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Berth Specula

In development

Free, keyboard-driven dashboard for the European electricity and gas markets: prices, generation, flows, storage – no account, no trading.

Berth Specula brings published data on the European electricity and gas markets together in one interface, operated via a command line, the module bar or the mouse. It is based on published third-party data; every panel shows its source and data timestamp. From this data, Specula calculates indicators such as residual load and renewable share and explains the underlying relationships in its own learning module.

For energy traders and analysts, industrial and commercial energy buyers, journalists and policy, students.

Insight

All images show the development build with demo data.

Dark interface with a map of Europe: bidding zones with prices, lines for cross-border flows and marked power plant outages; on the right, tables with day-ahead prices, grid frequency and price history.
Start view with map of Europe: day-ahead prices per bidding zone, cross-border flows and outages. Demo data, not real market data. © OpenStreetMap contributors
Stacked area chart of electricity generation by source over two days with a dashed residual load line; next to it indicators for renewable share, residual load and CO₂ intensity, and a calculator.
Generation by source with renewable share, residual load and estimated CO₂ intensity. Demo data.
Learning module with a table of contents on the left and an explanatory text on residual load with a definition and a schematic chart of load, solar generation and residual load.
Learning module: own explanatory texts on residual load, merit order and the day-ahead market.
Bars showing gas storage levels per country against a grey band of the past five years, with a country table below; on the right a country overview with price, generation mix, load, cross-border flows and installed capacity.
Gas storage levels per country with five-year band and country overview. Demo data.

What it shows

  • Day-ahead electricity prices per bidding zone
  • Price spreads between zones
  • Generation by source, actual and forecast
  • Load, actual and forecast
  • Cross-border flows and import/export balance
  • Power plant and grid outages
  • Grid frequency
  • Installed capacities
  • Gas storage levels, EU and per country
  • LNG terminals
  • Calculated indicators: residual load, renewable share, import dependency, storage trajectory, CO₂ intensity (estimate)
  • Tools: calculator, alerts, watchlist, notes – all stored locally in the browser
  • Learning module and glossary

Calculated values are estimates based on assumptions; forecasts are those of the respective source.

Access

  • In the browser

    No account, no login, free of charge. Operated via command line, module bar and mouse.

  • On any device

    Desktop and tablet in full, phone in reading mode with one panel.

  • Stays with you

    Layouts, watchlist, notes and alerts stay in the browser and never leave the device. Entries in the calculator are not transmitted.

What Specula does not do

  • No trading, no orders, no connection to exchanges or brokers
  • No own forecasts and no recommendations
  • No investment, procurement or energy advice
  • No tariff or supplier comparison
  • No exchange prices (EEX, ICE, TTF, Brent) and no CO₂ allowance price
  • No AI features; all calculations are deterministic
  • No login, no user accounts, no tracking, no advertising

Data and technology

The data comes exclusively from sources whose terms permit public reuse; every panel shows its source and data timestamp. The sources are retrieved by the Berth server, never by the users’ browser.

Hosting is in a data centre in the EU, without cookies, without tracking, without analytics and without error reports to third parties. The server only stores access logs with truncated IP addresses for 14 days.

The browser communicates exclusively with the Berth server; all fonts and map tiles are self-hosted. Map data: © OpenStreetMap contributors.

Origin and contact

Berth Specula is a project of the Berth brand. Manuel Wechner is responsible; the legal notice and privacy policy of berthsoftware.com apply until the product has its own pages.

Contact: office@berthsoftware.com