Cullman Electric Cooperative Rate Selection Guide
Cullman Electric Cooperative is a member-owned electric distribution cooperative serving roughly 48,400 members in north-central Alabama and a distributor of TVA-supplied power. Members access billing and usage data through the NISC SmartHub portal; the co-op also offers Sprout Fiber internet. Rates are TVA-driven and there is no retail choice.
Cullman Electric Cooperative Rate Schedule Comparison
| Schedule | Type | Rate | Best For |
|---|---|---|---|
| General Power (GSA-1) | Commercial | Customer charge + energy ($/kWh); see rates page | Small businesses under ~50 kW |
| General Power (GSA-2) | Commercial | Customer + demand ($/kW) + energy ($/kWh) | Mid-size C&I ~50-1,000 kW |
| General Power (GSA-3) | Commercial | Demand-dominated; customer + $/kW + $/kWh | Large C&I ~1,000-5,000 kW |
| Manufacturing Service (MSB) | Industrial | Demand + energy per TVA manufacturing schedule | Large manufacturers above ~5,000 kW |
Market Overview
As a TVA distributor cooperative, Cullman has no retail supplier choice. Power is purchased wholesale from TVA and resold to members at board-approved rates aligned to TVA's standard rate classes. TVA cost changes (some quarterly, some monthly) flow through to member bills.
Need to pull your actual usage data to compare rates? See the Cullman Electric Cooperative Data Access Guide →
Current Rate Schedules
Cullman Electric is a TVA distributor; its C&I rate classes follow TVA's standard General Power (GSA) and Manufacturing Service structures, with board-approved retail figures published on the co-op's rates page. Specific current dollar amounts are not asserted here because Cullman's exact tariff sheets were not verified in a published source; the schedules below describe the standard structure and applicability. Refer to the official rates page for current figures.
Effective: April 1, 2025 · Full Tariff Book →
| Schedule | Type | Applicability | Structure | Rate |
|---|---|---|---|---|
| General Power (GSA-1) - Small Commercial | commercial | Small commercial/non-residential accounts with monthly demand under ~50 kW. | Monthly customer (service) charge plus an energy charge per kWh; typically no separately billed demand charge at this tier. TVA-aligned GSA Part 1. | Structure only - see official Cullman rates page for current customer and energy charges+ Generally none at this tier |
| General Power (GSA-2) - Medium Commercial | commercial | Commercial/industrial accounts with demand roughly 50-1,000 kW. | Customer charge + per-kW demand charge + per-kWh energy charge. TVA-aligned GSA Part 2. | Structure only - customer charge + demand ($/kW) + energy ($/kWh); see official rates page+ Per-kW demand charge applies (figure not verified) |
| General Power (GSA-3) - Large Commercial | commercial | Large commercial/industrial accounts with demand of roughly 1,000 kW and above (up to ~5,000 kW). | Customer charge + demand charge per kW + energy charge per kWh, often with summer/winter and on/off-peak differentiation. TVA-aligned GSA Part 3. | Structure only - demand-dominated; see official rates page for current $/kW and $/kWh+ Per-kW demand charge applies (figure not verified) |
| Manufacturing Service (MSB) | industrial | Qualifying manufacturing customers (SIC 20-39) with contracted demand above ~5,000 kW. | Demand charge per kW + energy charge per kWh + customer charge, billed under TVA's manufacturing service structure. | Structure only - large industrial; see TVA / Cullman rates for current figures+ Per-kW demand charge applies (figure not verified) |
| Outdoor / Area Lighting | commercial | Commercial and area lighting service (security and outdoor lighting). | Fixed monthly charge per fixture based on lamp type and wattage. | Structure only - per-fixture monthly charge; see official rates page+ None |
Rate Recommendations by Use Case
Small commercial member (under ~50 kW)
Small shops, offices, and light commercial accounts fall under General Power GSA-1, which is energy-charge driven with a fixed customer charge.
At this tier there is typically no separately billed demand charge, so energy efficiency and load reduction directly lower the bill. Confirm current customer and energy charges on the co-op rates page.
- Use the free Usage Tracker to spot high-consumption days
- Set usage alerts to catch unexpected spikes
- Improve lighting and HVAC efficiency to cut kWh
Mid-size commercial / light industrial (~50-1,000 kW)
Accounts in GSA-2 begin paying a per-kW demand charge, so managing peak demand becomes a meaningful cost lever.
Because a demand charge applies, flattening the monthly peak reduces cost even if total energy is unchanged. Interval data (via Usage Tracker, community tool, or LOA request) helps identify the peak.
- Identify and stagger large equipment startups
- Request interval data to find your monthly demand peak
- Discuss demand-management options with Key Accounts (256-737-3226)
Large industrial / manufacturer (1,000 kW+)
Large GSA-3 and Manufacturing Service accounts are demand-dominated and benefit most from peak and power-factor management.
Demand charges drive the bill at this scale, and TVA wholesale cost adjustments flow through. Confirm whether a Manufacturing Service schedule applies (SIC 20-39, demand above ~5,000 kW) for potentially better terms.
- Engage Key Accounts to confirm the optimal rate class
- Manage coincident peak demand to lower $/kW charges
- Maintain high power factor to avoid penalties
Historical Rate Trends
Cullman's retail rates track TVA wholesale costs plus board-approved local adjustments. In 2024 the co-op announced a two-step increase to address TVA cost increases and surging infrastructure demand from rapid service-area growth.
October 1, 2024
First of a two-step increase: residential energy charge up ~1% and the standard 200-amp customer charge up $4/month, raising the average residential bill by $5-$6; non-residential/commercial accounts also saw base and kWh increases.
~1% energy (residential)April 1, 2025
Second step of the increase, raising the average residential bill by another $5-$6/month, with corresponding non-residential adjustments.
N/AAugust 1, 2024
TVA wholesale cost increase passed through to distributors, adding ~$3-$4/month to the average residential bill (revenue passed to TVA).
N/AOverall trend: Upward, driven by TVA wholesale increases and infrastructure investment; the co-op noted it had only one rate increase in the prior six years before the 2024-2025 steps.
Next expected change: Periodic TVA cost adjustments (some monthly, some quarterly) and future board-approved changes.
Cost Optimization Strategies
For Cullman C&I members, savings come primarily from peak demand management on GSA-2/GSA-3 accounts, energy efficiency, and confirming the correct (lowest-cost) TVA-aligned rate class with Key Accounts.
Peak demand management
For: GSA-2, GSA-3, MSB
Use Usage Tracker or interval data to find and flatten monthly demand peaks that drive per-kW charges on GSA-2 and GSA-3.
Rate-class verification
For: All C&I
Work with Key Accounts (256-737-3226) to confirm the account is on the most economical TVA-aligned schedule for its demand and SIC profile.
Energy efficiency
For: All C&I
Reduce kWh through lighting, HVAC, and process upgrades; lower consumption directly cuts energy charges and TVA cost pass-throughs.
Power factor management
For: GSA-3, MSB
Maintain high power factor at larger industrial sites to avoid penalties and reduce billed demand.
To implement these strategies, you need your 15-minute interval data. Learn how to download Cullman Electric Cooperative interval data →
Frequently Asked Questions
How can a business get interval data from Cullman Electric?▾
There is no official interval-data export. AMI meters capture 15-minute data; advanced users access it via the community electric-usage-downloader tool (unofficial), or you can submit a signed Letter of Authorization to Member Services and receive data as Excel, typically within 10-15 business days.
Does Cullman Electric support Green Button or an API?▾
No. Cullman has not implemented Green Button (Download or Connect My Data), has no public API or developer portal, and no EDI program. Data access is via the SmartHub portal or manual LOA requests.
How does a consultant request data on behalf of a commercial member?▾
Prepare a Letter of Authorization signed by the account holder specifying data scope and period, submit it to info@cullmanec.com or call Member Services (256-737-3200, Key Accounts 256-737-3226), and expect Excel data within about 2-3 weeks.
Who sets Cullman Electric's rates?▾
Cullman is a distributor of TVA power, so its wholesale costs and rate structures follow the Tennessee Valley Authority; the co-op board sets the retail schedules. Rates are not subject to retail-choice competition.
What rate schedules apply to commercial and industrial members?▾
As a TVA distributor, Cullman serves C&I members under TVA-aligned General Power (GSA) tiers by demand level and Manufacturing Service schedules for larger industrial loads. See the co-op rates page for current figures.
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