Important Notice: Utility Bill Pay Application Maintenance

A planned maintenance period is scheduled for the City of Longmont Utility Bill Pay application website on Saturday January 19th, 2019 from 9am to 1pm. This online application will be unavailable entirely or may experience intermittent periods of downtime during this time. Please save your work and avoid using the system during this time frame. We apologize for any inconvenience.



Residential billing

As with all customers who have their own electric generation equipment, residential Solar/PV customers are billed under LPC’s RGEN (Residential Self Generation) rate. This rate accounts for the energy LPC delivers to the customer and energy that the customer’s system delivers to LPC. This is recorded on an ongoing basis via our net metering process. Learn more about LPC's residential rates.

Commercial billing

Commercial Solar/PV customers are billed under LPC’s CEGE (Commercial Energy Self Generation) rate for smaller users who consume under 50kW of maximum demand & CDGE (Commercial Demand Self Generation) rate for larger users who consume over 50kW. These rates account for energy delivered to the customer and energy that the customer’s system delivers to LPC. This is recorded on an ongoing basis via our net metering process. Learn more about LPC's commercial rates.

Metering differences

Customers without generation systems only consume electricity and their meter is used to record the energy being delivered to them. Because self-generation system customers have the ability to both produce and consume energy, they require a meter that can record energy flow in both directions. The customer is billed for the net amount of energy they received in a billing period.

Generation reimbursement

If the customer delivers more energy to LPC than they receive from LPC in a given billing cycle, they will receive a credit that is rolled over to the following month. At the end of each year, LPC issues a bill credit to the customer based on an annual reconciliation of any remaining credit. Net excess energy provided by the customer is valued at the retail electric rate.

Monthly customer charge

For self-generation customers, most of the fixed costs for the utility’s electric distribution system have been placed into the monthly customer charge and removed from the kWh charge. This results in a self-generation customer’s fixed monthly customer charge being more with a corresponding decrease in their kWh charge.

Unlike a customer who only consumes electricity, a self-generating customer uses the electrical distribution system in two ways: drawing power from the grid and putting power back onto the grid.  If charges designed to collect for the utilities fixed costs were left in the kWh charge for a self-generating customer, and that customer generated as much or more electricity over the year than they consumed, it would result in under collecting for their share of the electric distribution system costs.  Since LPC is a not for profit customer owned utility, this would result in other customers having to subsidize this usage.  The self-generation rate structure is designed to help eliminate this unintended cross-subsidization.    

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