FREE ZCO TOOLS

Practical tools for early climate action.

Explore an idea, organize the information you already have and identify what to verify next. No account or payment required.

PUBLIC BETA · OPEN DATA

CarbonView

Explore country-level greenhouse gas emissions, compare the same period across years and inspect sector trends. Switch to Great Britain’s electricity carbon intensity for a time-specific electricity emissions calculation.

Open CarbonView →Explore the Data Source ↗
Real public dataClimate TRACE, Global Carbon Budget and NESO, with source and retrieval timestamps.
Map, trends and calculationsCountry search, sector filters and same-period comparisons.
Clear data boundariesGlobal emissions estimates and GB electricity intensity are shown separately.
SELF CHECK · EN / 中文

CarbonLedger

Build a traceable Scope 1, 2 and 3 inventory with activity data, explicit emission factors and unit checks. Compare scenarios, identify evidence gaps and export your work. Inspired by the data design of mindsongreen/OpenGHG.

Open CarbonLedger →Explore More Tools
Traceable calculationsKeep factor sources, years, units and evidence beside every result.
Local and exportableBrowser calculations, project JSON, CSV details and printable reports.
Built for self-checkingSeparate Scope 2 methods and review missing inputs before using results.
AVAILABLE NOW · EN / 中文

EnergyPlan for Island

Start with an island name, confirm its location and collect the essential facts about electricity and diesel supply. Add solar, wind and battery information when available, then explore hourly energy and financial scenarios.

Open EnergyPlan for Island →Download Local Version
No account requiredBegin immediately and export your project files.
Browser-based calculationsCore screening and uploaded curves are processed in your browser.
Built for early screeningClarify missing inputs before engineering and commercial due diligence.
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