---
title: "GP JOULE EPC Reußenköge/Geislingen am Steige, Germany recertified to ISO 9001 and ISO 14001; ISO 45001 first time"
sdDatePublished: "2026-04-28T06:20:00Z"
source: "https://www.gp-joule.com/fileadmin/content/news/2026/EN/260427_PM_EPC_ISO-Zertifizierungen_EN.pdf"
topics:
  - name: "renewable energy"
    identifier: "medtop:20000257"
  - name: "solar power"
    identifier: "medtop:20001209"
  - name: "construction and property"
    identifier: "medtop:20000235"
  - name: "business governance"
    identifier: "medtop:20000199"
  - name: "environmental, social and governance policy (ESG)"
    identifier: "medtop:20001230"
locations:
  - "Germany"
  - "Nordfriesland"
  - "Ireland"
  - "Göppingen"
---


GP JOULE EPC Reußenköge/Geislingen am Steige, Germany recertified to ISO 9001 and ISO 14001; ISO 45001 first time

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Press release

GP JOULE’s plant engineering division is now triple-certified by TÜV Rheinland

ISO certificates for occupational health and safety, quality, and sustainability
___________________________________________________________________________

Reußenköge/Geislingen an der Steige, 27 April 2026

GP JOULE EPC, a general contractor specialising in renewable energy plants, has
successfully been recertified to the ISO 9001 (quality management) and ISO 14001
(environmental management) standards. At the same time, the company was
certified to ISO 45001 for occupational health and safety management systems for
the first time. GP JOULE EPC specialises in the technical planning, construction, and
grid connection of megawatt-class ground-mounted photovoltaic systems.

As part of the certification audit, all relevant business areas, locations, and processes were
comprehensively reviewed. The auditors examined aspects such as strategic direction,
operational implementation, documentation, and effectiveness monitoring across various
areas. With a pleasing result: the certifications awarded underscore GP JOULE EPC’s
commitment to health and safety, the highest quality and environmentally responsible
practices.

“These certifications reflect our commitment to being a responsible partner in plant
engineering,” says Meik Georg Gessner, Managing Director at GP JOULE EPC. “Every
construction site is unique, and we integrate quality, environmental awareness, and
occupational safety equally throughout every project phase.”

In addition to GP JOULE EPC GmbH & Co. KG, its subsidiary GP JOULE EPC Ireland
Limited has also been certified.

DIN standard for safety, quality, and sustainability

With its recertification to ISO 9001, GP JOULE EPC confirms that all its processes, products
and services are consistently aligned with the highest quality standards and that it is
continuously optimising its internal procedures. The renewed certification under ISO
14001 demonstrates commitment to sustainable business practices and the responsible
use of natural resources.

Initial certification to ISO 45001 attests to a systematic and effective management system
for occupational health and safety. This seeks to minimise risks, continuously improve
working conditions, and sustainably enhance the well-being of all employees, service
providers, and partner companies.

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“Through our certifications, we demonstrate that we systematically take environmental
considerations into account, implement high standards of health and safety at work, and
guarantee consistent quality – thereby taking our responsibility towards our employees,
the environment and our business partners seriously,” says Maximilian Sellmaier, Quality
Management Officer at GP JOULE EPC.

"Partners, suppliers, and service providers seek reliable, safe, and high-quality services,"
says Meik Georg Gessner: “Our certified management systems guarantee exactly that:
they increase delivery and planning reliability, ensure clear, transparent processes, and
minimise risks in joint projects and business relationships. This enables us to contribute to
quality assurance and the further development of the entire industry.”

This success confirms GP JOULE EPC as a reliable partner for investors, energy suppliers
and businesses, whilst also sending a clear signal of continuous improvement and
responsible conduct.

Images

Page 3 of 3

Caption: The plant engineering firm GP JOULE EPC has been awarded three certificates
by TÜV Rheinland.

Image rights: Jörn Lehmann/GP JOULE, image can be used for free in conjunction with
this press release

About GP JOULE
GP JOULE is an integrated energy supplier active across the entire energy value chain:
from generation to utilisation – and from consulting through to financing, project planning,
construction, and service. GP JOULE produces and markets wind and solar energy, green
hydrogen and heat, implementing the energy where it is most effective: in electric and
hydrogen mobility, households, and industry. Based in Germany, GP JOULE has been
shaping Europe's energy future since 2009. For a secure, independent, and sustainable
energy supply. For 100% renewable energy for everyone.

Press contact
Jürn Kruse
Corporate Communications
GP JOULE Group
j.kruse@gp-joule.de
Tel. +49 (0) 4671-6074-213
Mobile +49 (0) 160-1540265

GP JOULE GmbH Cecilienkoog 16 • 25821 Reußenköge, Germany • www.gp-joule.de