As a leading specialist in power electronics including photovoltaic, wind and battery storage system technologies, Wind & Sun Technologies (WSTECH) develops and produces a whole range of solutions for the renewable energy, grid and energy storage sectors.
WSTECH’s extensive power electronics experience is embedded in all the products that the company brings to the market sharing the basic principles of high efficiency and reliability, low maintenance cost and long lifetime operation availability.
Our high technology R&D centre as well as the electronics manufacturing factory is located in Flensburg, Germany.
Date of establishment
Lorenz Feddersen founded Fecon GmbH in Flensburg
Development of inverters for fuel cells for MTU with 500 kW
Relocation from the technology center to the new facility
Development PV container station up to 2MVA
Expansion of the production facility with 1500m²
Launch of the BAT -Series (Indoor) Inverter.
Carve out of FeCon R&D GmbH
Renaming of FeCon R&D GmbH to WSTECH GmbH
APS - Series UL certification (60Hz)
Commissioning of a 205 MW Photovoltaik plant in Vietnam
Realignment of the ESD concept in production
First service partner in the US
Synthic Inertia function
APS Full Skid Solution
Launch of our new central inverter MCS-Series (up to 7500kVA per inverter)
Development of converters on behalf of well - known external customers out of wind industry. The largest converter had an output of 6 MVA
(100kVA solar inverter)
(500kVA - 720kVA Solar Inverter)
Development of wind converters (leading into serial production for 2 to 2.5MVA wind turbines)
Expansion of the production facility and office building
Launch of APS - Series 1 st Generation (HW120)
Commissioning of Switzerland's biggest Energy Storage System (19.6MW)
Commissioning of Europe's biggest Energy Storage System (52.8MW)
Conversion of power stack production (automated production and quality control)
Launch of APS - Series 2nd Generation (HW130)