Residential and commercial Piedmont Natural Gas customers in North Carolina now can reduce the impact of their own natural gas usage by participating in GreenEdge – a voluntary program allowing customers to purchase green "blocks" from Piedmont and then claim the associated environmental benefits.
Each $3 block represents the environmental attributes of renewable natural gas and carbon offsets and is equivalent to 12.5 therms of natural gas usage. Just one block is equal to 25% of the average household's monthly natural gas usage, meaning customers who purchase four blocks could claim associated environmental benefits for approximately 100% of their monthly household natural gas usage.