The Mobisol Solar Home System is a large integrated home and business level energy system with a solar panel, battery, power electronics, appliances and pay-as-you-go functionality. ENGIE Mobisol GmbH systems are available with power ratings of 40, 80, 100, 120 and 200 Watts (some power ratings and component combinations are only available in certain markets). ENGIE Mobisol GmbH systems have larger generation capacities than similar solar home system products in East Africa to support more demanding appliances such as refrigerators, televisions and de-huskers for example.
Within each of the available power ratings, various options are available to customize the system to the user’s needs. Available components include: 3 to 12 LED light bulbs (2 W or 3.5 W), a TV (several sizes available), a radio, a phone charger and a Sun King Pico 50 Portable Lamp. More information is available here and here.
ENGIE Mobisol GmbH is located in Berlin, Germany, it manufactures the systems in Germany and China and has sales centres in Kenya, Rwanda and Tanzania.
Market Suggested Retail Price
Distributors / Implementing Organizations
ENGIE Mobisol GmbH has sales and service centres at national and regional level and sales centres at local level in some regions of its target countries (Tanzania, Rwanda and Kenya).
ENGIE Mobisol GmbH manufactures different parts of its Solar Home Systems kits in Germany and China and then ships these components to Kenya for assembly. The kit assembly process and manufacturer supply is monitored by ENGIE Mobisol GmbH and each of the system's components are put through a series of quality tests. The system appliances are sourced from a third party and are ENGIE Mobisol GmbH quality assured. Interview with representative
Intellectural Property Type
User Provision Model
Users can purchase systems from retail storefronts in Tanzania, Rwanda or Kenya. ENGIE Mobisol GmbH has a system of national, regional and market hubs with flagship stores in the capital cities.
Description of power outputs
Up to 5 DC and 2 USB outlets
Description of light points
Up to 12 LEDs (2 W or 3.5 W); up to 1 portable lamp (Sun King Pico 50)
Total lighting service (lumen-hours per solar-day)
Up to 80,000 lumen-hours per solar-day
Peak power rating (Wp)
80 – 200 Wp
Battery capacity (kWh; mAh)
Up to 1.152 kWh; 96,000 mAh
Nominal battery voltage (V)
User replaceable battery (yes/no)
Remote system diagnostics (yes/no)
Mobile service required (yes/no)
ENGIE Mobisol GmbH currently offers five solar home system sizes with power ratings of 40, 80, 100, 120 and 200 Watts (availability of specific systems varies with location). The systems include a solar panel, a pay-as-you-go enabled solar battery and controller (54 Ah or 96 Ah), three to twelve LED light points (2 W or 3.5 W bulbs), two 5 volt USB port, three 12 volt ports and two 3-prong Mobisocket jacks. Several systems also include a radio, a television of various sizes, a phone charger and/or a portable lamp supplied by Sun King Eco. More information is available here and here. ENGIE Mobisol GmbH is working towards prototypes and pilots for systems that are larger than 200 watts, including an 800 W system capable of powering solar welding.
A toll free service hotline is available for customer inquiries that is open from 7 am - 9 pm local time. If their customer service team is not able to resolve the issue over the phone, they arrange for a technician to visit the customer's home within 72 hours to take care of the repair free of charge (during the 3 year warranty period). It is also possible to contact ENGIE Mobisol GmbH for technical support issues by email or through a contact form on their website. ENGIE Mobisol GmbH call customers if they detect a technical fault with their system and communicate payment reminders to customers through SMS and by phone in the case of late payment.
The lifetime of Mobisol systems is 4.5 - 5 years. Interview with representative There is a three or four year warranty on the system controller and battery, a two year warranty on the TV and a one year warranty on all other appliances . The solar panel has a 20 year warranty provided by the manufacturer.
Manufacturer Specified Performance Parameters
Performance targets vary with different system sizes and combinations. For the 200W premium package (sold in Tanzania), ENGIE Mobisol GmbH state that "It has highest usable battery capacity in that market" and the "Long expected battery life-time for more than 6 years".
Vetted Performance Status
Lighting Global vetted the systems by testing components according to the Quality Test Method in the latest edition of IEC 62257-9-5 and/or their own Lighting Global Quality Assurance Protocols for Solar Home System Kits. They confirm that the systems meet the Lighting Global Quality Standards. At a component level, they tested the: battery capacity (mAh) of the two Battery/Control Box options, peak power at STC (W) of the different PV Modules, luminous flux (lm) and lamp efficacy (lm/W) of the Light sources, power (W) and battery capacity (mAh) of the TVs, and also listed which component combinations are available. At a system level, they tested/confirmed the following parameters for the 200W Solar Home System with 32" TV: Full battery run time (hrs) per day of solar charging for each appliance alone or in combination; Total light output (lm); Lamp type; Special features (mobile charging and appliances and pay as you go); Overall durability and quality standards tests (drop, soldering and electronics workmanship, mechanical, minimum warranty, performance reporting)
Be sure to follow proper electrical installation and control guidelines.
Complementary Technical Systems
Mobisol has designed specific business kits and appliances that are compatible with their solar home system. Included in these kits are the necessary appliance as a multiple phone charging unit or a barber’s hair clipper and also educational material to help start the business – such as book-keeping essentials.
Academic Research and References
Rolffs, P., Byrne, R., Ockwell, D., 2014, Financing sustainable energy for all: pay-as-you-go vs. traditional solar finance approaches in Kenya.
Oruoch, A. N. O., 2015, Financial Aspects of Stand-alone Solar Power Systems in Sub-Saharan Africa. M.Sc. Thesis, University of Missouri – Kansas City, Kansas City, MO.
Warnecke, T., Houndonougbo, A. N., 2016, Let There Be Light: Social Enterprise, Solar Power, and Sustainable Development. Journal of Economic Issues, 50(2), 362–372.
Pueyo, A., 2013, Real Time Monitoring Technologies for Pro-Poor Access to Electricity. IDS Evidence Report No. 12,. Institute of Development Studies (IDS).
Adwek, G., Boxiong, S., Ndolo, P.O., et al., 2020, The solar energy access in Kenya: a review focusing on Pay-As-You-Go solar home system. Environ Dev Sustain, 22, pp. 3897–3938.
Compliance with regulations
Mobisol provides reliable solar power for a quarter million beneficiaries in Africa Mobisol Service Animation Mobisol trains their employees and technicians through the Mobisol Academy, a short video about this can be found here.