Manufactures glass-glass solar modules and electricity storage systems and implements integrated PV systems with energy management, heat pumps and wallboxes.
SOLARWATT GmbH
Dresden (headquarters) · Bochum · Frankfurt · Kassel · Leipzig · SchaumburgNew on Amplifa
About Solarwatt
SOLARWATT GmbH was founded in Dresden in 1993 as a manufacturer of special modules and is today a system provider for photovoltaics active across Europe. The company manufactures impact-resistant glass-glass solar modules for roofs, carports and facades as well as lithium-ion-based battery storage systems; since 2024, module production has been partly carried out by Asian contract manufacturers. In addition to manufacturing, Solarwatt offers complete solutions from a single source: planning and installation of PV systems with project sizes from 100 kWp to 10 MWp, electricity storage including scalable commercial storage systems, inverters, wallboxes, heat pumps, and intelligent energy management with the SOLARWATT Manager. Customers include private households, commercial enterprises, industry and the housing sector; reference projects include the Berlin Olympic Stadium, BMW Welt Munich, Vonovia and Zeppelin Systems. The headquarters with production line is located in Dresden; the company has its own sales and installation teams in Bochum, Frankfurt, Kassel, Leipzig and Schaumburg, complemented by a network of more than 400 certified partners in Germany, Austria and Switzerland. More than 750,000 systems have been installed across Europe.
- Site
- Dresden
- Processes
- Manufacturing of glass-glass solar modules, Manufacturing of electricity storage systems (battery storage), Manufacturing of manually produced special modules, Planning and installation of photovoltaic systems, Custom manufacturing of PV modules (custom designs), Implementation of facade photovoltaic systems, Commercial storage solutions (scalable electricity storage), Planning and installation of PV systems
- Materials
- Glass-glass module (glass-glass structure of PV modules), Glass-film module (glass front, film back), Solar fluid (heat transfer fluid for solar thermal), Krypton gas, Methanol (heat transfer medium), Polyurethane foam (flat-plate collector insulation), Mineral wool (flat-plate collector insulation), Foam glass (flat-plate collector insulation)
- Certificates
- ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, ISO 50001:2018, Cradle to Cradle silver, Cradle to Cradle Silver
- Founded
- 1993
- Industries
- Photovoltaics, Renewable Energies, Energy Storage, Electromobility, Heating/HVAC Technology, Housing Sector
- 01
Manufacturing of glass-glass solar modules and battery storage systems
- 02
Engineering and system development (energy management, software)
- 03
Planning and feasibility assessment
- 04
Installation and commissioning
- 05
Service, support and warranty processing
Modules & System Components
Glass-Glass Solar Module
Double-glazed modules with reduced power degradation, 30-year product and performance warranty.
Glass-Film Module
Front-glazed modules with protective back film for cost-sensitive applications.
Lithium-Ion Battery Technology
The basis of SOLARWATT battery storage systems (Battery flex, Battery vision).
Locations
SOLARWATT Dresden
DEHeadquarters with module and battery production, engineering
- Materials
- Glass-glass modules, glass-film modules, lithium-ion storage systems
- Fully integrated module production line (since 2010)
- Battery storage production line (since 2017)
- F8 solar panel production line (since 2021)
SOLARWATT Bochum
DESales and installation site
SOLARWATT Frankfurt
DESales and installation site
SOLARWATT Kassel
DESales and installation site
SOLARWATT Leipzig
DESales and installation site
SOLARWATT Schaumburg
DESales and installation site
Components & Systems
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacturing of glass-glass solar modulesPhotovoltaic Manufacturing | – | – | – | – | Solar module glass-glass structure |
| Manufacturing of electricity storage systems (battery storage)Storage System Manufacturing | – | – | – | – | Lithium-ion battery technology |
| Manufacturing of manually produced special modulesPhotovoltaic Manufacturing | – | – | – | – | – |
| Planning and installation of photovoltaic systemsAssembly | – | – | – | 100 kWp – 10 MWp | – |
| Custom manufacturing of PV modules (custom designs)Photovoltaic Manufacturing | – | – | – | – | Glass-glass modules |
| Implementation of facade photovoltaic systemsAssembly | – | – | – | – | Glass-glass modules, Glass-film modules |
| Commercial storage solutions (scalable electricity storage)Storage System Manufacturing | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Solar panel production line (fully integrated) | Solarwatt | 1 | – | 2010 | Dresden |
| Battery storage production line | Solarwatt | 1 | – | 2017 | Dresden |
| F8 solar panel production line | Solarwatt F8 | 1 | – | 2021 | Dresden |
Additional services
Reference customers
Quality & Certifications
Manufacturing and services are supported by certified management systems for quality, environment, occupational safety and energy. The glass-glass modules come with a 30-year product and performance warranty (at least 90% performance after 30 years) and are Cradle to Cradle Silver certified.
| Evidence | Dresden |
|---|---|
| ISO 9001:2015 | |
| ISO 14001:2015 | |
| ISO 45001:2018 | |
| ISO 50001:2018 | |
| Cradle to Cradle Silver |
Company History
- 1993
Founded as SOLARWATT Solar-Systeme GmbH in Dresden as a manufacturer of special modules
- 1995
Series production of impact-resistant small modules (e.g. emergency call columns, vending machines)
- 1996
First investment by Stefan Quandt, later sole owner
- 1998
Development of the glass-glass solar module
- 2005
Renamed Solarwatt AG and stock market listing; PV system on BMW Welt Munich (823.5 kWp, 3,660 special modules)
- 2010
First fully integrated module production line in Dresden
- 2011
Insolvency under self-administration; majority stake by Aqton SE (Stefan Quandt), restructuring as Solarwatt GmbH
- 2012
Relaunch with focus on integrated PV systems with storage and energy management
- 2013
First energy management product with Kiwigrid GmbH
- 2015
Launch of MyReserve; acquisition of the French and Dutch Centrosolar subsidiaries, founding of Solarwatt Italia S.r.l.
- 2016
Acquisition of storage specialist e-Wolf
- 2017
Battery storage production line in Dresden
- 2021
Launch of SOLARWATT Battery flex with BMW Group; founding of Solarwatt Technologies Ltd. (UK/Ireland); new F8 production line
- 2022
Cooperation with Stiebel Eltron; acquisition of REConvert (NL); Cradle to Cradle Silver for glass-glass modules
- 2023
Ten millionth solar module installed (Suffolk, UK)
- 2024
Production pause in Germany and relocation to Asian contract manufacturers; launch of Solarwatt Home; acquisition of 60% of Ahrens Solar- und Dachtechnik; Benjamin Frank becomes CEO/CFO
- 2025
Peter Bachmann joins the executive board as CPO