Mesa Commercial Solar: Why the 50 kW Threshold Matters
For a commercial property served by the City of Mesa electric utility, crossing 50 kW can change the solar project’s tariff and export economics. Confirm your serving utility before using these rules: a Mesa street address does not automatically mean City of Mesa electric service.
What changes above 50 kW?
Mesa’s FY2026–27 solar program states that commercial PV systems over 50 kW enter its Large Commercial Solar Program rather than net metering. Its published buyback for these systems is $0.02 per kWh received by Mesa from the customer.
The city also states that commercial PV systems over 50 kW supplying more than 50% of the customer’s annual energy requirements are subject to the Self Generation Standby Service rate, E3.8. Confirm how the utility measures capacity, annual energy requirements and tariff eligibility for your project.
Size around your facility and tariff
More panels do not automatically produce the best financial result. Review daytime consumption, exported energy, seasonal operations, demand charges and any standby charges. Battery storage may change when energy is used, but it does not automatically remove tariff obligations or utility approval requirements.
Prepare before applying
Confirm the utility and actual commercial tariff from your bill.
Gather 12 months of bills and interval usage where available.
Ask Mesa to confirm the proposed system’s applicable program and charges in writing.
Have the project team prepare electrical plans, equipment specifications, contracts, ownership evidence and required insurance documentation.
Include permitting, inspections and permission to operate in the schedule.
Does this apply to SRP customers in Mesa?
No. These are City of Mesa electric program provisions. Properties served by SRP must use SRP’s applicable requirements and tariffs.
Start with the economics before choosing capacity
Peak Ready Energy helps facilities organize utility, load and project information for a preliminary commercial energy review. Request an assessment or explore commercial solar planning.
Source: City of Mesa Solar Program, FY2026–27. Reviewed October 12, 2026. Program terms can change; confirm current provisions before committing to a project.
