East Central Energy Rate Selection Guide
East Central Energy (ECE) is a member-owned electric cooperative serving ~67,600 homes, farms, and businesses across east central Minnesota and northwestern Wisconsin. ECE runs the NISC SmartHub portal with confirmed Green Button Download My Data (15-minute interval XML), making first-party data access strong, though no public API or formal aggregator program is documented.
East Central Energy Rate Schedule Comparison
| Schedule | Type | Rate | Best For |
|---|---|---|---|
| Small General Service (SGS) | Commercial | Cost-of-basic-service + per-kWh energy (see 2026 SGS PDF) | Small businesses with demand under 50 kW |
| General Service (GS) | Commercial | Cost-of-basic-service + per-kW demand + per-kWh energy (see 2026 GS PDF) | Larger facilities with demand 50 kW or more |
| C&I Interruptible Service | Industrial | Discounted GS-style rate for curtailable load (see C&I PDF) | Plants with controllable load willing to curtail on call |
Market Overview
ECE is a member-owned distribution cooperative governed by a member-elected board. It buys wholesale power from Great River Energy and provides bundled retail service in Minnesota and Wisconsin. Neither state offers retail electric choice for cooperative members, and Minnesota electric co-ops largely self-regulate rates rather than filing with the MPUC. C&I members cannot select a competitive supplier.
Need to pull your actual usage data to compare rates? See the East Central Energy Data Access Guide →
Current Rate Schedules
ECE's commercial rates changed effective January 2026 and are published as downloadable rate schedules on the Charges & Fees (Commercial) page. Each commercial account pays a cost-of-basic-service charge plus a per-kWh energy charge; General Service adds demand-based charges. The specific 2026 commercial $/kWh and $/kW figures are provided only in ECE's PDF rate schedules (not machine-readable), so the schedules below cite structure and tariff references rather than asserting unverified dollar amounts. As a published anchor, ECE's 2026 residential cost-of-basic service is $46/month at 12.0 cents/kWh.
Effective: January 1, 2026 · Full Tariff Book →
| Schedule | Type | Applicability | Structure | Rate |
|---|---|---|---|---|
| Small General Service (SGS) | commercial | All non-residential members, single or three-phase, with metered monthly demand under 50 kW. | Cost-of-basic-service charge plus a per-kWh energy charge (no demand charge at this tier). If demand reaches/exceeds 50 kW for three consecutive months, billing moves to General Service. Exact 2026 $/kWh and basic-service figures are in ECE's published 2026 SGS rate schedule PDF. | — |
| General Service (GS) | commercial | Non-residential members with metered monthly demand of 50 kW or greater for at least three consecutive months. | Cost-of-basic-service charge plus per-kW demand charge plus per-kWh energy charge. Reverts to SGS if demand stays under 50 kW for 12 consecutive months. Exact 2026 $/kW and $/kWh figures are in ECE's published 2026 GS rate schedule PDF. | — |
| Commercial & Industrial Interruptible Service (C&I) | industrial | Non-residential members maintaining ~50 kW of controllable load who agree to a Control Alternative for load reduction. | Discounted general-service rate in exchange for agreed load curtailment when called; requires a service agreement. Rates set in ECE's C&I rate schedule (most recent published version dated 2024). | — |
Rate Recommendations by Use Case
Small business / light commercial under 50 kW demand
These members fall on Small General Service (SGS): cost-of-basic-service plus per-kWh energy, with no demand charge.
Without a demand charge, total kWh and the fixed basic-service charge drive the bill; staying under 50 kW avoids General Service demand charges.
- Request ECE's free annual rate review
- Use Green Button data to confirm you stay under 50 kW
- Add your consultant as a SmartHub Authorized User (NDA required)
Mid-size to large commercial facility 50 kW+ demand
General Service (GS) applies once demand is 50 kW+ for three consecutive months, adding a per-kW demand charge.
Demand charges make peak management valuable; ECE's 15-minute Green Button data lets you pinpoint and shave peaks.
- Pull Green Button 15-minute interval XML to identify peak windows
- Stagger startups to reduce billed demand
- Confirm the 12-month down-hysteresis if your demand drops below 50 kW
Industrial member with curtailable load
C&I Interruptible Service offers a discounted rate for members maintaining ~50 kW of controllable load who agree to curtail when called.
If operations can tolerate curtailment events, the interruptible discount can beat standard GS; load-control status is visible in SmartHub.
- Confirm you can maintain ~50 kW controllable load
- Review the Control Alternatives in the C&I rate schedule
- Model interruptible vs. standard GS with your actual load profile
Energy consultant / aggregator (e.g., Nectar) needing member data
ECE has strong first-party Green Button DMD but no public API; plan for SmartHub Authorized User access, member-shared Green Button XML (with an NDA), or Nectar's API.
15-minute ESPI XML (up to 14 months) is readily exportable by members; automated CMD is unconfirmed, so manual sharing or Nectar's API is the practical route.
- Have the member add you as a SmartHub Authorized User (NDA required)
- Otherwise collect member-exported Green Button XML
- Use Nectar's API for ECE billing data — see docs.nectarclimate.com; or call 1-800-254-7944
Historical Rate Trends
ECE's board approves rate adjustments periodically. The most recent commercial SGS and GS rate changes took effect January 2026; the C&I Interruptible schedule was last revised in 2024. For residential, the 2026 cost-of-basic-service rose to $46/month (a $1 increase) with energy at 12.0 cents/kWh, plus a continued variable Power Cost Adjustment — a useful anchor for the direction of commercial changes.
January 1, 2026
ECE board-approved 2026 rate adjustment took effect, updating SGS and GS commercial schedules (residential cost-of-basic-service rose to $46/month at 12.0 cents/kWh).
n/aJanuary 1, 2024
Prior commercial rate update; current C&I Interruptible Service rate schedule dates to this 2024 revision.
n/aOverall trend: Modest upward adjustments effective January 2026; ongoing variable Power Cost Adjustment tracks wholesale power costs.
Next expected change: Set by ECE board action; next commercial change timing not announced. Power Cost Adjustment varies with wholesale costs.
Cost Optimization Strategies
Because ECE commercial bills combine a fixed basic-service charge, per-kWh energy, and (at GS) per-kW demand, the biggest levers are managing the 50 kW SGS/GS threshold, controlling peak demand at GS, and using the C&I Interruptible rate where load is curtailable. ECE's free annual rate review is a no-cost first step.
Use ECE's free annual rate review
For: All commercial members
ECE reviews each business's consumption history against applicable rates and may recommend a lower-cost schedule at no charge. Request it before buying equipment or changing operating hours.
Manage the 50 kW SGS/GS threshold
For: Members near 50 kW demand
Crossing 50 kW for three consecutive months moves you to General Service and its demand charge. If you are near the line, shaving peaks to stay under 50 kW (or, conversely, accepting GS and optimizing demand) can materially change the bill given the 12-month down-hysteresis.
Cut peak demand on General Service
For: General Service (GS)
At GS, per-kW demand charges reward lower peaks. Use Green Button 15-minute data to find peak intervals and shift or stagger loads to reduce billed demand.
Enroll in C&I Interruptible / load management
For: Industrial members with curtailable load
Members with at least ~50 kW of controllable load can take a discounted rate in exchange for curtailment when called, and view load-control events in SmartHub.
To implement these strategies, you need your 15-minute interval data. Learn how to download East Central Energy interval data →
Frequently Asked Questions
Can a commercial member pull 15-minute interval data from East Central Energy?▾
Yes. ECE's AMI meters collect 15-minute interval data, and any SmartHub member can use Green Button Download My Data to export up to 14 months of interval usage as ESPI-standard XML (zipped) at no charge. This is the recommended path for energy analysis, solar design, and benchmarking in tools like ENERGY STAR Portfolio Manager.
Which rate schedule applies to my business?▾
ECE assigns non-residential members by demand: Small General Service (SGS) for metered demand under 50 kW, and General Service (GS) when demand is 50 kW or greater for at least three consecutive months. A Commercial & Industrial Interruptible Service (C&I) rate is available to members maintaining ~50 kW of controllable load. ECE reviews each business's usage annually and may recommend a lower-cost rate — a free service via 1-800-254-7944.
How can my energy consultant or Nectar access my ECE data?▾
The cleanest path is to add the consultant as a SmartHub Authorized User (ECE requires an NDA for any third party receiving member information), or to export your Green Button XML and share it directly. ECE has no public API; for automated access, Nectar provides API access to this utility's billing data — see docs.nectarclimate.com — or call Business Accounts at 1-800-254-7944.
Does East Central Energy support Green Button Connect My Data (automated sharing)?▾
The underlying NISC SmartHub platform supports the Green Button Connect My Data (CMD) framework with OAuth 2.0, but ECE has not confirmed an active, advertised CMD program. Confirmed today is Green Button Download My Data (manual export). Confirm CMD availability with ECE at 1-800-254-7944 before relying on automated authorization.
Where can I see the exact commercial rates and demand charges?▾
ECE publishes its 2026 SGS and GS rate schedules and the C&I rate schedule on the Charges & Fees (Commercial) page; rates changed effective January 2026. The page links the current PDFs and notes that every commercial account pays a cost-of-basic-service charge plus per-kWh energy and (for GS) demand charges. For an exact quote, ECE invites businesses to call 1-800-254-7944 for personalized rate information.
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