Electricity Rates for Renewables

[enerGwizz]

The VistaPro "Tariffs" dialogue is currently set up for "Electricity" to include building electricity consumed, and any renewables ("grid displaced electricity") are reported separately.

This is problematic because electricity rate tariffs are applied to the NET of electricity consumption minus generation for each time step.

Please improve the treatment of renewables so that advanced electricity rate tariffs can be applied to the net electricity consumption.