PROMETHEUS · EMISSIONS TRADING SIMULATOR

Carbon markets, learned by trading in one.

Prometheus is a hands-on emissions trading simulator. Run a firm, weigh abating against buying allowances, and watch a live market discover its price.

Free · sign in to enter

EUA · spot
58.20
+2.1%
order bookprice · size
58.4060
58.3590
58.30180
58.25340
spread0.10
58.15300
58.10210
58.05140
58.0075
last trades
12:04:5158.20×120
12:04:4758.18×60
12:04:4258.21×200

7 India CCTS sectors·cap-and-trade + intensity modes·benchmarking / grandparenting / hybrid·multiplayer·open source

THE MARKET COMES ALIVE

From a flat line to a living market

The journey every emissions trading system makes — from obligations on paper to a price discovered in the open. Prometheus simulates each stage.

57.21 +0.4%

01 · INDIA'S CCTS

A real scheme, modelled faithfully

India's Carbon Credit Trading Scheme is the simulator's first-class scenario — real sector baselines, emissions intensities, and abatement costs, with benchmarks that tighten annually and settlement computed after each period, the way a rate-based scheme actually works.

More on the India CCTS simulator

57.58 +0.6%

02 · COVERED SECTORS

Seven sectors, seven cost structures

Each obligated sector enters with its own production baseline, growth rate, and marginal abatement cost curve — so a refinery and a textile mill face the same market with very different options.

  • Aluminium
  • Cement
  • Chlor-alkali
  • Paper & pulp
  • Petrochemicals
  • Textiles
  • Refineries

What a MAC curve is

58.06 +0.8%

03 · MARKET ARCHITECTURE

Cap-and-trade vs intensity

An absolute system fixes the total quantity of allowances and tightens it over time. An intensity-based system sets obligations per unit of output, so the constraint scales with production. Prometheus models both — side by side.

── absolute cap·╌╌ intensity-based

Absolute caps·Intensity systems

58.94 +1.5%

04 · PRICE DISCOVERY

A price discovered, not assumed

Every order meets a continuous double-auction order book. The clearing price emerges from firms' actual abate-or-buy decisions — supply and demand discovered in real time.

Read the methodology

61.30 +4.0%

05 · EXTERNAL PRESSURE

CBAM raises the stakes

The EU's Carbon Border Adjustment Mechanism prices the carbon embedded in imports like cement and aluminium — sectors India's CCTS covers. Lower emissions intensity means a smaller bill at the border, and the pressure shows up in the market.

How CBAM works

HOW IT WORKS

Five steps from cap to compliance

Every game runs the same loop a real emissions trading system does — you make the decisions, the market sets the price.

  1. 01

    Receive your cap

    Each firm starts with a compliance obligation — an absolute allowance budget under cap-and-trade, or an emissions-intensity benchmark per unit of output under an intensity-based system.

  2. 02

    Choose abatement investments

    Read your marginal abatement cost curve and decide which emission cuts are worth funding, working from the cheapest tonnes upward.

  3. 03

    Trade allowances

    Buy or sell allowances with other firms on a live order book whenever the market price diverges from your own cost of abating a tonne.

  4. 04

    Watch prices emerge

    A continuous double auction turns every firm’s decisions into a clearing price — supply and demand discovered in real time, not assumed.

  5. 05

    Analyze the outcome

    At period end, settle against your cap: surrender allowances, bank surpluses, or pay penalties — then review profits, emissions, and compliance.

PUBLIC LAUNCH · COMING SOON

Step into a living market.

This is what a market that found its price looks like. In the simulator, you are one of the firms making it move — abating, trading, and settling against your cap.

Free · open source · runs in the browser

EUA · spot
€61.30
▲ +4.0%

price discovered · continuous double auction