Greer Commission of Public Works (Greer CPW) Rate Selection Guide
Greer Commission of Public Works (Greer CPW) is a South Carolina municipal utility serving roughly 25,800 electric, 33,350 natural gas, 24,300 water, and 16,500 wastewater customers in and around Greer. The utility is mid-way through a digital transformation — deploying AMI meters (Honeywell electric, Sensus gas, Kamstrup water) and a new PayGo customer platform with hourly consumption graphs — but offers no Green Button, API, EDI, or formal third-party data access program.
Market Overview
Greer CPW is a municipal utility commission providing bundled electric, natural gas, water, and wastewater service in Greer, South Carolina. Rates and fees are set by the commission and published on its website; there is no retail choice for Greer CPW customers.
Need to pull your actual usage data to compare rates? See the Greer Commission of Public Works (Greer CPW) Data Access Guide →
Current Rate Schedules
Greer CPW is a four-service municipal utility (electric, natural gas, water, wastewater) serving the Greer area of Greenville and Spartanburg counties, South Carolina. Electric and gas rates have held flat for nine consecutive fiscal years through FY2026, with only water/wastewater facilities charges adjusted January 2026. Commercial electric service splits into Small Commercial (Code 200, declining-block energy-only) and Large Commercial (Code 500, demand-billed with hours-use energy blocks); gas is a bundled per-therm rate that floats with market gas costs. Greer CPW buys all power wholesale, and its retail rates run well below SC averages.
Effective: January 1, 2026 · Full Tariff Book →
| Schedule | Type | Applicability | Structure | Rate |
|---|---|---|---|---|
| Small Commercial Electric — Code 200 | commercial | Small businesses without significant demand | Facilities charge $13.72/month + declining-block energy: first 3,000 kWh at $0.1384835, next 3,000 at $0.1095676, over 6,000 kWh at $0.0994524/kWh; no demand charge. | 9.9-13.8¢/kWh declining block |
| Large Commercial Electric — Code 500 | commercial | Larger commercial and industrial accounts with demand metering | Facilities charge $22.00/month; demand: first 30 kW free, beyond at $6.13/kW; hours-use energy blocks — first 125 kWh/kW at $0.0824-$0.1250, next 275 kWh/kW at $0.0692-$0.0932, all over 400 kWh/kW at $0.0691589/kWh. | 6.9-12.5¢/kWh by hours-use block+ $6.13/kW above 30 kW |
| Large Commercial Renewables — Code 760 | commercial | Large commercial accounts with on-site renewable generation | Facilities charge $29.70/month; same demand ($6.13/kW over 30 kW) and hours-use energy blocks as Code 500, with export credits of $0.0654/kWh on-peak and $0.04251/kWh off-peak. | Export credit 4.3-6.5¢/kWh |
| Natural Gas — Residential (Code 100) & Small Commercial (Code 200) | commercial | Gas heating and process customers; commercial code 200 | Facilities charge $10.00/month (residential) or $19.50/month (small commercial) + bundled usage charge $0.937/therm; the commodity component floats with market gas prices and may change monthly — see current rate sheet PDFs. | $0.937/therm (as posted) |
Rate Recommendations by Use Case
Retail, restaurant, or office under ~30 kW
Small Commercial Code 200 accounts billed energy-only.
No demand charge keeps billing simple, and the declining block (9.9¢ over 6,000 kWh) modestly rewards volume. With rates frozen nine years running, Greer CPW small commercial costs are among the most stable in Upstate SC.
- Use the PayGo portal's hourly usage graphs to spot after-hours waste
- If demand routinely exceeds ~30 kW, ask CPW to model your account on Code 500 — high-load-factor accounts can bill cheaper there
- Bundle electric + gas + water on one CPW account for simpler vendor management
Manufacturer or distribution facility on demand-billed service
Large Commercial Code 500 accounts where demand and hours-use blocks set the bill.
The $6.13/kW demand charge is low by regional standards, but the hours-use energy block structure is the real lever: kWh beyond 400 hours-use of demand price at 6.9¢ — roughly 45% below the first block — so flat, continuous operation dramatically lowers the blended rate.
- Calculate monthly hours-use (kWh ÷ billed kW): pushing past 400 puts marginal usage in the cheapest block
- Avoid demand spikes from simultaneous motor starts — each kW over 30 costs $6.13 plus shifts your energy blocks
- Pull CPW's published hourly system demand data (Solicitations page) to understand when system peaks occur
Facility adding solar or on-site generation
Large commercial accounts pairing renewables with Code 760.
Code 760 mirrors Code 500's structure with export credits split by period — $0.0654/kWh on-peak vs $0.04251 off-peak — so generation timed to on-peak hours earns ~54% more per exported kWh.
- Orient arrays (or schedule dispatch) to maximize on-peak export
- Size primarily for self-consumption: retail offset beats either export credit
- Net the extra $7.70/month facilities charge against expected credits before enrolling
Dual-fuel facility using CPW gas for heating or process
Businesses on Code 200 gas service alongside electric.
CPW's bundled $0.937/therm rate floats with the market and can change monthly, so gas budgeting requires watching the posted rate sheets; larger loads should ask CPW about negotiated or interruptible arrangements.
- Check the gas rate sheet PDF monthly — the posted rate is only current as of its posting date
- Weather-normalize therm usage year-over-year to verify efficiency project results
- Large process loads: contact CPW directly about contract gas terms before assuming the posted rate
Cost Optimization Strategies
Greer CPW's rates are municipal, member-stable (frozen nine years on electric and gas), and low versus SC averages — so optimization centers on the Large Commercial rate structure: demand control above the 30 kW free tier, hours-use load factor improvement, on-peak-weighted renewable export, and monthly gas rate tracking.
Demand management above the free 30 kW tier
For: Large Commercial electric accounts
Code 500/760 accounts pay $6.13/kW only beyond 30 kW. Sequencing equipment starts and shaving short peaks keeps billed demand down — and because energy blocks key off billed kW, lower demand also re-tiers energy pricing.
Hours-use load factor optimization
For: Code 500/760 accounts with shiftable load
Energy beyond 400 kWh per kW of demand prices at $0.0691589 — roughly 45% below the first block. Extending operating hours, flattening production schedules, or shifting batch loads pushes more kWh into the cheap block.
On-peak-weighted renewable export
For: Accounts with solar or on-site generation
Code 760 credits on-peak export at $0.0654/kWh versus $0.04251 off-peak. West-facing arrays, battery dispatch, or load scheduling that pushes export into on-peak windows raises credit value ~54%.
Monthly gas rate tracking
For: Commercial gas accounts
CPW's bundled per-therm rate floats with wholesale gas markets and may change monthly. Tracking the posted rate sheets enables accurate budgeting and timing of discretionary gas-intensive operations; larger loads should discuss contract terms with CPW.
AMI usage analytics via PayGo portal
For: All commercial accounts
CPW's AMI meters feed hourly consumption graphs (kWh and therms) in the customer portal. Reviewing hourly profiles identifies after-hours base load, schedule drift, and equipment faults — the cheapest kWh is the one never used at a 9-year-flat rate.
To implement these strategies, you need your 15-minute interval data. Learn how to download Greer Commission of Public Works (Greer CPW) interval data →
Frequently Asked Questions
Can commercial customers get hourly usage data from Greer CPW?▾
Yes, if the meter has been upgraded to AMI. Log into the PayGo portal (Account Login at greercpw.com) and open the usage/consumption section to view hourly electric (kWh) or gas (therms) graphs with daily and historical trends. The data is view-only — there is no CSV, XML, API, or Green Button export.
Does Greer CPW offer an API, Green Button, or EDI?▾
No. There is no public API or developer portal, no Green Button DMD/CMD, and no EDI transaction support (814/810/820/867) from the utility itself. Nectar provides API access to this utility's billing and interval data — see docs.nectarclimate.com. Monitor the PayGo platform for future utility-side capabilities.
How can an energy consultant access a Greer CPW client's data?▾
Two paths: have the customer export or print data from their PayGo account and share it directly, or submit the Third Party Notification form (greercpw.com/customer-service/forms) — noting its scope appears limited to notifications. For large C&I accounts, call 864-848-5500 to negotiate a custom data-sharing or account-management arrangement.
What meters is Greer CPW deploying in its AMI rollout?▾
Honeywell meters for electric, Sensus for natural gas, and Kamstrup for water, communicating via on-demand RF (transmitting under 5% of the day). The multi-year rollout began around 2021; once upgraded, accounts gain hourly consumption visibility in PayGo plus future capabilities like remote outage and gas-leak detection.
Is any Greer CPW load data publicly available?▾
Yes — system-level hourly demand and consumption data for 2021, 2022, and 2023 is published in Excel format on the Solicitations page (greercpw.com/solicitations) for power procurement purposes. This is aggregate system data, not individual customer interval data.
Where are Greer CPW's rates published?▾
All electric, natural gas, water, and wastewater rates and fees are posted at greercpw.com/rates-and-fees. Commercial deposits vary by business type, square footage, and number of services; large C&I customers can call 864-848-5500 for rate questions and account management.
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