Guarantees of Origin: We are offering a variety of different labels

At Bischoff & Ditze energy we can offer you a broad range of Guarantees of Origin (GoOs) label. Our selection of green energy standards includes (but is in no way limited to): RenewablePLUS, GO NEW100, EKOenergy, Green-e/LEED, the I-REC Standard, ok-power, almost all TÜV-Süd EE standards (EE01, EE02 & EE+) and GoOs in general (with or without added features).

Energy Attribute Certificates

We can offer a worldwide array of Energy Attribute Certificates, for example US-RECs for various standards. For more information about Energy Attribute Certificates, please click here.

If you have any questions about our worldwide portfolio, do not hesitate to contact us.


International REC Standard (I-REC) – worldwide system for GoOs from renewables

If you have customers with an international business (or are a transnational business yourself), they may want to account for the origin of the energy they use and prove origin from renewable sources in several different countries. By using the International REC Standard (I-REC Standard) for Guarantees of Origin (GoOs), we can help you meet this challenge and obtain the appropriate GoOs for you, which can be used worldwide. The I-REC Standard for GoOs is already applicable and can be used – for your business or for your customers – in several countries around the globe.

Currently (in June 2016), facilities can be registered and GoOs can be issued & cancelled in accordance with local provisions in (among others) Chile, China, Honduras India, Mexico, Taiwan, Turkey, Uganda and Vietnam. Many other countries like: Brazil, Israel, Japan, Russia, Singapore and South-Africa are currently in talks with the I-REC Standard’s board.

For a more in-depth look at the I-REC-Standard, please click here.

Guarantees of Origin

Do you need to win a tender? Do your customers have additional requirements? Do you have particular request that your GoOs have to meet, like a certain origin, technology, location or age of the plants? Or maybe just need GoOs without any extra features? No problem! We will help you find the best solution for you.


EKOenergy is an eco label for electricity by an international network of environmental organisations. It stands for 100% green/renewable energy. EKOenergy also cooperates with the US American Green-e standard and is compatible and recommended by the US LEED standard. Additionally, climate protection and river restoration projects are financed through a funds-based-model.

Currently, the EKOenergy-label accepts the following European renewable energy sources – with some additional requirements for some of these: wind power, solar power, hydro power, ocean energy (tidal power, wave power, etc.), geothermal energy, bio-energy (solid, liquid and gaseous), landfill gas and sewage gas.

Per MWh (Mega-Watt-hour) sold an amount of at least 0,10 € is paid into the EKOenergy climate fund. For hydro power, an additional amount of 0,10 € per MWh is paid into the environmental fond for river restoration. The EKOenergy label and network are financed by a fee of 0,08 € per MWh sold.

Moreover and additionally, EKOenergy is a network of European environmental organisations that promote and push for developing and establishing renewable energy and for a sustainable, green and climate-friendly energy infrastructure. The EKOenergy network is comprised of a management board, an administration and of supporting advisory groups and workgroups.

Bischoff & Ditze Energy is an accredited vendor of GoOs at EKOenergy as well as service provider for green/eco energy. Bischoff & Ditze Energy is also a member of EKOenergy’s adivisory group.


The German green energy label ok-power was developed, established and certified by EnergieVision e.V., a German NGO. The retailer based version of the ok-power label has a quota based model for achieving its added values. According to which one third of the energy used has to come from plants that are younger than six years and another third has to come from plants younger than twelve years. Additionally, no energy supplier that is involved with coal or nuclear energy may use the label.

TÜV-Süd: EE / EE01 / EE+

The TÜV Süd GmbH is an auditor from Germany that has decided to offer, develop, establish and certify its own labels and standards for GoOs from renewable energy sources. The EE labels of TÜV Süd offer a variety of configurations, which include incentives for building new renewable power plants, this can be achieved through quotas or through a funds based model.

Independent audit

We can have your GoOs be audited by an independent institution, the TÜV Rheinland GmbH. We also offer handling the whole process for you. So that the only thing that is left for you to do is to tell us your requirements and we will take care of the audition process with TÜV Rheinland.

For more information, you can contact us. Malte Mertens and Julia Pösl will do their best to inform you and help you reach your goals, with our products.

International REC Standard (I-REC)

A global system for Guarantees of Origin based on renewable energy

You have international customers who want to account for electricity from renewable sources in different countries? Bischoff & Ditze Energy can offer worldwide clearance of Guaranties of Origin (GoOs) – according to the I-REC standard for origin of electricity from renewable energy sources..

The standard that has been the used for years – in Germany, the European Union, the US and in Australia and which has been utilized by companies and utilities – has now received its own reliable worldwide implementation. By use of the International Standard REC (I-REC Standard) GoOs for power derived from electricity from renewable energy sources may be issued and cancelled for companies in many countries around the world. Among other things, this can be very practical for companies who, for example, do not have their offices only in Europe, but also in other parts of the world – like Turkey, Mexico, China or Taiwan. As of now, the I-REC system has been established in many countries as a single centralized registry, ready to be utilized by enterprise customers on a global scale.


The I-REC standard was established as the result of many years of experience and the extensive knowledge gained from the European system of of Guarantees of Origin for renewable electricity. The European founders and members of the I-REC standard have had over a decade of experience with introducing, establishing and operating such a standard and such a system in Europe. One of these members is Bischoff & Ditze Energy, which was not only one of the first companies to redeem Guarantees of Origin in Germany, but which is also the first German company who joined the I-REC standard. I-REC is a reliable standard and an established system for issuing Guarantees of Origin, for their management in a separate registry (the IREC registry) and for their cancelation. Therefore, it can be used for end users all over the world.

In many European countries, including Germany, GoOs are legally binding and have to be adequately reported. I-REC is a voluntary instrument for businesses and consumers through which they can acquire GoOs from outside Europe of use outside of Europe. Currently (May 2016) power plants can be registered and Guarantees of Origins can be issued in Chile, China, Honduras, India, Mexico, Taiwan, Turkey, Uganda and Vietnam. Other countries, such as Brazil, Israel, Japan, Russia, Singapore and South-Africa, are currently in talks regarding the I-REC standard.

The goal that the I-REC project is designed to fulfil is: to globally allow all consumers to cover their electricity consumption with renewable energy, regardless of where they consume their power and, at the same time, to give consumers the freedom of choosing in which country or region their electricity is produced. The IREC standard specifies the essential rules and regulations for ensuring a transparent and reliable global process that also prevents the double counting of electricity from renewable energy sources.

The Greenhouse Gas Protocol (GHG), within which the internationally recognized standard for the acquisition and the calculation of greenhouse gas emissions was developed, refers to the International Standard REC as a mechanism and instrument for guaranteeing origin for CO2 emission accounting on the global level (Scope 2). If you want to use guarantees of origin from Europe for global production in other countries, we will be at your service with our “Ex-domain tools”. This option is currently available worldwide and is already being practiced. For more information, please contact us.

The International REC standard as a global partner offers numerous advantages:

  • ­­Easy acquisition and use of GoOs for renewable energy outside of Europe
  • Comparable to well established systems in European countries and the US, such as in Germany
  • Transparent, credible and reliable: no double counting of electricity
  • Already established in many countries: hassle-free and easy to use
  • Internationally recognized

If you would like to use GoOs from renewable sources inside and outside of Europe, please contact us. There are many options available and already being practiced, worldwide.

For more information you can contact Malte Mertens or Julia Pösl.

Video: How The International REC Standard works