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December 16, 2025

Clean Power Index expands to track nuclear and renewable tariff matching

A month after launch, we're adding the two most requested features: nuclear tracking and renewable tariff scores.

November 4, 2025

Matched joins Open Energy to bring temporal matching data to scope 2 carbon accounting

Carbon accounting has emerged as one of the most immediate applications for temporal matching data. Companies calculating Scope 2 emissions have started asking whether they can use our underlying data. The answer is yes—and we're starting with Open Energy.

October 27, 2025

Matched Clean Power Index is live

Many British consumers pay for 100% renewable electricity. But how much are they actually getting? The Matched Clean Power Index reveals the truth behind green energy claims.

October 22, 2025

Matched Methodology Explained: calculating how renewable each supplier really is

We've developed a methodology that reveals what percentage of your electricity is actually renewable—measured half-hour by half-hour. Some suppliers delivering "100% renewable" electricity score as low as 11% when we apply temporal matching. Here's exactly how we calculate these scores.

October 20, 2025

Renewable tariff methodology update & So Energy's score

We've updated our methodology to calculate matching scores for renewable tariffs. So Energy is the first supplier to partner with Matched to validate their scores under this revision.

October 15, 2025

Matched and Granular Energy: building transparency in the 24/7 clean energy space

We're pleased to announce a partnership with Granular Energy, the SaaS platform helping suppliers build and deliver hourly matching clean energy products.

October 10, 2025

GHG hourly matching: from implementation concerns to market reality

The shift to hourly matching in GHG Scope 2 emissions reporting is an immediate opportunity. While stakeholders cite implementation concerns, the data already exists and is publicly available.

October 7, 2025

What your supplier actually generates (and why it matters for carbon accounting)

You're paying for 100% renewable electricity. Your supplier claims 100% renewable on their tariff. But hour by hour, what renewable generation have they actually bought? Matched uses public data to provide the answer.

September 28, 2025

Tracking supplier demand

Before we can assess how well renewable supply matches customer demand, we need to understand what that demand actually looks like. For the first time, newly available public data lets us track exactly when Britain's energy suppliers are serving power to their customers.

September 3, 2025

UK energy suppliers’ renewable claims are built on a twenty-year-old loophole

Consumers aren't getting what they think from renewable tariffs. Joe Kwiatkowski, founder of the transparency initiative Matched, explains why regulation is outdated and how new data sheds light on the gap between promise and reality..

July 6, 2025

A tale of two suppliers

Both suppliers market themselves as '100% renewable,' but one delivers 80% renewable electricity to customers on an hourly basis while the other delivers just 60%. We explore how portfolio diversification and procurement strategies create vastly different outcomes despite identical branding.

April 18, 2025

In the news: 'everyone is eager for change'

Matched is quoted in an article about the need for greater transparency in the renewable energy market.

March 7, 2025

Good Energy details their renewable energy supply

Following conversations with Matched, Good Energy has shared data-backed information about their renewable energy supply.