It matters not if we talk about strawberries, BMW's, organic, free range or 'buying green,' the buyer always wants it to cost less. So what is new?
Your attachment to the work inflated may indicate a disconnect regarding your understanding of the real cost of building green that leads to the benefits of living in a green house.
How do you get around it? Don't buy it. Keep your GREEN in your pocket.
While you are holding your $$$$, engage your local politician to release citizens from their bondage to the utility companies. As it stands. the State of Florida, by practice, deed and code, demonstrate their belief that the greatest benefit to the state regarding GREEN is to have DUKE Energy to greenify their infrastructure which those elected believe is more beneficial than single family homes. SO....you should vote for those who have a different enlightenment.
Then, the real action you should take is to make a purchase offer that reflects what the house is worth to you. THEN the research can be completed to discover where the disconnect exists.