Use ECOTECT and creation of the middle energy year

When you perform solar and thermal calculations in Ecotect, it does not do these for any specific year, but rather a standard ''average'' energy year. This is true of nearly all thermal and energy analysis tools. Even the weather files used for solar and energy analysis are usually averaged to better represent long-term conditions. This article explains the basic assumptions behind the ''average'' energy year and why this approach is more appropriate than using any particular year.