Renewable Energy

Energy attribute certificates (EACs) are critical to ensuring that a business meets its energy targets with a high quality solution. Our renewable energy solutions meet all Greenhouse Gas (GHG) Protocol requirements, as well as RE100 and CDP quality criteria, providing greater recognition to businesses making a renewable energy claim.

North America

Renewable Energy Certificates (RECs)

Renewable Energy Certificates (RECs) are EACs used to evidence the generation and consumption of 1 MWh of electricity produced from renewable sources in the United States of America and Canada. The use of RECs to support renewable energy claims is supported by the US Department of Energy’s Green Power Network.

Green-e Energy

Green-e Energy

Natural Capital Partners' Enhanced Mix RECs are Green-e Energy certified, and meet the environmental and consumer-protection standards set forth by the nonprofit Center for Resource Solutions, a non-profit based in San Francisco. Learn more at Green-e Energy is the leading independent certification and verification programme for renewable energy in North America.

Green-e Energy certification assures that any REC purchase is verified against rigorous standards and requires all suppliers to disclose the quantity, type, and geographic location of each REC. The programme also verifies that the renewable energy certificates are not sold more than once, and that the purchaser of the Green-e Energy certified REC is the sole owner of the environmental attributes embodied in the RECs purchased.



Guarantees of Origin (GOs)

GOs are non-tangible EACs tradable in Europe, which label electricity from renewable sources to provide information to businesses on the source of their energy. When a company buys GOs, they are cancelled in the electronic certificate registry.

The European Energy Certificate System (EECS):

To standardise national rules for GOs, EECS was created by the Association of Issuing Bodies (AIB) representing 14 national GO issuing bodies. The EECS ensures that the Europe-wide electronic trading of GOs complies with the requirements set out under European Directive 2009/28/EC.

EECS Rules ensure that EECS energy certificate systems are reliable, secure and inter-operable, which enables the owners of EECS Certificates to transfer them to other domestic and international account holders.

Renewable Energy Guarantees of Origin (REGOs)

REGOs are Guarantees of Origin used only in the United Kingdom. Like GOs, they are issued electronically for a controlled quantity of electricity generation (1 MWh). The REGOs scheme is administered on behalf of the Department for Business, Energy & Industrial Strategy (BEIS) in Great Britain, and on behalf of the Northern Ireland Authority for Utility Regulation (NIAUR) in Northern Ireland.



EKOenergy is an international ecolabel for renewable electricity sold to and used by end-consumers, and is available as an additional quality label for use with GOs, International RECs (I-RECs) or local systems across Europe and many countries around the world.

The EKOenergy ecolabel ensures that a part of the green premium (i.e. the price paid for the greenness of the electricity) funds new projects, through EKOenergy’s Climate Fund. Through a strict set of criteria around biodiversity and by ensuring all claims are audited, EKOenergy gives electricity consumers an option to increase the impact of their purchase.

Ecolabels are a way for companies to do more with their purchases. EKOenergy, recognised in the GHG Protocol Scope 2 Guidance, is one such option: "It is a mark of quality which sits on top of tracking instruments” - CDP


Rest of World

The International REC Standard

The International REC Standard (I-REC Standard) is a non-profit foundation with the goal of empowering electricity purchasers with the ability to make renewable consumption choices in any region of the world. It is acknowledged by the major reporting frameworks (The Greenhouse Gas (GHG) Protocol, CDP and RE100) as an appropriate and credible tracking instrument.

This standard provides the blueprint for a tracking system that can be implemented in any country to provide an internationally recognised method for energy attribute allocation. I-RECs represent a contractual agreement between the electricity generator and consumer and can only be redeemed by a single consumer, enabling a reliable and transparent claim.

Natural Capital Partners works closely with The I-REC Standard to bring new renewable energy projects online.



PowerPlus is Natural Capital Partners’ own global renewable electricity product label which delivers additional investments in grid-connected renewable energy. It accelerates the deployment of renewable power generation beyond business-as-usual by matching electricity consumption with renewable electricity production from within the same market.

Australian REC

Australia operates its own REC-registry system, as prescribed by the Renewable Energy (Electri​city) Act 2000​, which is dedicated to facilitating the creation, registration, transfer and surrender of RECs.

Japanese REC

In 2000, Japan established a national Green Power Certificate scheme to enable organisations that are not able to invest in onsite renewables to support renewable energy.

Launched by Sony and Tokyo electric power, the Green Power Certification system is administered by the Green Energy Certification Center, a branch of the Japanese Institute of Energy Economics, and has grown to attract more than 400 leading Japanese companies.

Natural Capital Partners can offer other energy attribute certificates for companies wishing to address their Scope 2 emissions including Tradable Instruments for Global Renewables (TIGRs), and others produced by national systems for example in India, Korea and South Africa.


Green Gas

The Green Gas Certificate Scheme (GGCS) enables the tracking of biomethane (“green gas”) from landfill gas and anaerobic digestion facilities in the UK that inject green gas directly into the gas grid. The GGCS registry tracks the production, sale and retirement of Green Gas Certificates and eliminates the risk of double counting, ensuring the integrity of renewable gas claims being made by consumers.

To find out more about Natural Capital Partners’s renewable energy solutions and standards, visit our website.