Sønderborg, Denmark, is aiming for a high environmental standard: to be carbon-neutral by 2029.
Achieving that ambitious benchmark depends on generating power and heat from renewable sources and making its buildings more energy-efficient. The Project Zero goal is to reduce carbon emissions by 25 percent from 2007 levels by 2015, and to achieve carbon neutrality by 2029.
The average age of homes in the area is 65 years, well before Denmark’s first building energy efficiency standards appeared. About 65 percent of the people visited by a field energy adviser go on to contact a craftsman or architects to improve their home’s efficiency. Retrofit projects have created more than 300 local jobs.