Two different climates in one year
At this latitude summer days are extraordinarily long and winter days extraordinarily short. That is a larger seasonal swing than any other populated part of the country experiences.
The practical consequence is that most of a Fairbanks system annual output arrives in a concentrated stretch from spring to late summer.
Around the winter solstice, output is close to nothing regardless of how good the equipment is. Low sun angles, few daylight hours and snow cover compound each other.
So an annual production total tells you very little about what the system does in any given month, and a savings figure derived from it tells you less.
Ask for the year month by month
Ask for the production estimate month by month, in kilowatt hours, alongside your own consumption for the same months.
That view shows the mismatch directly: heavy generation in months when you are using least for lighting and heat, and almost none in the months you are using most.
Ask how the model handles snow, since an array under snow produces nothing until it clears and the clearing depends on tilt and orientation.
Ask about tilt specifically. In a high-latitude installation a steep tilt captures low sun angles better and sheds snow more readily, and it is a genuinely different optimum from a southern roof.
How that interacts with the credit arrangement
Golden Valley Electric Association adjusts its net metering avoided cost rate quarterly, on March 1, June 1, September 1 and December 1, with a retail rate published at $0.13323 per kWh effective June 1, 2026.
A quarterly adjustment interacts with an extremely seasonal generation profile in a way an annual rate does not. Most of your export happens in the quarters with long days.
So ask which quarterly rates the projection applied and against which months of production, rather than accepting a single annual export figure.
A model using one blended export rate across a year in which nearly all the export happens in two quarters is not modelling this arrangement.
Costing it out when your utility sets the terms
The 30 percent federal Residential Clean Energy Credit under Section 25D expired for property placed in service after December 31, 2025, so a cash or loan purchase in Fairbanks receives no federal tax credit, and Alaska has no state solar credit.
Section 48E survives at 30 percent for third-party owners under leases and power purchase agreements, so ask what a provider claims and what reaches you in the rate.
What exists is the retail value of self-consumed generation and whatever your utility credits for exports, adjusted quarterly in the Golden Valley case.
Ask for production month by month, quarterly export rates applied to the correct months, and the tilt decision explained.