We have borrowed this concept from the European Union. The basic idea is that each time your asset: power plant, mine, or rig releases CO2 into the athmospehereatmosphere, you are required to pay.
The goal is to make poluting industires polluting industries more expensive to run in order to push energy providers to use non-poluting polluting sources.
You can think of Carbon Allowance as a license to release CO2.
A single Carbon Allowance reflects one metric tons of CO2 released into the athmospehreatmosphere.
Game mechanic
The fossil based assets have Carbon Allowances listed as required inputs. The carbon allowances are purchased automatically when your assets runs. You do not need purchase them manually.
The price is determined for each tick by the game, and is the same for all assets in the same country. Each country can have differetn different Carbon Allowance prices.
Pricing
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The following will likely change as we are tunign tuning the game:
You can expect price of: $0 to $6 $18 per Carbon Allowance while below the country is below its CO2 target.
$6 $18 to $20 $50 when emissions are over the target to double target. The price can reach maximum of $40$100, if the emissions are even bigger.
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The following will likely change as we are tunign tuning the game:
The countries are starting with generous target of 8t per capita per year, as the country grows in popualtionpopulation, this target will be more strict. A country of 45,000,000 population or more will want to be carbon neutral (target of 0t per capita)
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There are technologies in real-world that allow plants to reduce their carbon footprint by capturing the extra CO2 before its released. Or even assets that pull CO2 from the athmosphere atmosphere - using power.
We plan to add these to the game, either in the form of upgrades to existing buildings, or standalone buildings.
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