What is an energy attribute certificate?

An energy attribute certificate (EAC) is a tradable record that one megawatt hour of electricity was generated from a specific source, usually renewable. Guarantees of origin in Europe, RECs in North America and I-RECs in many other markets are all EACs. A power purchase agreement (PPA) is a long-term contract to buy electricity from a named generator.

Why does a supplier that has not disclosed count in full?

The view is for planning procurement, so it credits only the low-carbon electricity a supplier has disclosed. Where the share would otherwise be modelled from a grid average, the whole allocated volume stays in the opportunity until the supplier discloses, which is also the reason to request that disclosure.

Where to plan EACs and PPAs across your supply chain

Platform

Features

Electricity

EAC and PPA opportunity across your suppliers

DitchCarbon's Energy Map sizes the supplier electricity that energy attribute certificates or power purchase agreements could address, in megawatt hours by organisation and country.

Where should we plan energy attribute certificates or PPAs with suppliers?

Choose the EAC and PPA view and the Energy Map counts each organisation's allocated electricity that is not yet low-carbon, using the low-carbon share the organisation has disclosed. The result is a megawatt hour figure per supplier and per country, with the share of your embodied emissions it represents.

A renewable electricity programme for suppliers starts with a volume and a location, because certificates and PPAs are bought in megawatt hours on a specific grid. Most teams have neither number for their supply chain.

This view supplies both. For each organisation it takes the electricity allocated to your spend and multiplies it by the part its own disclosure does not show as low-carbon. An organisation that has not disclosed a low-carbon share counts in full until it does, so the figure is the volume to plan for today, and it falls as suppliers disclose.

The headline tiles give the total opportunity in megawatt hours and the share of your embodied emissions addressable with EACs or PPAs, calculated from each region's grid factor. The map labels each country with its volume, and the table sorts suppliers within it.

Open a supplier and the drawer states the approximate megawatt hours to plan for and the disclosed share it rests on. Where a supplier discloses fully and still runs on a higher-carbon mix than its home grid, the suggested action is renewable procurement, and the request can go out from the same screen.

Old way

A supplier renewables ambition with no volume attached.

new way

Megawatt hours to plan for, by supplier and by grid.