Hurricane Beryl is affecting PSN phone-in payments causing longer wait times. SPU reminds of online payments via MyAccount 24/7.

Electric Rates

Bill Comparison

Interested in viewing how your electric bill compares to other residential utilities?  Visit the Public Service Commission of Wisconsin to enter your electric residential bill comparison report criteria to calculate your results. 

Rate Tariffs

The Public Service Commission of Wisconsin (PSCW) provides information concerning Sun Prairie Utilities rate tariffs. To view a PDF version of the rate tariff, please click here. The rate tariff is also kept on file at the PSCW.

How to Read Your Bill

See our easy-to-read bill samples for all of our different customer rate classes.

Nights & Weekends Smart Plan

Residential customers have the option to apply for time of day rate option (RG2). This structure defines a peak time period for on-peak at which all consumption used is charged a higher cost than regular Residential (RG1). Likewise, all consumption not used on-peak is considered off-peak and all off-peak consumption is charged a lower cost than RG1. The on-peak period is defined as Monday-Friday between 8am-8pm, excluding Saturday, Sunday, and holidays.

The current regular RG1 rate is $.1075 per kwh. The current RG2 rates are $.1450 per kwh on-peak and $.0850 per kwh off-peak. At these rates, if your household can move 62% ot total usage (or more) to the off-peak period then RG2 would be a more beneficial rate. To see if switching to the Nights & Weekends Smart Plan makes sense for your household, check out the rate comparison tool on MyAccount.

The Nights & Weekends Smart Plan requires a 12-month commitment, so it is imperative that a household can move at least 68% of total monthly consumption to the off-peak period. If not, they would be paying more premium on-peak costs and would be paying in total more than on the regular RG1 rate. If you are ready to consider making the switch complete our simple sign up form.

Power Cost Adjustment Clause (PCAC)

This is a variable component of our rates as approved by the PSCW. The Power Cost Adjustment Clause (PCAC) is a monthly pricing adjustment comparing actual purchased power costs to allocated costs as approved by the PSC. If actual costs are greater than the allocated, the result is an additional per-kilowatt hour charge on your bill. If actual costs are less than allocated, the result is a per-kilowatt hour credit on your bill. The PCAC assures you are only paying the actual costs associated with your actual consumption.

Summer Energy Rates

Energy costs more in the summer, in part because of increased air conditioning use, overall customer demand for electricity is at its highest in the summer months which can mean we pay more to purchase the energy resources we deliver to your home. This means your bill is likely to increase during this time of year. You also may notice the Power Cost Adjustment Clause (PCAC) on your bill. Since the cost to generate or buy electricity fluctuates throughout the year, adjustments are made to reflect the true cost of power. Each month, base rates are collected representing the utility’s projected cost. The PCAC accommodates for these monthly fluctuations in power costs. And when it comes to the hot, summer months, weather and the demand for electricity plays a pivotal role.

Customer Bill of Rights

Sun Prairie Utilities is regulated by the Public Service Commission of Wisconsin. You can read your rights as a municipal utility customer by downloading a copy of the PSCW Customer Bill of Rights.

Energy Assistance Program

For some customers, including seniors on fixed incomes, energy expenses can be a financial burden. Our local Energy Assistance Program is designed to help income-qualifying households cover their energy costs and reduce the financial burden they face.