De-Sun Solar Systems is a reputable Kenyan solar energy company established in 2020 by Dennis Wanderi, a visionary entrepreneur dedicated to providing clean, affordable energy solutions. Located at Venus Complex along the Northern Bypass, we cater to homes, farms, institutions, and businesses throughout Kenya with durable, customized solar systems.
Mission
We design and deliver innovative solar solutions, empowering Kenyans to reduce costs, stay energized, and live sustainably, no matter where they are!

Vision
To transform Kenya's energy landscape by prioritizing clean,reliable solar energy as the preffered choice for every home,farm and business.
Core Values
• Integrity – We consistently deliver on our promises.
• Sustainability – We design systems that are built to endure.
• Innovation – We leverage proven technology and continuously adapt.
• Customer Focus – We listen, customize, and provide unwavering support.
• Work Ethic – "Kazi safi kila siku" is not just a motto; it embodies our commitment!
Harness the sun's energy to heat your water efficiently. Our solar water heating systems are engineered to lower energy costs while providing a sustainable solution for both homes and businesses.
Transform your borehole into a sustainable water source. Our solarization solutions ensure reliable and cost-effective water pumping, harnessing the power of clean solar energy.
Expert evaluations and customized solar solutions for residences, businesses, and industries to enhance energy efficiency.
Get in touch +254 792 958918

30KW SOLAR SYSTEM
Glade Resort, Nanyuki


The system installed was aimed at reducing cost and having a reliable source of power to cater for all the Restaurant's needs and uses.
System components installed include:
This 30kW solar system can power:

5KW SOLAR SYSTEM & 200NP SOLAR WATER HEATER SYSTEM
Ruaka, Nairobi

The system features a 5 kW solar power setup paired with energy storage and a solar water heating solution, all professionally installed and commissioned by our technical team.
System components installed include:
This 5kW solar system can power:

12KW Solar System
Memble Estate , Ruiru
A 12 kW solar power system was successfully installed in Ruiru, delivering reliable, efficient electricity while significantly enhancing power stability and reducing dependence on the national grid.
The system features a 12 kW three-phase low-frequency hybrid inverter, paired with high-capacity energy storage and a robust solar array, all professionally installed and commissioned by our technical team to ensure safety, durability, and optimal energy performance.

Solar Water Heater
Makueni
Experience the benefits of an efficient, reliable, and expertly installed solar water heating solution with our 300-L solar water heater. Designed to meet your hot water needs consistently, this advanced system not only provides ample hot water for your household but also significantly reduces your energy costs.
With our solar water heater, you can enjoy peace of mind knowing that you are making an environmentally friendly choice without sacrificing performance. Take advantage of the power of the sun and enjoy a steady supply of hot water, all while contributing to a more sustainable future.
Key Features

6KW Solar System
kavaini, Kitui


The system features a 6 kW off-grid solar power setup paired with energy storage, all professionally installed and commissioned by our technical team in Kavaini, Kitui County.
System components installed include:
This 6 kW off-grid solar system can power:

300L All In One Solar Heat Pump System
Glade Resort, Nanyuki
The All-in-One Heat Pump Solar System is a modern, energy-efficient water heating solution that combines advanced heat pump technology with solar PV compatibility. Instead of relying on direct sunlight like traditional solar water heaters, the system extracts heat from the surrounding air to heat water efficiently and reliably, day or night.
This solution is ideal for homes, apartments, hotels, hospitals, and commercial facilities seeking consistent hot water supply, reduced electricity consumption, and dependable year-round performance.
Heat pump water heaters operate efficiently regardless of sunlight availability. They extract heat from ambient air, allowing them to perform consistently in cloudy, rainy, or cool conditions, unlike solar water heaters that depend heavily on direct sunlight.
Unlike solar water heaters that require large rooftop collectors, heat pump systems have a compact, all-in-one design. This makes them ideal for urban homes, apartments, and buildings with limited roof space.
Heat pumps can heat water any time of day or night, ensuring uninterrupted hot water supply. Solar water heaters are often limited to daytime operation and may require electric backup during low sunlight periods.
Heat pump systems require very low maintenance, typically limited to occasional inspections and basic filter cleaning. In contrast, solar water heaters require frequent panel cleaning, pump checks, and can be affected by dust, shading, or weather damage.
Modern heat pump water heaters are designed to operate efficiently even in low ambient temperatures (as low as -7°C). Solar water heater efficiency drops significantly during cold or overcast conditions.
Heat pumps achieve a Coefficient of Performance (COP) of 3–4, meaning they produce 3–4 times more energy than the electricity they consume. They can also be powered using solar PV systems, making them an excellent complement to solar power installations.
By reducing electricity consumption and integrating easily with renewable energy systems, heat pump water heaters offer a long-term, environmentally friendly solution for hot water needs.

SOLAR WATER HEATER
Children's Home Runyenjes
A 300L Non-Pressurized Solar Water Heating solution was supplied and installed at AIC Mufu Children’s Home in Runyenjes to provide reliable and sustainable hot water for daily use. The project involved the installation of two complete 300-litre systems, one serving the boys’ section and the other serving the girls’ section, ensuring equitable access to hot water for all residents.
The systems were professionally installed and commissioned by our technical team, optimized for efficient solar heat absorption and long-term durability.

Borehole Solarization
Silicon Valley estates, Kamakis-Ruiru
A 5 kW borehole solarization system was supplied and installed to provide a reliable, efficient, and sustainable water pumping solution. The system harnesses solar energy to power a high-capacity borehole pump, significantly reducing dependence on grid electricity and fuel-based pumping alternatives.
The installation features a robust solar PV array paired with a hybrid solar pumping inverter and durable mounting structures. The entire system was professionally installed and optimized to ensure efficient energy conversion and consistent water delivery under varying sunlight conditions.

10kw solar system
Kikuyu, Kiambu
A hybrid solar power system was supplied and installed to deliver reliable, efficient electricity for both household and auxiliary power needs. This installation significantly reduces reliance on grid electricity while ensuring stable power availability for essential and high-demand appliances.
The system harnesses solar energy through a high-capacity PV array, combined with battery storage and a hybrid inverter, all professionally installed and commissioned by our technical team to ensure safe operation, optimal performance, and long-term reliability.

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