Every team gets a carbon budget — the amount of emissions they're allowed for the fest. After the event, their actual footprint is measured and compared.
Trading opens in 3 slots announced by the faculty. Each slot is 15 minutes long. Outside these windows the market is closed.
Use the username (e.g. stall01) and password assigned to your team by the admin. Your carbon balance is pre-set — no sign-up needed.
The marketplace shows all live sell orders and live buy bids in real time. Sell orders show cheapest first; buy bids show highest first.
Deficit team? Go to Buy Credits — enter quantity and the maximum price per credit you're willing to pay. Surplus team? Go to Sell Credits — enter quantity and minimum price you'll accept. Credits are immediately locked (escrowed) when you place a sell order.
The system immediately checks for matches and executes them automatically. See the Matching Logic section below for exactly how this works.
When a trade executes, the buyer's carbon balance increases and the seller's decreases. If a buyer's balance reaches 0 or above after a fill, their remaining open buy orders are automatically cancelled.
Visit My Orders to see all open bids, live listings, and completed trades. You can cancel any open or partial order — unfilled sell credits are refunded instantly. Partially filled cancelled orders show as "Partially Cancelled".
The system uses different priority rules depending on whether you are selling or buying.
The platform records every trade — but actual payment happens offline, in person, after all trading rounds are done.