Village Green’s Carbon Offset Approach is Sparking Debate
October 20th, 2008Village Green’s new carbon offset launched this week, and with it many conversations are being sparked about the benefit of buying and removing carbon permits from the RGGI market. This is great news, as we think a healthy debate about the effectiveness of voluntary carbon offsets is exactly what is needed.
The main issue that has been coming up in regards to purchasing RGGI permits as carbon offsets, is the fact that the RGGI market is seemingly oversupplied with permits at the initial level. We have seen estimates that 2006 emission levels in the region were around 164 million metric tons of C02, whereas permits in RGGI represent 188 million metric tons of CO2 for 2009. The reason for this potential over-allocation is the slower than expected growth in electricity generation.
So it would appear that purchasing permits out of an oversupplied market would lower the cap, but not actually reduce carbon emissions. However, there is a crucial rule that ensures a purchase of a permit from RGGI forces a reduction in carbon dioxide emissions. The rule is called “banking”, and it means that if there are excess permits available one year, power plants can save or “bank” these permits and use them in a later year.
For easy numbers, let’s say this year emissions are 9 tons and the cap is at 10. Emitters will save that one extra permit for later years. Then when the cap drops to say 8, they can use that extra permit to emit 9 tons. So in these two years, 18 total tons would be emitted.
If instead, someone had purchased that extra ton in the first year, it couldn’t be used in a later year. So emissions this year would be 9 and next year would be 8, for a total of 17 tons.
Because the market is currently oversupplied, it means that reductions can actually be purchased quite cheaply right now. Removing one permit from the system will reduce one ton of emissions, whether the prices are at $1 or $100.
It is exactly correct that this approach would not work if the banking rule wasn’t in place, but because RGGI permits can be banked indefinitely, our methodology is still sound.
For more information, and for answers on all the questions that you may have regarding buying RGGI permits as carbon offsets, please visit our carbon offsetting FAQ page and don’t hesitate to give us a call if you want to chat more about this.
Thanks – Jordan Parrillo, Policy Director at Village Green Energy





