Hello,
I live in Arizona and use Salt River Project for electricity. I am exploring my PV options and running simulations on various configurations.
I imported rate schedules from the OpenEI database for E-13 and E-23 Rate Plans via SAM's Electricity Rates page. These plans have seasonably adjusted rates. The data I see in SAM appears to accurately represent these plans except for an important detail. According to SRP's rate schedules:
Summer is defined as the May, June, September and October billing cycles. Summer
Peak is defined as the July and August billing cycles. Winter is defined as the November
through April billing cycles.
I spoke with an SRP representative for clarification and learned that the
rates are based on the last day of each billing cycle. For example, my closing date is the 5th of each month. My July bill will be based on energy use from June 6 through July 5. SAM will calculate billing using Summer rates for 6-30 June plus Summer Peak rates for 1-5 July. SRP will bill me using Summer Peak rates for the entire period.
Is there any way to adjust calculations to be based on billing month rather that actual calendar month?
I'm a retired software engineer with over 5 decades of programming experience. I am open to suggestions on how I might do this myself.
Thanks