Madison Gas and Electric (MGE) Data Access Guide
Madison Gas and Electric (MGE) is an investor-owned electric and natural gas utility serving Dane County and surrounding areas of south-central Wisconsin. Regulated by the Public Service Commission of Wisconsin (PSCW), MGE offers commercial and industrial customers AMI smart-meter data, a MyMeter analytics dashboard, and ENERGY STAR Portfolio Manager integration, though it does not support Green Button, EDI, or a public API.
How to Get Your Madison Gas and Electric (MGE) Data: All Access Methods
| Method | 1st Party | 3rd Party | Customer Types | Data Types | Latency | Format |
|---|---|---|---|---|---|---|
| My Account Portal | ✓ | ✓ | Residential, Commercial, Industrial | Bills, monthly usage, charges | Next billing cycle | Web, CSV/Excel, PDF |
| MyMeter Dashboard | ✓ | ✓ | Commercial, Industrial | Demand, on-peak demand, performance | Daily/monthly | Web, CSV/Excel |
| AMI 15-minute interval | ✓ | ✓ | All (by request) | 15-min interval, quality data | By request | CSV/Excel |
| ENERGY STAR Portfolio Manager | ✓ | ✓ | Commercial | Monthly consumption, demand | Monthly | ESPM web services |
| EDI / Green Button / API | — | — | None | Not available | N/A | Not supported |
Billing Data Access
MGE provides billing and usage data to residential and business customers through its My Account portal. Business customers get deeper analytics via the MyMeter dashboard. Third-party access requires a signed customer authorization (Form 3100) or a MyMeter third-party request.
What Data Is on Your Madison Gas and Electric (MGE) Bill
- Current and historical billing statements
- Energy usage by fuel type (electric and gas)
- Itemized charges and costs
- Monthly usage summaries with cost comparisons
- Demand and on-peak demand data (MyMeter, business)
- Payment history
How to Download Madison Gas and Electric (MGE) Bills (Business & Commercial)
- 01Log in to My Account and locate MyMeter in Available Programs
- 02Launch the MyMeter dashboard at mymeter.mge.com
- 03Review demand, on-peak demand, and performance metrics
- 04Use the Download/Export option to pull CSV or Excel data by date range
- 05Set performance targets and energy markers to track demand reduction
How to Download Madison Gas and Electric (MGE) Bills (Residential)
- 01Create or log in to My Account at mge.com/my-account
- 02Select Bill and Payment History to view statements and charges
- 03Open Energy Use Charts and Data for up to 5 years of usage
- 04Enable Paperless Billing for email delivery (optional)
Third-Party Access to Madison Gas and Electric (MGE) Billing Data
Customer Authorization (Form 3100)
- 01Customer downloads and completes Form 3100
- 02Customer names the third-party company and contact, sets effective and expiration dates (default 2 years)
- 03Customer signs and submits via mail, email (mge@mge.com), or fax
- 04Third party requests specific data from MGE at (608) 252-7000 once authorization is on file
MyMeter Whole-Building Request
- 01Go to mymeter.mge.com/WholeBuilding/RequestOwnerPermission
- 02Select Third-Party Requester and add property service addresses
- 03Build the whole-building definition with unit/meter counts
- 04Submit; MGE routes the request to the customer for approval
Want to understand the charges on your bill?
See the Madison Gas and Electric (MGE) Rate Schedules & Tariff Guide →Interval Data & Smart Meters
MGE is deploying Advanced Metering Infrastructure (AMI) across its territory. Smart meters record 15-minute interval consumption. Business customers view interval and demand data through MyMeter; granular interval files are available to third parties only by manual request under customer authorization.
How to Download Madison Gas and Electric (MGE) Interval Data via Green Button
- 01MGE does not support Green Button Download My Data or Connect My Data.
- 02For interval files, use MyMeter export (CSV/Excel) or submit a custom data request under Form 3100 authorization.
Interval data is essential for rate comparison and TOU analysis.
See which Madison Gas and Electric (MGE) rate schedule is best for your usage pattern →Third-Party API Access
MGE does not offer a public REST API or developer program for utility data. Third-party access is handled through MyMeter (with customer approval), ENERGY STAR Portfolio Manager integration, and manual data requests under Form 3100. Energy managers and consultants should plan for portal-based exports rather than programmatic feeds.
How to Register as a Madison Gas and Electric (MGE) API Vendor
- 01Have the customer authorize access via Form 3100 or MyMeter
- 02Request whole-building aggregation through the MyMeter request form for multi-tenant properties
- 03For recurring feeds, contact MGE Business at Business@mge.com to discuss custom delivery
EDI (Electronic Data Interchange)
How to Enroll in Madison Gas and Electric (MGE) EDI
- 01MGE does not publicly document EDI transaction support (814, 820, 867).
- 02For automated B2B data needs, contact MGE Business at Business@mge.com or (608) 252-7000 to discuss alternatives such as MyMeter exports or custom data files.
Sources
Rate Schedules & Tariff Analysis
MGE's large C&I rates are demand-driven time-of-use tariffs. Bills are dominated by per-kW-per-day demand charges (both a customer-maximum 15-minute demand component and a maximum monthly on-peak demand component) layered on a per-kWh base energy charge with summer/winter and on-peak period adders. Because demand uses a 15-minute window measured against the current or preceding 11 months for the customer-maximum component, brief spikes can elevate charges for up to a year.
Madison Gas and Electric (MGE) Rate Schedule List
| Schedule | Applicability |
|---|---|
| Cg-2 — C&I Lighting and Power TOU | Mandatory above 200 kW; up to 1,000 kW |
| Cg-6 — Large Annual High Load Factor | Above 1,000 kW |
| Cg-4 — C&I Time-of-Use | 20–200 kW |
| Cg-5 — Small C&I | 20 kW or less |
Madison Gas and Electric (MGE) Rate Features & TOU Details
- Mandatory Cg-2 above 200 kW demand
- Dual demand charges: customer-maximum 15-min and on-peak 15-min
- Seasonal pricing (summer June 1–Sept 30; winter otherwise)
- Three on-peak energy adder periods (10a–1p, 1p–6p, 6p–9p weekdays)
- Low Load Factor and Primary Voltage provisions can apply automatically when beneficial
For a deeper analysis including cost optimization strategies and historical rate trends:
Read the full Madison Gas and Electric (MGE) Rate Optimization Guide →Other Data Access Programs
ENERGY STAR Portfolio Manager Integration
MyMeter can push monthly billing data directly into ENERGY STAR Portfolio Manager, eliminating manual entry and supporting the City of Madison Building Energy Savings Program (BESP) benchmarking requirement.
- 01Create an ESPM property at portfoliomanager.energystar.gov
- 02Set up MyMeter access through My Account
- 03Connect MyMeter to ESPM and grant data-push permission
- 04Map meters to ESPM properties and verify monthly auto-upload
MGE Connect (Demand Response)
A smart-thermostat demand-response program providing event-based load reduction and participation incentives. Primarily residential but illustrative of MGE's DR capability.
- 01Verify smart-thermostat compatibility at mge.com/mgeconnect
- 02Submit enrollment request
- 03MGE confirms enrollment subject to availability
- 04Earn participation incentives
Limitations & Considerations
- ⚠No Green Button (Download My Data or Connect My Data / ESPI) support.
- ⚠No public REST API or developer program for utility data.
- ⚠No published EDI transaction support (814, 820, 867).
- ⚠Third-party and recurring interval-data access requires manual requests and customer authorization (Form 3100 or MyMeter).
- ⚠No utility-announced aggregator integrations; Nectar provides API access to this utility's billing data — see docs.nectarclimate.com.
Madison Gas and Electric (MGE) Data Access FAQ
How does a C&I customer get 15-minute interval data from MGE?▾
MGE's AMI smart meters record 15-minute interval data. The most practical access is the MyMeter business dashboard (mymeter.mge.com), which provides demand and on-peak demand data with CSV/Excel export. Raw interval files can be requested manually under a Form 3100 authorization; MGE does not offer Green Button or an API.
Can an energy consultant pull our data automatically?▾
Not via API or Green Button — neither is supported. A consultant gains access either through MyMeter (after the customer approves a third-party or whole-building request) or by the customer signing Form 3100. For recurring feeds, contact MGE Business at Business@mge.com to discuss custom delivery.
Which rate schedule applies to a large commercial or industrial site?▾
Schedule Cg-2 (Commercial and Industrial Lighting and Power Time-of-Use) is mandatory for sites with maximum monthly 15-minute demand above 200 kW (or above 200 kW in four of 12 months). Sites over 1,000 kW with high load factor may use Cg-6. Smaller sites use Cg-4 (20–200 kW) or Cg-5 (20 kW or less).
How are demand charges billed on Cg-2?▾
Cg-2 bills a customer maximum 15-minute demand charge per kW per day for distribution plus a maximum monthly on-peak 15-minute demand charge per kW per day for electricity service, on top of a daily grid connection/customer service charge and per-kWh energy charges with time-of-use adders. Demand is the greatest 15-minute usage rate, so flattening peaks directly lowers the bill.
Does MGE support ENERGY STAR Portfolio Manager benchmarking?▾
Yes. MyMeter can push monthly data into ENERGY STAR Portfolio Manager automatically, which supports the City of Madison Building Energy Savings Program (BESP). Whole-building aggregation is available for multi-tenant properties with proper authorization.
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