PV POWER MAP The PV Power Map is a report of national solar
resource availability as illustrated by the monthly energy
output of a nominal 1-kilowatt (kW) photovoltaic (PV) system by
location. Comparing monthly maps makes it possible to see how
irradiance and associated PV system power output vary over time
from region to region, often with unexpected results. For
example, compare January and February solar resource
availability on the eastern seaboard with the Gulf Coast. During
this time, the total power output of a 1-kW system in New York
City and New Orleans was virtually identical, at approximately
195 kilowatt-hours (90 + 105 kWh) and 200 kWh (115 + 85 kWh)
respectively. When viewed over time, solar resource availability
in northern states often exceeds expectations. Looking at the
February map in the Maine region, the northern Rockies and the
northern Great Plains, a limitation common to all satellite-
derived solar irradiance data sources is evident. Persistent
snow cover in these regions was in some c