Wisconsin Power & Light (Alliant Energy) Data Access Guide
Wisconsin Power & Light, an Alliant Energy company, serves about 500,000 electric customers (plus gas) across southern and central Wisconsin under PSCW regulation. AMI smart meters provide near-real-time hourly usage viewable in the My Account portal with Excel export and up to 36 months of billing history; there is no Green Button, public API, or EDI, so C&I data access relies on the portal, Energy Analytics, and business guest-user access.
How to Get Your Wisconsin Power & Light (Alliant Energy) Data: All Access Methods
| Method | 1st Party | 3rd Party | Customer Types | Data Types | Latency | Format |
|---|---|---|---|---|---|---|
| My Account Portal | ✓ | ✓ | All classes | Billing + hourly usage | Near real-time / monthly | PDF, Excel, web |
| Energy Analytics (business) | ✓ | ✓ | Business C&I | Facility usage/demand | Near real-time | Web, Excel |
| Business Guest User | — | ✓ | Business C&I | Usage/analytics | Near real-time | Web, Excel |
| Green Button | — | — | None | N/A | N/A | N/A |
| EDI / Public API | — | — | None | N/A | N/A | N/A |
Billing Data Access
Billing data is available through Alliant Energy's unified My Account portal for residential and business customers. Bills download as PDFs and monthly usage can be exported to Excel. History depth varies by account type: up to 24 months residential, 13 months business usage, and 36 months of bills with Paperless Billing.
What Data Is on Your Wisconsin Power & Light (Alliant Energy) Bill
- Service charge, energy/fuel and demand charges (itemized)
- Monthly kWh usage and meter readings
- Billing period dates and degree-day information
- Payment history (24-36 months)
How to Download Wisconsin Power & Light (Alliant Energy) Bills (Business & Commercial)
- 01Enroll in My Account for Business at https://www.alliantenergy.com/customer-service/my-account-business
- 02Provide account number and federal Tax ID (last four digits)
- 03Open the Usage tab and Energy Analytics for facility-level analysis
- 04Export monthly/daily usage summaries to Excel (13 months)
- 05Contact the Business Resource Center (1-866-255-4268) for portfolio data needs
How to Download Wisconsin Power & Light (Alliant Energy) Bills (Residential)
- 01Go to https://www.alliantenergy.com/customer-service/my-account and log in or create an account
- 02Provide the Alliant Energy account number (business: last four digits of federal Tax ID)
- 03Open Billing & Payment to view current bill and history
- 04Use the Usage tab > Usage Overview > Export to Excel for monthly kWh
- 05Enable Paperless Billing to retain 36 months of bills
Third-Party Access to Wisconsin Power & Light (Alliant Energy) Billing Data
Business guest-user access
- 01Account holder contacts the Business Resource Center to add a third party
- 02Provide the third party's name, company, email and data-access scope
- 03Alliant creates guest credentials; guest sets a permanent password
- 04Guest logs into My Account to view Energy Analytics and export usage to Excel
Customer-authorized data delivery
- 01Customer submits written authorization naming the third party and scope (per PSC 113)
- 02Provide account number and authorization to the Business Resource Center
- 03Alliant establishes data delivery (emailed PDFs, portal guest access, or electronic bill data)
Want to understand the charges on your bill?
See the Wisconsin Power & Light (Alliant Energy) Rate Schedules & Tariff Guide →Interval Data & Smart Meters
WPL has deployed two-way wireless AMI smart meters across its territory (ongoing since 2009). Customers can view near-real-time hourly electric usage in the My Account portal and export monthly summaries to Excel. There is no Green Button or API feed; the most granular customer-facing data is hourly usage with up to 13 months of history.
How to Download Wisconsin Power & Light (Alliant Energy) Interval Data via Green Button
- 01Green Button Download My Data is not available
- 02Green Button Connect My Data is not available
- 03Use the My Account Usage tab and Export to Excel for hourly/monthly data instead
Interval data is essential for rate comparison and TOU analysis.
See which Wisconsin Power & Light (Alliant Energy) rate schedule is best for your usage pattern →Third-Party API Access
WPL/Alliant does not operate a Share My Data program or public developer API. Direct third-party access for business accounts is via guest-user credentials in My Account (manual Excel export) or customer-authorized data delivery through the Business Resource Center. Nectar provides API access to this utility's billing and interval data with customer authorization — see docs.nectarclimate.com.
How to Register as a Wisconsin Power & Light (Alliant Energy) API Vendor
- 01Obtain customer authorization
- 02Have the account holder add the third party as a guest user via the BRC
- 03Log into My Account and export usage to Excel for analysis
EDI (Electronic Data Interchange)
How to Enroll in Wisconsin Power & Light (Alliant Energy) EDI
- 01No EDI program is published for WPL/Alliant Energy
- 02Call WPL at 1-800-862-6222 to inquire about electronic bill data options
- 03Escalate specific transaction needs (810/820) to the Business Resource Center and Regulatory Affairs
Rate Schedules & Tariff Analysis
WPL C&I electric rates move from energy-only General Service (Gs-1) for small loads, to demand-metered General Service Demand (Gd-1) and Commercial TOU (Cg-2 TOD) for mid-size customers, to Industrial Power (Cp-1) for loads above 200 kW. Demand charges rise with schedule tier (on-peak demand $10.80/kW on Gd-1 to $20.54/kW on Cp-1) while per-kWh energy charges fall, so managing peak demand and shifting load off-peak are the biggest cost levers. All figures are effective 01/01/2026 (PSCW docket 6680-UR-125).
Wisconsin Power & Light (Alliant Energy) Rate Schedule List
| Schedule | Applicability |
|---|---|
| Gs-1 - General Service | Small commercial; $0.7808/day + $0.13590/kWh; no demand charge. |
| Gd-1 - General Service Demand | Mid-size commercial; TOU energy + On-peak Demand $10.80/kW, Customer Demand $2.75/kW. |
| Cg-2 TOD - Commercial TOU | Commercial TOU demand; On-peak Demand $16.80/kW, Customer Demand $3.10/kW. |
| Cp-1 - Industrial Power | >200 kW for 8+ months; On-peak Demand $20.54/kW, Customer Demand $3.17/kW. |
Wisconsin Power & Light (Alliant Energy) Rate Features & TOU Details
- Daily customer charge + per-kWh energy + per-kW demand structure on demand schedules
- Time-of-use energy pricing (High/Regular/Low) on Gd-1, Cg-2 TOD and Cp-1
- Energy Limiter Provision caps effective on-peak demand cost per kWh
- 2.5% primary-voltage discounts plus $0.36/kW customer-demand credit for primary service
- Cp-1 requires >200 kW measured demand for 8 of 12 months
- Separate fuel/gas-cost recovery outside base rates
For a deeper analysis including cost optimization strategies and historical rate trends:
Read the full Wisconsin Power & Light (Alliant Energy) Rate Optimization Guide →Other Data Access Programs
Smart Hours Demand Response
Voluntary demand response program (implemented with Uplight) enabling smart thermostat, water heater and EV charger integration for residential and business customers, with enrollment incentives.
- 01Enroll at the Smart Hours Wisconsin page and accept Uplight terms
- 02Connect a compatible device (thermostat, EV charger, water heater)
- 03Authorize Uplight and WPL to monitor consumption and run control events
- 04Receive notifications and seasonal rewards
Energy Analytics (Business Tool)
Self-service analytics for business customers providing facility energy analysis, demand identification, weather-normalized comparisons and customizable reporting at no extra charge.
- 01Enroll in My Account for Business
- 02Set up the Energy Analytics profile with facility details
- 03View dashboards and export reports to Excel
Limitations & Considerations
- ⚠No Green Button (Download My Data or Connect My Data) and no ESPI/OAuth support
- ⚠No public developer API; Nectar provides API access to this utility's billing and interval data — see docs.nectarclimate.com
- ⚠No EDI (810/820) program offered by WPL
- ⚠Interval data is hourly only (no 15-minute) and limited to portal view + Excel export, not automated feeds
- ⚠Third-party access is limited to business guest users and is manual (no account-to-account data relationships)
- ⚠Gas usage granularity is monthly only
Wisconsin Power & Light (Alliant Energy) Data Access FAQ
Can a C&I customer get hourly interval data from Wisconsin Power & Light?▾
Yes, to a point. AMI smart meters let business customers view near-real-time hourly electric usage in the My Account portal and Energy Analytics, with Excel export of monthly/daily summaries (up to 13 months). However, there is no Green Button or API feed and no sub-hourly (15-minute) data exposed, so automated/programmatic interval retrieval is not available.
Is there an API or Green Button for automated data?▾
No. WPL/Alliant does not offer Green Button (DMD or CMD), a public API, or aggregator partnerships. Third parties use business guest-user access to view Energy Analytics and manually export to Excel, or receive customer-authorized data delivery via the Business Resource Center.
How does a third-party consultant access a business customer's data?▾
The account holder requests a guest user through the Business Resource Center, providing the consultant's name, company, email and data scope. Alliant issues guest credentials; the guest can then view Energy Analytics and export usage to Excel, but cannot change account, billing or payment settings. Access is revocable anytime.
Which rate schedule fits a commercial or industrial site?▾
Small commercial loads typically take General Service (Gs-1) or General Service Demand (Gd-1). Larger demand customers take Commercial Service Time-of-Use (Cg-2 TOD), and customers above 200 kW for 8+ months take Industrial Power (Cp-1). The Business Resource Center offers free rate analysis to confirm the lowest-cost option.
How much billing history can we pull for a facility?▾
Business usage history is up to 13 months and bills are retained up to 36 months with Paperless Billing. Enable Paperless Billing for the longest retention, and export monthly usage to Excel for external benchmarking.
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