Origination
Utility and corporate PPAs made to measure – we develop green power supply contracts for your individual needs.
About Origination
We supply the electricity of the future!
greentech is your partner when it comes to purchasing electricity from renewable energy projects. We design power supply contracts for utilities, municipal utilities and industrial customers in the form of utility and corporate PPAs. In doing so, we draw on a wide range of new-build projects from our own project development in different countries and with varying output. This enables us to design and implement tailor-made green power contracts according to your individual needs and to substantiate them with corresponding certificates of origin.
Green power supply with
proof of sustainability
A Power Purchase Agreement (PPA) is an electricity supply contract between two parties. In the context of green power supplies, a distinction is made between a “Utility PPA” and a “Corporate PPA”. In addition to the electricity supply, the associated guarantees of origin are also supplied. A guarantee of origin is issued per MWh of electricity produced and proves that this MWh originates from a specific plant and energy source (e.g. solar).
Utility PPA
However, based on the guarantees of origin, the energy supplier can prove to the electricity consumer that the electricity supplied to him comes from a specific energy source and plant.
Corporate PPA
Corporate PPAs are relevant for groups that require large amounts of energy for production or ongoing operations and want to reduce their COâ‚‚ footprint.
In the long term, it is expected that the legal hurdles to concluding corporate PPAs will continue to fall and that smaller electricity consumers will also have direct access to green power from plant operators.
Added value of green power supply contracts through greentech
Flexible terms
Individual electricity power offer
Rapid start of delivery
Different types of PPAs possible
Individual, needs-based design
ESG-compliant green power supply
Experienced & reliable partner
Years of experience
employees active in 6 European countries
of projects in the development pipeline
of ground-mounted solar plants constructed
of technical advisory provided
under operational management
Contact person
Our specialist and your contact for all questions regarding origination, PPAs and green power supply contracts.
Christian Pfeffer
Senior Originator
Christian Pfeffer and his team are responsible for marketing the electricity and guarantees of origin from new and existing projects to utilities and corporates. He studied Renewable Energy Management as an undergraduate at FH Weihenstephan and Renewable Energy in his master’s program at TH Köln. Before joining greentech in mid-2023, Christian initially worked in the financing of renewable energy assets at various companies, where he also helped to establish and manage the origination department. He thus has several years of experience in the origination and financing of renewable energy plants in the multi-MW class.
Malte Rittmeyer
Originator
Malte Rittmeyer joined greentech as a working student in 2021 as part of his industrial engineering studies at HWTK Leipzig in Germany. In the Asset Management department, he was responsible for several photovoltaic portfolios of external customers with a total of around 50 systems and a total output of around 150 MW. After completing his studies, he joined the origination team in spring 2023 and, together with Christian Pfeffer, is responsible for all electricity marketing issues in the German, UK and Italian markets.
Ingo Rehmann
Chief Executive Officer (CEO)
Ingo Rehmann is the head of the Management Board of the greentech Group, where he leads the company's corporate and strategic development efforts. He oversees the Central Services, which act as an internal provider of essential group-wide functions, including Accounting, Human Resources, Corporate Development, and IT Services. As CEO, Rehmann serves as the spokesperson for the group and represents greentech externally. Together with the CFO, he is also responsible for reporting to shareholders and stakeholders.
Ingo Rehmann has been active in the PV industry since 2005. He held various management positions at Conergy AG, including in the areas of M&A and as Head of Market Intelligence. In 2008, he founded greentech and developed the company into one of the largest independent PV O&M and engineering companies in Europe. He studied business administration in Germany, Australia and Spain.