Carroll Electric Cooperative Corporation Rate Selection Guide
Carroll Electric Cooperative Corporation is a member-owned electric cooperative serving roughly 121,000 meters across 11 counties in Northwest Arkansas and Southwest Missouri. Billing and usage data are accessed through the NISC SmartHub and MyAccount portals, with AMI smart-meter coverage across the territory and likely (but undocumented) Green Button export.
Carroll Electric Cooperative Corporation Rate Schedule Comparison
| Schedule | Type | Rate | Best For |
|---|---|---|---|
| Rate 2 - Three-Phase | Commercial (<100 kW) | 12.056¢ / 11.164¢ per kWh tiered | Small three-phase businesses |
| Rate 3 | Commercial (100-250 kW) | 8.004¢/kWh + $9.12-$12.16/kW | Mid-size C&I |
| Rate 4 | Industrial (>250 kW) | 7.208¢/kWh + $12.15-$15.78/kW | Large industrial loads |
| Rate 14 | Optional (>50 kW) | 7.534¢/kWh + $11.69/kW coincident | Peak-flexible loads |
Market Overview
Member-owned cooperative with an exclusive service territory and no retail choice. Rates are board-approved and filed with the Arkansas Public Service Commission, with a wholesale power cost adjustment layered on base rates.
Need to pull your actual usage data to compare rates? See the Carroll Electric Cooperative Corporation Data Access Guide →
Current Rate Schedules
Carroll Electric's condensed rate schedule effective for bills on or after April 17, 2025. Commercial and industrial members are served under demand-based rates (Rate 3, Rate 4, and optional Rate 14), with three-phase small commercial under Rate 2. All energy rates are subject to a wholesale power cost adjustment (base wholesale cost of $0.085/kWh). Demand charges are seasonal, with higher summer rates.
Effective: April 17, 2025 · Full Tariff Book →
| Schedule | Type | Applicability | Structure | Rate |
|---|---|---|---|---|
| Rate 2 - Three-Phase (<100 kW) | commercial | Three-phase commercial service with demand under 100 kW. | Availability charge plus tiered energy. No demand charge. | 12.056¢/kWh (0-500 kWh); 11.164¢/kWh (501+ kWh)+ None |
| Rate 3 - Demand 100-250 kW | commercial | Service with demand greater than 100 kW but less than 250 kW. | Availability charge plus seasonal demand charge plus flat energy charge. | 8.004¢/kWh (all kWh)+ $9.12/kW winter, $12.16/kW summer; $101.31 availability |
| Rate 4 - Large Commercial (>250 kW) | industrial | Commercial service with demand greater than 250 kW. | Availability charge plus seasonal demand charge plus flat energy charge. | 7.208¢/kWh (all kWh)+ $12.15/kW winter, $15.78/kW summer; $151.95 availability |
| Rate 14 - Optional Coincident Demand (>50 kW) | commercial | Optional rate for commercial service with demand greater than 50 kW. | Availability charge plus coincident kW demand charge plus billing demand charge plus flat energy charge. | 7.534¢/kWh (all kWh)+ $11.69/kW coincident + $2.40/kW billing demand; $151.95 availability |
Rate Recommendations by Use Case
Mid-size commercial (100-250 kW)
Office buildings, retail centers, and light manufacturing in this demand band fall under Rate 3.
Rate 3's 8.004¢/kWh energy charge is well below small-commercial tiers; the seasonal demand charge ($9.12-$12.16/kW) rewards flattening peak demand.
- Stagger HVAC and large-equipment startup to limit peak demand
- Demand is higher in summer - pre-cool and shift loads off afternoon peaks
- Track interval data via SmartHub to find your monthly peak driver
Large industrial / >250 kW
Manufacturing and large facilities above 250 kW are served under Rate 4.
Rate 4 has the lowest energy charge (7.208¢/kWh) but the highest demand charge ($12.15-$15.78/kW), so demand management drives the bill.
- Target the single highest 15-minute demand interval each month
- Evaluate on-site generation or storage for summer peak shaving
- Pull 15-minute interval data to model demand-charge exposure
Peak-flexible loads (>50 kW)
Facilities that can curtail during the cooperative's system peak should compare Rate 14.
Rate 14 splits demand into a coincident-peak charge ($11.69/kW) plus a low billing-demand charge ($2.40/kW); loads that reduce consumption at system peak can save versus a standard non-coincident demand charge.
- Identify Carroll Electric's typical system peak windows
- Use interval data to verify you can curtail during those windows
- Model Rate 14 vs. Rate 3/4 before electing
Small three-phase commercial
Small businesses with three-phase service under 100 kW are on Rate 2.
Rate 2 is energy-only (no demand charge) with tiered pricing, so total kWh matters most; efficiency upgrades pay back directly.
- Focus on kWh reduction (lighting, HVAC efficiency)
- Watch the wholesale power cost adjustment line on bills
- Enroll in SmartHub to monitor daily usage
Historical Rate Trends
Carroll Electric's current condensed rate schedule took effect for bills on or after April 17, 2025. Base energy rates are layered with a wholesale power cost adjustment that moves up or down with the cooperative's wholesale power cost (base $0.085/kWh), so effective bills change between formal rate filings.
April 17, 2025
Current condensed rate schedule effective; demand-based C&I rate classes (Rate 3, 4, 14) and tiered small-commercial rates.
Not disclosedOverall trend: Energy charges float month to month with the wholesale power cost adjustment; formal base-rate changes are filed with the Arkansas PSC.
Next expected change: Per the next board-approved rate filing with the Arkansas PSC; no date announced.
Cost Optimization Strategies
Because all sizable C&I members pay demand charges (and Rate 4's are the steepest), peak demand management is the primary cost lever, followed by selecting the optimal rate class and monitoring the wholesale power cost adjustment.
Peak demand management
For: Rate 3, Rate 4
Stagger equipment startups, pre-cool, and shift discretionary loads off summer afternoon peaks to lower billed kW.
Rate class optimization
For: All C&I
Confirm you are on the lowest-cost class for your demand profile, and model Rate 14 if you can curtail at system peak.
Interval data monitoring
For: All C&I
Use SmartHub (or the SmartHub API) interval data to identify peak drivers and validate demand-reduction measures.
On-site generation / storage
For: Rate 4, Rate 14
Solar plus storage or a peaking generator can shave summer coincident peaks, especially under Rate 4 and Rate 14.
To implement these strategies, you need your 15-minute interval data. Learn how to download Carroll Electric Cooperative Corporation interval data →
Frequently Asked Questions
How does a commercial customer download billing data from Carroll Electric?▾
Register a commercial login at MyAccount (myaccount.carrollecc.com) or SmartHub, open the Bill & Pay tab, and download itemized bills as PDF. For multi-site portfolios, link accounts under one login. Custom or bulk historical exports can be requested at 1-800-432-9720.
Can a third-party energy consultant get automated access to our data?▾
There is no documented formal third-party API (Connect My Data / Share My Data) program. In practice, access is customer-mediated: the account owner shares portal access or downloads bills and Green Button/usage files to send to the consultant. A written authorization request can be made by calling 1-800-432-9720.
Is 15-minute interval data available for C&I sites?▾
AMI meters store 15-minute interval data in the NISC backend. Standard portal/CSV export currently provides hourly granularity (15-minute CSV export ended in January 2024), but 15-minute data can be retrieved via the undocumented SmartHub API used by community tools.
Which rate class applies to a large commercial or industrial facility?▾
Loads over 250 kW are served under Rate 4 (7.208¢/kWh energy plus $12.15-$15.78/kW demand). Loads of 100-250 kW fall under Rate 3 (8.004¢/kWh plus $9.12-$12.16/kW). Peak-flexible loads over 50 kW may elect optional Rate 14, which uses a coincident-peak demand charge.
Does Carroll Electric support EDI for C&I billing data?▾
No customer-facing EDI program is publicly documented. The cooperative uses the NISC iVUE billing system; C&I customers needing EDI 814/867 metered data should contact Business Operations at 1-800-432-9720 to ask whether trading-partner EDI is available.
Can we shop for a competitive electricity supplier?▾
No. Arkansas does not have retail electric choice, and Carroll Electric is a member-owned cooperative with an exclusive service territory. Rates are board-approved and filed with the Arkansas PSC, with a wholesale power cost adjustment applied to energy charges.
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