One data foundation. Every tool for the path to net zero.
Every Perse product stands on the same foundation: 35 UK datasets, matched address by address to more than 30 million buildings and meters, with our own models turning that raw data into answers you can act on. Start with an API, an MCP server or a ready-made application — and add products as you grow.
Everything we hold about a UK building
One address is the key. Perse matches it against every dataset we hold and joins them to a single building record — property, network, generation and cost, all resolved to the same UPRN.
No manual reconciliation, no spreadsheets in between.
The models that turn data into decisions
Raw records don't answer questions. These are the models every product calls — the same ones, whether you reach them through an API or a dashboard.
The keystone. Matches a business or domestic address to every dataset we hold — 10 to 100,000+ in one upload.
Finds the registered electricity and gas meters behind an address, with a confidence score on each match.
Fills gaps, profiles half-hourly usage and forecasts demand where metered data is thin or absent.
Roof-level generation from real pitch, orientation and shading — PVGIS-backed, with battery sizing and 30-year projections.
Emissions baselines and ranked retrofit options with cost, saving, payback and a stated confidence.
Breaks a bill into the 59 network, environmental and regulatory charge categories that sit above the commodity.
Prices a site's real half-hourly usage against live supplier tariffs — standard, time of use, flex and passthrough — so you can see the true cost of each, side by side.
Three ways to reach it
Same data, same models, three front doors — for engineers, for agents, and for the people who just need an answer.
APIs
Every dataset and model behind one versioned REST API — tabular and rate-limit aware. For product teams building their own experience.
MCP
NewA Model Context Protocol server that hands the same datasets and models to your AI assistants and agents — ask in plain English, get context aware answers to build your products.
SaaS
Our Appstore is a web UI to access our data services. Browse, query and export the same datasets in a clean web app — no code, no integration project.
Solutions built on the foundation
Each product is a packaged answer to a specific job — assembled from the datasets and models above. The chips on each one show exactly what it stands on.
Optimise
From Energy and Carbon reporting for your regulatory obligations to instantly personalised low-carbon options — solar PV, heat pumps and more — without the need for a site visit. From a detailed solar and battery assessment on a single site to completing assessments across hundreds of sites. One stop shop for all your needs, at your scale.
Energy Procurement
Tariff comparison & switching, under your brand
For homes and businesses of all sizes — with white-label journeys you can offer under your own brand. From the team who also power Compare the Market and Scottish Power Business.
Open to the public — and a value-add for your customers
Households and businesses can use these directly from Perse and our consumer brand, Labrador. Intermediaries can also offer any of our products as whitelabel value propositions for your customers. Easy add-ons to our core offering.
Demand Flexibility
Homes and businesses get paid to consume energy at different times — part of the NESO Demand Flexibility Service. Join the 1.6m already being paid to shift.
ConsentWallet
Occupants, bill payers and landlords choose how they share their data. Opt-in and reversible — turn anything off and sharing stops immediately.
One foundation, every industry problem
The same data and models, assembled differently for each challenge. Read each row left to right: the problem, what we join to answer it, and the product that delivers it.
Which product is right for you?
The full Perse toolkit
Five products, and every tool that sits inside them. All of it standing on the same data foundation.
Optimise
The analysis platform: cost, carbon and investment decisions across one site or a whole estate.
Explore Optimise →Energy Procurement
Switching and quoting journeys you can run yourself or put your own brand on.
Explore Energy Procurement →Demand Flexibility
Turn consented demand into revenue across every UK flexibility market.
ConsentWallet
The permission layer customers control themselves — opt-in, transparent and reversible.
APIs, MCP & SaaS
Three front doors onto every data service and product API we run.
See the access layer →See how these products fit together
Book a demo and we'll map the right starting point for your team.