Harnessing the Sun,
Energizing Kenya.☀️
Revolutionizing Green Energy Solutions.
Solar Power With Advanced Supercapacitor Storage
Our Impact in Numbers
Transforming Kenya's energy landscape with reliable and sustainable solar solutions.
Solar power with supercapacitor innovation
W. Giertsen Energy Solutions Ltd delivers reliable solar solutions across Kenya and greater Eastern Africa for homes, businesses, communities, UN organisations and NGOs. As part of the W. Giertsen Group, we leverage over a century of sustainable infrastructure expertise.
Our unique approach integrates solar power with advanced supercapacitor storage—technology we pioneered in Kenya. Our systems integrate seamlessly with existing infrastructure, providing reliable, low-maintenance power that excels even in Kenya's most demanding environments.
Clean Energy Solutions for Growth
Cut your energy costs with solar power that pays for itself. Generate your electricity, reduce monthly bills, and protect your business from rising energy costs. Our simple process gets you powered by sunshine with no hassle.
Powering Kenya's Future, Together
Choose W. Giertsen for solar solutions with proven results and exceptional reliability across Kenya.
Rapid Deployment Advantage
With full stock maintained in Nairobi, we deploy complete systems within days, not months - no waiting for overseas shipments.
Expert Local Support
24-hour response time with Kenya's most experienced solar team, providing peace of mind and minimizing costly downtime.
Proven Across Sectors
Transforming energy reliability for Kenya's hospitality industry, religious facilities, and residential communities with specialized solutions.
Tested in Extreme Conditions
Successfully deployed high-voltage systems in challenging environments like South Sudan for ICRC, demonstrating our technology's exceptional durability.
Real Performance Data
Our supercapacitor systems reduce generator runtime by up to 85% - Mara Bush Camp went from 7 hours daily generator use to just 1 hour or none at all.
How We Work
At W. Giertsen Energy Solutions, we follow a practical, step-by-step approach to ensure that every solar project — whether humanitarian, commercial, or institutional — is delivered efficiently, safely, and with long-term performance in mind.
Initial Consultation
We begin by understanding your energy needs, operational context, and site conditions.
Site Assessment & Technical Design
Our team conducts a site visit (where possible) or reviews site-specific data to create a custom solar solution tailored to your environment and usage requirements.
Proposal & Agreement
We present a detailed technical and financial proposal, along with system specifications and delivery timelines.
Procurement & Logistics
With operations based in Nairobi and international supply networks, we handle equipment sourcing and transport — whether local delivery or regional deployment to hard-to-reach areas.
Installation & Commissioning
Our trained technicians and trusted partners install and commission the system, ensuring full functionality and safety.
Training & Support
We provide basic user training and ongoing technical support to ensure proper system usage, maintenance, and sustainability.
This workflow allows us to deliver high-quality energy solutions — on time, on budget, and built for long-term performance in even the most demanding conditions.
Customer Success Stories
Don't just take our word for it. Here's what our satisfied customers have to say about their experience with our solar solutions.
Partners Who Trust Us
We're proud to work with some of the most respected organizations across Kenya and beyond.
Awards & Recognition
Our commitment to innovation and excellence in renewable energy has earned us recognition from leading industry organizations.
Best Off-Grid Solar Project
Innovation & Reliability in Off-Grid Solar Solutions
Solar Company of the Year
Excellence in Energy Storage Solutions
Excellence in Solar Project Execution
Outstanding Achievement in Project Implementation
AFSIA Solar Award
Commercial & Industrial (C&I) Solar Project of the Year
Member since 2017
Annual re-certification process
Technology and Innovation Excellence Award
Best Innovation in Sustainable Energy Storage Solutions
These accolades reflect our dedication to providing innovative, reliable, and sustainable energy solutions that transform lives and businesses across Kenya.
Ready to Transform Your Energy Future?
Take the first step towards a more sustainable and cost-efficient energy solution for your home or business. Our experts are here to help.