Early access
    Founding users help shape what we build next, from data coverage to the questions it answers.Get in early and the tool grows around how your desk actually works.Looking for early users across trading, consulting and renewable assets.Founding users help shape what we build next, from data coverage to the questions it answers.Get in early and the tool grows around how your desk actually works.Looking for early users across trading, consulting and renewable assets.

    Rosenfeld
    Plain English for GB power market data

    You were never the bottleneck

    Built for the people who
    have the questions.

    Available today. Log in and try it. No procurement, no waitlist, no demo first.

    Rosenfeld answers questions about the GB power market. Ask in plain words and get the data back in seconds, with the chart already drawn.

    Watch it work. A real question, answered now
    ROSENFELD · LIVE
    BMRS · Elexon · synced now
    YOU
    What's the GB wind capture price by month over the last 12 months?
    R
    Wind earns 80-85% of baseload in the shoulder seasons and 95-98% in winter. The cannibalisation is seasonal, not annual.
    J
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    S
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    D
    J
    F
    M
    A
    M
    J
    Wind capture price, % of baseload, trailing 12 months
    FOLLOW-UP
    Ask your own question… - sign up now
    TRY
    Every figure above is live BMRS data. Ask a follow-up and it keeps the thread.

    What Rosenfeld is

    A market analyst for GB electricity.

    ›“battery dispatch in the balancing mechanism last week”
    ›“which interconnectors were flowing during the price spike”
    01
    You ask in plain English

    The question you'd hand a colleague, typed the way you'd say it.

    02
    It resolves the entities

    Units, fuels, interconnectors and settlement periods, matched to the right BMRS / NESO records.

    03
    Queries and aggregates

    Pulls the data and rolls it up across the periods that matter to the question.

    04
    Returns a validated answer

    A checked figure or finding, with the chart already drawn.

    No APIs. No SQL.
    No spreadsheets.
    Best for

    Energy professionals who know their questions but don't want to build the pipeline to answer them.


    Who we built it for

    Three jobs, one direct line to the data.

    You already know your market. Rosenfeld gives you a direct line to the BMRS data behind it, so getting an answer no longer depends on SQL or a pipeline you have to build first.

    I.

    The trading desk analyst

    Pulling and reformatting BMRS to answer one question, then missing the trading-relevant signal in the next four. Just ask, and get the answer while it still moves the book.

    II.

    The independent consultant

    Client deliverables capped by hours of manual wrangling. Skip the BI stack you can't justify. Pull what you need, write up the finding, send it on, and take on more clients.

    III.

    The renewable asset manager

    Curtailment forensics. Capture-price drag. Was output low because of weather, or because the asset has a problem? The answer without raising a ticket.

    New to the desk? You don't need sign-off to try it. The free trial just works.

    Something more specific?

    Or we build it around your shop.

    The product answers the questions most desks share. If your team needs it shaped to your own assets, your own portfolio, or a workflow the standard tool doesn't cover, that is work we take on.

    Tell us the problem you keep hitting. It reaches the people who build Rosenfeld, and one of them replies.

    ›Your own assets, units and portfolio loaded in
    ›Reports and exports in the shape your clients expect
    ›A question your current stack cannot answer
    Start a conversation
    Goes to a builder, not a sales team. A real person replies, usually within a day.