About greentech

greentech is a leading expert when it comes to the development, engineering, building and operation of photovoltaic power plants


we develop | we build | we service | new energy


greentech is a leading expert when it comes to the development, engineering, building and operation of photovoltaic power plants in Europe.

The company was founded by Ingo Rehmann in 2008, with the main focus on photovoltaic services. Initially, the company specialised in the commercial and technical operation of PV power plants. As an experienced and independent service provider, offering modular services, greentech had a rapid growth in these areas, adding more services along the way, such as owner’s engineering and technical advisory services. With the acquisition of Conergy Service GmbH in 2016, the company became the largest PV power plant operations provider in Europe. In October 2019, the Hamburg-based entrepreneur Erck Rickmers acquired the majority share of greentech. His aim was to accelerate the company’s growth in the existing business sectors, and to enlarge its range of services with PV project development – a task which he tackled very successfully, together with the management team. Since Ocotber 2021, the range of services has been completed by the area of plant construction. This means that greentech now covers the entire value chain in the PV downstream sector.

Today, as part of the E.R. Capital Group, greentech offers new solutions and services in terms of the planning, development, building and operation of PV power plants, whether for the company’s own portfolio or for third parties. With our team of over 100 employees, we are active in 10 countries and have experience from over 400 PV projects.

This makes greentech one of the largest independent integrated specialists for solar power plants in Europe.


Project development with greentech projects GmbH

greentech projects GmbH is a project developer for large ground-mounted photovoltaic power plants in the MW range. We develop projects from the initial idea, all the way to implementation. In so doing, we cover both the full development risk and we also finance the project development costs.

Our project development departments are currently focused on Germany and the United Kingdom. We cover the complete process, from land acquisition, to the approval procedure, technical pre-planning and grid connection, all the way to financing and offtake structuring. We develop projects with the goal of keeping and operating them as our own holdings, or selling them on the market.

greentech projects was founded in 2019, as a subsidiary of greentech holding, which is part the E.R. Capital Group, which combines Hamburg-based entrepreneur Erck Rickmers’ activities in the photovoltaic sector. Through its affiliate company, greentech energy services, greentech projects has access to all the technical planning resources that are required for the development of photovoltaic facilities.


Comprehensive EPC services by greentech systems GmbH

greentech systems is an expert in the construction of turnkey PV plants in the multi-megawatt range. As an experienced EPC partner, we take on all the necessary steps of plant construction: from plant design to component procurement and construction to handover into the operating phase, we implement ground-mounted PV plants, rooftop plants as well as plants with storage integration. We take on the appropriate role for your project and, in addition to turnkey plant construction (EPC), also offer you the option of providing components (EPC-light), or manage the EPC process on your behalf (EPC-M). We always think in terms of solutions and are at your side reliably and flexibly.

Our qualified team with many years of experience builds high-yield and durable PV power plants. In addition, our connection to the other divisions of the greentech Group enables us to think “from the same mould” when it comes to the development, construction and operation of PV power plants. This enables practical, efficient and successful best-practice solutions in the long term.


Technical and commercial operation through greentech energy services GmbH

With its interdisciplinary team of experienced experts, greentech offers a full-service operating concept for PV systems of all sizes. This includes adherence to all safety standards, quality assurance and return maximisation through PV projects. greentech works independently of component manufacturers and general contractors and, therefore, exclusively represents the interests of the facility owners.

With a specialised service offer and a current portfolio of more than 900 MWp, greentech counts as one of the largest independent operational managers in the world. Our growing customer base includes private plant owners, public utility companies, regional and international utilities, insurance companies and investment funds. Alongside conventional services, such as technical and commercial operation, we also offer additional services across all project phases.


Engineering & Technical Advisory by greentech energy services GmbH

An individual and appropriate operational management concept and its efficient implementation form only one part of a successful plant life. Sustainable economic success requires a holistic view of the power plant and comprehensive solutions in all project phases: From the initial site analysis and the preparation of bankable yield reports to technical construction support and the implementation of thermographic investigations, technical due diligences or repowerings, we are at your side as consultants throughout the entire life cycle of your plant.

With a team of experienced technicians and engineers, our many years of plant and operational management know-how, and a professional and transparent project management, we ensure a high quality of service and the success of the projects.