What fosera does

Fosera is a German-headquartered solar hardware company founded in 2011 that designs and manufactures modular, DC-powered solar energy systems targeted at off-grid households in developing regions, primarily in sub-Saharan Africa. Its product platform spans single-purpose devices — a DC solar slow cooker, the MIA I/II DIY lantern kit, and the MIA III light-and-phone-charging unit — through to the MIA IV (ISSS), a full off-grid solar home system. The company's core technical differentiator is proprietary "Multistaging Technology," which allows solar home systems to operate on cheaper and reused batteries without an inverter, structurally reducing the bill of materials relative to conventional off-grid solar setups.

Fosera's go-to-market is direct inquiry-based: customers and project partners submit country, scale, and use-case details through the website and receive custom kit specifications and delivery timelines. Products are currently labeled "Not for sale yet," placing Fosera in a concept/field-validation stage rather than commercial scale. Operational activity is concentrated in two pilot projects — the Penduka solar lantern assembly training program in Namibia, where women with textile backgrounds assemble MIA I lanterns, and a solar slow cooker field test in Malawi run with a local partner experienced in solar cooking. Revenue model is hardware sales of solar kits, with no public pricing disclosed. Leadership consists of founder-CEO Catherine Adelmann and CTO Daniel Goldbach, and the company employs 51–100 people.

Name

fosera

Website

https://fosera.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

51–100 employees

Short description

Fosera is a German solar hardware company that designs and manufactures modular, DC-powered solar kits — including lighting, phone charging, cooking, and full home systems — for off-grid households in sub-Saharan Africa using proprietary inverter-free multistaging technology.

Ownership category

akta.pro rank

Product category

Off-Grid Solar Energy Systems

NAICS

Solar Electric Power Generation (221114)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Distributed Generation (DG) Solar & Small Wind (EUAMAJAD)

akta.pro secondary industry

Renewable Distributed Generation (Rooftop/Onsite Solar, Small Wind, Small Hydro) (EUACALAJ)

Keywords

• Off-grid solar systems
• Solar home systems
• Solar lanterns
• Solar cooking kits
• DC solar power

Headquarters

HQ city

Senden

HQ country

Germany

HQ region

Europe

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Technology or R&D, Personnel, Operations, Marketing or Sales

Revenue model

1. Solar Kit Sales: Fosera generates revenue through the sale of modular solar kits including solar cooking systems, solar lanterns (MIA I, II, III), and full solar home systems (MIA IV). Products are sold directly to customers via inquiry-based requests.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Fosera designs and manufactures modular DC-powered solar kits for off-grid households, including a solar slow cooker, DIY educational lantern kits (MIA I and II), a lighting and phone-charging system (MIA III), and a complete solar home system (MIA IV / ISSS). All products run on direct current without inverters and leverage proprietary Multistaging Technology that allows the use of cheaper and reused batteries, lowering total system cost compared with conventional off-grid setups.

Product overview

Fosera offers a modular DC-powered solar platform spanning individual products to complete home systems. The portfolio includes the DC Solar Cooking slow cooker, the MIA I and II educational lantern kit (DIY build), the MIA III light and phone charging unit, and the MIA IV (ISSS) full solar home power system. All products operate exclusively on direct current without requiring inverters, enabling compatibility with lower-cost battery solutions. The platform scales from single-purpose devices to comprehensive off-grid energy solutions.

Differentiator

Problem solved

Functional benefit

Brands

• MIA: Product line of solar-powered lighting and home power systems including MIA I, MIA II, MIA III, and MIA IV (ISSS).
• DC powered Solar Cooking

Products and services

• DC powered Solar Cooking A solar-powered slow cooker that cooks meals using sunlight with no firewood, gas, or other fuel required; the cooker retains warmth after sunset so dinner stays hot. Intended for off-grid households that currently rely on firewood or gas for daily cooking.
• MIA I and II Solar Lantern Kit A DIY build-it-yourself solar lantern kit that teaches basic electronics and soldering while providing evening lighting, and is designed to fit a standard glass jar. Targeted at off-grid households and education/training programs.
• MIA III Solar Light and Phone Charger A solar lighting and phone-charging system for off-grid homes featuring adjustable dimming and a rooftop solar panel for room lighting and device charging. Designed for households without grid access that need reliable evening lighting and phone power.
• MIA IV (ISSS) Solar Home System A complete DC-powered solar home system delivering full off-grid electricity for lighting, cooling, and device charging. Uses Fosera's proprietary multistaging technology to operate on cost-effective and repurposed batteries without requiring an inverter, targeting a significantly lower total cost than conventional off-grid AC setups.

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Two partnerships are on record, tiered core.

• PendukacoreStrategic or Co-development PartnerPenduka in Namibia provides training facilities where women with backgrounds in textile work assemble MIA I solar lanterns. Four trainees per session receive hands-on training from the start. Each completed lantern represents income earned locally, supporting community economic development alongside product distribution.
• Local Partner (Malawi)coreStrategic or Co-development PartnerFosera partners with a local organization in Malawi that has worked on solar cooking initiatives for years. This partner is supporting the solar slow cooker field test, providing local expertise and market knowledge to test how cookers perform in real daily-use conditions and how the technology integrates into existing household routines.

Scale indicators1 record

Recent moves5 records

Expansion highlights5 records

Direct peers

• Sun King (formerly Greenlight Planet): Global off-grid solar company selling solar lanterns and home systems through a PAYGO model across Africa and South Asia. Direct competitor in product category, customer segment, and distribution approach (direct sales agent networks).
• d.light: Designs and distributes affordable solar lanterns and solar home systems across off-grid markets in Africa and Asia. Directly comparable as a pay-as-you-go and outright-purchase off-grid solar home system provider targeting the same end customer as Fosera.
• BBOXX: UK-headquartered provider of solar home systems and PAYGO energy access across Africa. Comparable in targeting off-grid households with modular, scalable solar kits financed through mobile payments.
• M-KOPA: Leading pay-as-you-go solar home system provider in East Africa offering financed solar lighting, phone charging, and home power. Operates in the same off-grid African segment with a similar product ladder (lantern to full SHS) that Fosera's MIA line is positioned against.
• Barefoot Power: Distributes affordable solar lanterns and small home power systems to off-grid households in Africa and the Pacific. Comparable in product mix (solar lanterns, phone charging, small home systems) and target end-user.
• Azuri Technologies: PAYGO solar home system provider serving off-grid households across East and West Africa. Closely comparable business model and target customer as Fosera's MIA line.
• Zola Electric: Off-grid solar company offering solar home systems and pico-solar products across sub-Saharan Africa. Direct competitor in the off-grid household segment with overlapping product functionality.

Broad incumbents

• Signify (Philips Lighting): Global lighting major with solar lantern and off-grid lighting lines sold across Africa and Asia. Overlaps with Fosera's MIA I/II/III lantern products but as part of a much broader lighting portfolio.
• Schneider Electric (off-grid / solar home systems): Global energy management and electrical equipment major with an off-grid and solar home system portfolio across emerging markets. Broad incumbent in the same category with deeper capital, certifications, and distribution, though not niche-focused on the lowest-tier off-grid segment Fosera targets.

Emerging players

• SolarAid / SunnyMoney: NGO-affiliated distributor of low-cost solar lights across sub-Saharan Africa, including Malawi. Comparable in geographic focus (notably Malawi, where Fosera is piloting) and end-customer segment, though operating as an impact-funded distributor rather than a manufacturer.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/enjoyfosera
• Facebookfacebook.com/foseraWorld
• LinkedInlinkedin.com/company/fosera-co-ltd-

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about fosera