Energy Upgrades
that Pay for Themselves.
Commercial solar PV, EV charging, and LED retrofits across Essex and Greater London. NICEIC-accredited. ROI projections before you commit.
What We Offer
Types of
Energy Upgrades
Energy costs are not going down. The businesses that invest in solar, EV charging, and LED now carry lower overheads in five years. Payback periods are established. The technology is mature.
Solar PV
Rooftop and ground-mount solar systems. Single site to portfolio. Battery storage available.
Solar PV
Rooftop and ground-mount solar systems. Single site to portfolio. Battery storage available.
EV Charging
Charging infrastructure for staff, fleet, and customers. Commercial and domestic.
EV Charging
Charging infrastructure for staff, fleet, and customers. Commercial and domestic.
LED Lighting
Lower energy costs, better light quality, decades of low maintenance.
LED Lighting
Lower energy costs, better light quality, decades of low maintenance.
Why Wren Electrical
Why Commercial Clients Choose Wren
01
NICEIC-Accredited.
Every energy upgrade we carry out is covered under our NICEIC accreditation. One firm managing the project from survey to switch-on. No gaps in accountability between separate contractors.
01
NICEIC-Accredited.
Every energy upgrade we carry out is covered under our NICEIC accreditation. One firm managing the project from survey to switch-on. No gaps in accountability between separate contractors.
02
Cut Your Energy Costs. We'll Show You How.
Commercial solar PV typically pays back in four to eight years and generates returns for twenty-five. EV charging adds a facility that staff and customers increasingly expect. LED retrofits cut lighting costs by up to 70 percent and require virtually no maintenance for years. We provide projected figures — cost, saving, and payback
02
Cut Your Energy Costs. We'll Show You How.
Commercial solar PV typically pays back in four to eight years and generates returns for twenty-five. EV charging adds a facility that staff and customers increasingly expect. LED retrofits cut lighting costs by up to 70 percent and require virtually no maintenance for years. We provide projected figures — cost, saving, and payback
FAQs
Got Questions?
We’re here to make Wren Electrical easy to understand.
Still got questions?
What energy upgrades do you install?
Wren Electrical installs solar PV, battery storage, EV charging points, and LED lighting retrofits for both commercial premises and domestic properties across Essex and Greater London.
How long does commercial solar take to pay back?
Can solar panels power EV charging?
Is there government funding available for energy upgrades?
Do energy upgrades cause much disruption?
What energy upgrades do you install?
Wren Electrical installs solar PV, battery storage, EV charging points, and LED lighting retrofits for both commercial premises and domestic properties across Essex and Greater London.
How long does commercial solar take to pay back?
Can solar panels power EV charging?
Is there government funding available for energy upgrades?
Do energy upgrades cause much disruption?
Ready for Safer
and Smarter Electrical Solutions?
© Copyright 2026. All Rights Reserved.
Ready for Safer
and Smarter Electrical Solutions?
© Copyright 2026. All Rights Reserved.
Ready for Safer
and Smarter Electrical Solutions?
© Copyright 2026. All Rights Reserved.