In addition, DID YOU KNOW?... 
The federal government currently offers homeowners a
30% credit for the installation of domestic solar systems both on retrofits and on new construction with no cap on commercial installations?
That the State of Maryland offers an additional
20% state rebate, up to $1500, to homeowners installing solar systems, with
a $25,000 cap on commercial installations?
That Delaware offers up to a
50% grant, up to $3000 for residential hot water and up to $5000 for integrated radiant heating, and up to $10,000 for comercial applications?