Global carbon dioxide emissions from energy generation are still increasing. They need to be decreasing. Rooftop solar can help, yet many buildings are not installing rooftop solar because they are rented premises. Tenants don’t plan to stay long enough to see a return on green energy investments such as wind and solar. Unbound Energy is helping with this problem. We provide free solar installations and sell the energy generated to the tenant. Unbound aims to accelerate the adoption of rooftop solar with short term energy contracts that align with the length of a tenants lease.