RE100

RE100 is a global initiative that brings together companies committed to sourcing 100% of their electricity from renewable sources. It is led by the organisation Climate Group in partnership with the Carbon Disclosure Project (CDP). It is one of the strategies companies use to cut the emissions linked to their electricity consumption.

How RE100 works

Companies joining RE100 make a public commitment to cover all of their electricity consumption with renewable sources. Each member sets its own target year and reports its progress every year, which makes it possible to follow commitments transparently. The initiative focuses on the electricity a company uses in its offices, plants, warehouses and other facilities.

Ways to source renewable electricity

Companies can combine different instruments to meet their target, depending on the country and the type of facility:

• On-site generation: renewable installations, such as solar panels on company roofs or land, that supply the site of consumption directly.
• Power purchase agreements (PPAs): long-term contracts with a renewable energy producer to buy the electricity it generates.
• Guarantees of Origin: certificates showing that a given amount of electricity was produced from renewable sources. You can read more about Guarantees of Origin (GO).
• Other recognised instruments: depending on the market, certificates such as Renewable Energy Certificates (RECs) are also used.

RE100 and your carbon footprint

Sourcing renewable electricity is reflected in the emissions inventory, specifically in Scope 2 emissions. Under the market-based method, a company calculates these emissions using the contractual instruments it can evidence, such as PPAs or Guarantees of Origin. That is why keeping contracts and certificates in order matters as much as measuring the consumption of each facility. Many companies pair RE100 with other climate commitments, such as Science-Based Targets (SBT).

Why it matters for your company

Joining RE100 means defining a roadmap for generating and buying renewable electricity and documenting every step. Anyone reporting a carbon footprint needs reliable consumption data per facility, together with the contracts and certificates that back up the origin of the electricity, and must be able to show them in a verification.

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