Company Summary

Company Overviews

4fores is fast-growing applied-R&D, field-testing and power electronics company working in the Renewable Energies sector (Wind Energy, Photovoltaics and CHP plants) providing to our customer innovative solutions.

Having a wide applied research in field experience and simulations for grid integration of Renewable Energy systems. We are your independent and impartial partner for ACCREDITED CERTIFICATION for field-testing and measurement compliance of the main NETWORK/GRID CODES (FGW TG3/TG4, P.O.12.2/P.O.12.3, ERDF-PRO-RES_64E/RTE Article 8.3, IEC 61400-21, MEASNET, ) using our patented Mobile Labs' Technology for LVRT and HVRT tests.

We design and develop standard and customer-tailored communication and control (SCADA), protection and fault localisation and grid quality measurement systems and equipment for your Renewable Energy facility. With an agile, innovative and young spirit, 4fores offers to your company a highly personalised service

These are our products and services:

- Design, manufacturing and commissioning of LVRT/HVRT test equipment for Renewable Energy facilities (Patented technology for Mobile Laboratories)

- Low/High Voltage Ride Through (LVRT/HVRT) services for site field-testing in wind turbines and photovoltaic inverters for international grid codes (Spanish, Germany, France, IEC 61400-21)

- Dynamic studies on modelling and simulation of the impact of Renewable Energies in the electric power systems and for and Grid Code requirements compliance.

- Power quality measurements according to IEC 61400-21.

- Design and manufacturing of SCADA (Control and Communications), Fault Localisation of electrical equipment and mobile substations for Renewable Energy applications

- Power converters for Small Wind Turbines (SWT) and hybrid Renewable Energy systems

Rating Reviews

Rating is calculated based on 1 review and is evolving.

Featured Reviews

Software Developer
3.7
24 September 2026
Good Team Dynamics, Management Communication Could Improve
Pros: The best part of working at 4fores was definitely the people. My colleagues were incredibly collaborative and always willing to help out, fostering a real sense of teamwork. The projects often involved cutting-edge technologies, which was great for skill development in the cloud computing and software services industry. The office in Zaragoza is well-equipped and in a convenient location.
Cons: While the team is fantastic, there were times when top-down communication from leadership felt a bit unclear, leading to some confusion on project priorities or strategic direction. Sometimes, processes could be a bit slow to adapt, causing minor delays. Improving transparency on certain decisions would be beneficial.
Advice to Management: Focus on clearer, more consistent communication from leadership regarding strategy and project roadmaps. Consider implementing more agile feedback loops to ensure everyone is aligned.
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