Columbia Power and Water Systems (CPWS)
Columbia Power and Water Systems (CPWS) is a municipal electric utility serving customers in Tennessee. Municipal utility serving Columbia and Spring Hill (Maury County). TVA power; monthly FCA varies. Also provides water and CPWS Fiber broadband in its territory.
This page brings together tariff-based rate information from our research, federal EIA statistics on sales and generation when available, and the cities and states this provider serves.
Residential rates
Municipal utility serving Columbia and Spring Hill (Maury County). TVA power; monthly FCA varies. Also provides water and CPWS Fiber broadband in its territory.
Our estimates use tariff and official rate data from utility and regulatory sources. See our methodology for how we calculate bill estimates.
States & cities served
Cities in our dataset where this provider offers electric service. Click through to see utility cost estimates for each city.
Data sources
- Our research: Tariff documents, PSC/regulatory filings, and official utility rate schedules. Each city page cites sources and last-verified dates.
- EIA (2024): Form 861 (sales, revenue, customers) and Form 860 (generation capacity by fuel). Supplementary context; our tariff-based rates remain primary for bill estimates.
Compare utility costs by state
Explore average utility costs across all cities and states in our dataset.
Understanding electricity costs
Learn how electric bills are calculated, what drives usage, and how rates vary by market.