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)



2003-2007


2006


06/2007


2008


2010


03/2015


2017


06/2018


10/2019


12/2019


09/2020


10/2021


02/2022


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