Virginia has very limited resources for solar energy programs at this time.
There is an available grant program available for manufacturers of solar photovoltaic panels in Virginia, and TVA (Tennessee Valley Authority) offers a production incentive of $1000 plus $.12 kWh. Property tax exemption is a possibility, depending on the county or locality. Arlington County offers a Green Building Incentive program for achieving LEED certification.
Many additional programs are available from the federal government.
For additional information visit the DSIRE:Database of State Incentives for Renewables & Efficiency.