Commercial Solar Installations
1 / 10 
1 / 15 Just Beef
1000kW Atess System
998.2 MWh per year550 kWp Solar1600 kWh Battery
1 / 7 Enfin Energy Finance
25kW Sigenergy System
100% Saving16 kWp Solar48 kWh Battery
1 / 6 Caltex, Langenhoven Park
61kW Grid Tied System
998.2 MWh per year550 kWp Solar1600 kWh Battery
1 / 4 Bays Village, Bloemfontein
220kW Grid Tied System
998.2 MWh per year550 kWp Solar1600 kWh Battery
Our Clients
Del Group proudly serves homeowners, businesses, and farms across the Free State and Northern Cape — trusted for reliable, compliant, and high-quality electrical, plumbing, and solar solutions.
Benefits of Professional Business Solar
Slash Energy Costs
Reduce monthly electricity bills by up to 70% with efficient solar PV systems designed for your usage profile.
Reliable Operations
Hybrid and grid-tied systems keep your business running even during load shedding and grid instability.
Financing Options
We help businesses access financing to make solar affordable, with flexible repayment plans.
Proven Expertise
With over 6 MWp installed across the Free State, Del Group has the experience and credentials to deliver projects of any scale.
Compliance & Certification
All installations are compliant with SANS 10142-1 standards and include a Certificate of Compliance (COC).
Testimonials
“From the quotation to the installation the service was professional and on point. I will also recommend Dell as your number one supplier and installers of solar.”
“If you're looking for a reliable, professional, and highly skilled team for your solar needs or lighting installations, look no further than the Del Group. Their dedication to quality workmanship and outstanding customer service truly shines through. I'm already enjoying the benefits of my upgraded solar system and beautiful new lighting, all thanks to the fantastic work of the Del Group!”
“We are extremely pleased with the outstanding service provided by DEL Group. Their team consistently demonstrates professionalism, efficiency, and a commitment to excellence that truly sets them apart. Every interaction has been smooth and well-coordinated, with clear communication and quick turnaround times. We are proud to work with a company that upholds such high standards, and we confidently recommend DEL Group to anyone in need of reliable and quality service. It is a pleasure to partner with them, and we will continue to prefer their services going forward. Thank you, DEL Group, for your dedication and excellence!”
“Excellent and Efficient Service The service was outstanding and highly efficient. The work was completed to a high standard, and everything was handled professionally from start to finish. Very satisfied! Friendly service too, thank you Del!”
“We are very happy with Del Group. We will use them again.”
Our Track Record
6 MWp+
Solar Installed
300+
Projects Completed
75 Years+
Experience
Contact us
Get in touch today
Need a quote, site inspection or urgent support? Our expert solar, electrical & plumbing team is ready to help.
- Call us: +27 51 101 1660
- After Hours: +27 73 708 2098
- Email: admin@delgroup.co.za
