Wisconsin Public Service (WPS) Rate Selection Guide
Wisconsin Public Service (WPS), a WEC Energy Group subsidiary, delivers electric and natural gas service to roughly 468,000 electric and 326,000 gas customers across northeast and central Wisconsin and Upper Michigan. It is a regulated investor-owned utility overseen by the Public Service Commission of Wisconsin (PSCW), with published commercial and industrial rate schedules and a MyMeter interval-data portal.
Wisconsin Public Service (WPS) Rate Schedule Comparison
| Schedule | Type | Rate | Best For |
|---|---|---|---|
| Small C&I Electric (under 12,500 kWh) | Commercial, energy-only | $0.13196/kWh + daily customer charge $0.9084-$2.9070 | Small businesses under 100 kW / 25,000 kWh |
| Small C&I Electric (over 12,500 kWh) | Commercial, energy-only | $0.11591/kWh + daily customer charge $2.0712-$6.6279 | Higher-use small businesses still under demand thresholds |
| General / Large Power Electric | Industrial, demand-billed | Demand ($/kW) + energy ($/kWh) + customer charge (see tariff) | Customers over 100 kW / 25,000 kWh |
| C&I Natural Gas | Gas | Facility charge + per-therm + commodity (see tariff) | Commercial/industrial gas loads; transportation for large users |
Market Overview
WPS is a regulated, vertically integrated electric and gas utility under the PSCW. Electric rates are bundled and there is no retail electric supplier choice in Wisconsin. Large gas customers can take transportation service and procure their own commodity through approved marketers/brokers while WPS handles delivery. WPS filed a 2026 rate request with the PSCW.
Need to pull your actual usage data to compare rates? See the Wisconsin Public Service (WPS) Data Access Guide →
Current Rate Schedules
WPS electric and gas rates are set by the PSCW and published in the Wisconsin tariff books. For small commercial and industrial electric customers (under 100 kW or 25,000 kWh/month) WPS publishes energy-only rates with a daily customer charge plus a per-kWh energy charge; verified current values are shown below. Customers exceeding those thresholds move to demand-billed general/large power schedules whose demand and energy charges are detailed in the tariff (structure described qualitatively here - verify exact demand charges in the tariff book). Large gas customers can take transportation service. WPS filed a 2026 rate request with the PSCW.
Effective: January 1, 2026 · Full Tariff Book →
| Schedule | Type | Applicability | Structure | Rate |
|---|---|---|---|---|
| Small C&I Electric - Energy Only (under 12,500 kWh/mo) | commercial | Small commercial and industrial customers under 100 kW or 25,000 kWh/month, using under 12,500 kWh in the month. | Verified: Single-phase daily customer charge $0.9084 (year-round) / $1.8168 (seasonal); three-phase $1.4535 / $2.9070. Energy charge $0.13196 per kWh. Plus Wisconsin Low-Income Assistance Fee. | — |
| Small C&I Electric - Energy Only (over 12,500 kWh/mo) | commercial | Small commercial and industrial customers under 100 kW or 25,000 kWh/month, using over 12,500 kWh in the month. | Verified: Single-phase daily customer charge $2.0712 (year-round) / $4.1425 (seasonal); three-phase $3.3140 / $6.6279. Energy charge $0.11591 per kWh. Plus Wisconsin Low-Income Assistance Fee. | — |
| General / Large Power Electric (demand-billed) | industrial | Commercial and industrial customers exceeding 100 kW or 25,000 kWh/month for three consecutive months, billed on demand-based general/large power schedules. | Demand charge ($/kW) plus energy charge ($/kWh) plus customer charge; some schedules offer time-of-use options (e.g., Cg3-OTOU). Exact demand and energy rates published in the PSCW-filed Wisconsin electric tariff. | — |
| Commercial / Industrial Natural Gas | commercial | Commercial and industrial gas customers; large customers may elect transportation service and procure their own gas through an approved marketer. | Fixed monthly facility charge plus per-therm distribution charge plus gas commodity cost; transportation customers pay delivery-only. Exact per-therm rates in the Wisconsin natural gas tariff. | — |
| Time-of-Use Option (Cg3-OTOU) | commercial | Eligible commercial customers electing an optional time-of-use rate. | On-peak/off-peak energy pricing per the tariff; encourages shifting load to off-peak periods. Verify time windows and rates in the Wisconsin electric tariff. | — |
Rate Recommendations by Use Case
Industrial plant with high, steady demand
Large manufacturers should focus on peak-demand management under the general/large power schedule.
Demand charges ($/kW) drive a large share of the bill at this size, so shaving peak kW yields the biggest savings.
- Use MyMeter/EIS to identify peak intervals
- Stagger heavy equipment startup
- Verify exact demand charges in the Wisconsin electric tariff
Small business under 100 kW
Small commercial customers are billed energy-only with verified per-kWh rates.
At $0.13196/kWh under 12,500 kWh (or $0.11591/kWh above), plus a modest daily customer charge, the bill scales with usage rather than demand.
- Confirm single vs three-phase service
- Watch the 12,500 kWh breakpoint
- Reduce kWh with efficiency upgrades
Commercial customer with flexible load
Businesses able to shift load should evaluate the optional time-of-use rate.
Off-peak pricing can lower the energy component for customers who can move usage out of peak windows.
- Map your load shape with MyMeter
- Compare TOU vs standard before switching
- Confirm peak windows in the tariff
Large gas-intensive operation
High-volume gas users should evaluate transportation service with an approved marketer.
Buying your own gas commodity and paying WPS delivery-only can beat the bundled commodity cost for large, steady loads.
- Execute a Marketer Verification Agreement before Nov 1
- Submit intent to switch Jan 1-Mar 1
- Use EIS for hourly/daily gas data
Historical Rate Trends
WPS rates are reset through periodic PSCW rate cases. WPS filed a rate request with the PSCW in 2026, which proposed sharing more than $132 million in federal tax-credit savings with customers; the Citizens Utility Board has tracked WPS rate changes for 2025 and 2026.
April 5, 2026
WPS filed a rate request with the PSCW seeking to share more than $132 million in federal tax-credit savings with customers, alongside proposed cost recovery.
pending PSCW decisionOverall trend: Recent rate cases have produced increases tied to generation and grid investment, partially offset by tax-credit savings in the 2026 filing.
Next expected change: Subject to the PSCW's ruling on the 2026 rate request; new rates typically take effect at the start of the following rate year.
Cost Optimization Strategies
WPS C&I customers can cut costs by managing peak demand, selecting the optimal rate tier, considering time-of-use, and using MyMeter/EIS interval data to target reductions.
Manage peak demand
For: Customers over 100 kW / 25,000 kWh
On demand-billed general/large power schedules, reducing peak kW (load staggering, peak shaving) lowers the demand charge that drives much of the bill.
Confirm the right rate tier
For: All C&I electric
Verify whether energy-only or demand-billed service is cheaper given your monthly kW and kWh, and whether you cross the 100 kW / 25,000 kWh threshold.
Evaluate time-of-use (Cg3-OTOU)
For: Eligible commercial customers
If load can shift to off-peak hours, an optional time-of-use rate may lower the energy component.
Use MyMeter / EIS analytics
For: All C&I
Track 15/30-minute or hourly interval data, set threshold alerts, and correlate with weather to find and fix waste.
Consider gas transportation
For: Large C&I gas customers
Large gas users can procure their own commodity through an approved marketer and pay WPS delivery-only, potentially beating bundled commodity cost.
To implement these strategies, you need your 15-minute interval data. Learn how to download Wisconsin Public Service (WPS) interval data →
Frequently Asked Questions
Does WPS offer an API or Green Button for third-party data access?▾
No. WPS does not provide a public developer API, REST/SOAP web services, or Green Button (Download or Connect My Data). It is not listed in the Green Button Alliance directory. The only programmatic pathway is the Energy Information System (EIS) for eligible business customers, which can grant an authorized third party a separate login with written customer consent.
How does a consultant get authorized to receive a customer's WPS usage data?▾
The customer must complete a Third-Party Verification Agreement (and a usage-information release form for detailed data), specifying the authorized party and the data scope, then submit it by mail or to customerservice@wisconsinpublicservice.com. WPS updates records in about 5-10 business days. WPS will not send confidential usage data to a third party without this authorization on file.
What interval granularity can a business customer get?▾
Through MyMeter, electric interval data is available at 15-minute or 30-minute granularity where the advanced meter supports it, otherwise hourly/daily. Eligible gas transportation and interruptible customers can access hourly and daily consumption through the Energy Information System (EIS).
Which electric rate applies to a small business?▾
Small commercial and industrial customers using under 100 kW or 25,000 kWh per month are typically billed energy-only, with a daily customer charge plus a per-kWh energy charge. Larger customers that exceed those thresholds move to demand-billed general/large power schedules. Confirm your exact rate in the WPS Wisconsin electric tariff.
Can a WPS C&I customer shop for a competitive electric supplier?▾
No. Wisconsin does not have retail electric choice, so WPS electric rates are bundled and regulated by the PSCW. For natural gas, however, large customers can take transportation service and buy their own gas commodity through an approved marketer while WPS delivers it.
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