History

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

Development of inverters for fuel cells for MTU with 500 kW

Relocation

Relocation from the technology center to the new facility

Development

Development PV container station up to 2MVA

Expansion

Expansion of the production facility with 1500m²

DEVELOPMENT

Launch of the BAT -Series (Indoor) Inverter.

Joint Venture

Carve out of FeCon R&D GmbH
Renaming of FeCon R&D GmbH to WSTECH GmbH

Certification

APS - Series UL certification (60Hz)

References

Commissioning of a 205 MW Photovoltaik plant in Vietnam

Quality management

Realignment of the ESD concept in production

SERVICE PARTNER

First service partner in the US
(Deutsche Windtechnik)

DEVELOPMENT

Synthic Inertia function

DEVELOPMENT

APS Full Skid Solution

DEVELOPMENT

Launch of  our new central inverter MCS-Series (up to 7500kVA per inverter)

10/2001
2003-2007
2005
2006
2006
06/2007
07/2007
2008
2009
2010
03/2013
03/2015
12/2016
2017
09/2017
06/2018
05/2019
10/2019
11/2019
12/2019
03/2020
09/2020
06/2021
10/2021
12/2021
02/2022
05/2022

DEVELOPMENT

Development of converters on behalf of well - known external customers out of wind industry. The largest converter had an output of 6 MVA

Development

Development HS100
(100kVA solar inverter)

Development

Development HSI500/720
(500kVA - 720kVA Solar Inverter)

DEVELOPMENT

Development of wind converters (leading into serial production for 2 to 2.5MVA wind turbines)

Expansion

Expansion of the production facility and office building

Development

Launch of APS - Series 1 st Generation (HW120)

REFERENCES

Commissioning of Switzerland's biggest Energy Storage System (19.6MW)

REFERENCES

Commissioning of Europe's biggest Energy Storage System (52.8MW)

Quality management

Conversion of power stack production (automated production and quality control)

Development

Launch of APS - Series 2nd Generation (HW130)

References

Commissioning of a 515,3 MW Photovoltaik plant in Vietnam

COMPANY

20 year anniversary, 5 year anniversary Joint Venture with Siemens

REFERENCE

Commissioning of the first 25MVA of contracted 350MVA energy storage inverters with MV-SKID in Ireland
10/2001
Establishment of FeCon GmbH
2005
Development of inverters for fuel cells for MTU with 500 kW
2006
Relocation from the technology center to the new facility
07/2007
Development PV container station up to 1.44MVA
2009
Expansion of the production facility with 1500m²
03/2013
Launch BAT – Series (Indoor)
2016
APS – Series BDEW certification 12/2016 Renaming of FeCon GmbH to WSTECH GmbH
2017
APS – Series UL certification (60Hz)
06/2018
Commissioning of Europe’s biggest Energy Storage System (52.8MW)
12/2019
Launch of APS – Series 2 nd Generation (HW130)
10/2019
Realignment of the ESD concept in production
2003 – 2007
Development of converters on behalf of well – known external customers out of wind industry . The largest converter had an output of 6 MVA.
2006
Development HSI100 (100kVA solar inverter)
06/2007
Development HSI500/720 (500kVA – 720kVA Solar Inverter)
2008
Development of wind converters (leading into serial production for 2 to 2.5MVA wind turbines)
2010
Expansion of the production facility and office building
03/2015
Launch of APS – Series 1 st Generation (HW120)
12/2006
Joint Venture between WSTECH GmbH and Siemens AG
09/2017
Commissioning of Switzerland’s biggest Energy Storage System (19.6MW)
05/2019
Commissioning of 205MW photovoltaic plant in Vietnam
11/2019
Conversion of power stack production (automated production and quality control)
03/2020

First service partner in the US (Deutsche Windtechnik)

10/2001
Establishment of FeCon GmbH
2003 – 2007
Development of converters on behalf of well – known external customers out of wind industry . The largest converter had an output of 6 MVA.
2005
Development of inverters for fuel cells for MTU with 500 kW
2006
Development HSI100 (100kVA solar inverter)
2006
Relocation from the technology center to the new facility
06/2007
Development HSI500/720 (500kVA – 720kVA Solar Inverter)
07/2007
Development PV container station up to 1.44MVA
2008
Development of wind converters (leading into serial production for 2 to 2.5MVA wind turbines)
2009
Expansion of the production facility with 1500m²
2010
Expansion of the production facility and office building
03/2013
Launch BAT – Series (Indoor)
03/2015
Launch of APS – Series 1 st Generation (HW120)
2016
APS – Series BDEW certification 12/2016 Renaming of FeCon GmbH to WSTECH GmbH
12/2006
Joint Venture between WSTECH GmbH and Siemens AG
2017
APS – Series UL certification (60Hz)
09/2017
Commissioning of Switzerland’s biggest Energy Storage System (19.6MW)
06/2018
Commissioning of Europe’s biggest Energy Storage System (52.8MW)
05/2019
Commissioning of 205MW photovoltaic plant in Vietnam
10/2019
Realignment of the ESD concept in production
11/2019
Conversion of power stack production (automated production and quality control)
12/2019
Launch of APS – Series 2 nd Generation (HW130)
03/2020
First service partner in the US (Deutsche Windtechnik)
06/2021

Development – Synthic Inertia function

10/2021

20 year anniversary, 5 year anniversary Joint Venture with Siemens

12/2021

Development – APS Full Skid Solution

02/2022

Commissioning of the first 25MVA of contracted 350MVA energy storage inverters with MV-SKID in Ireland

05/2022

Development – Launch of MCS – Series (up to 7500kVA)