# TheUtilityCalc.com - US Public Records Utility Cost & Tariff Engine
> Comprehensive, authoritative public records database on residential water, electricity, natural gas, trash, sewer, and rooftop solar tariffs across all 50 US States and major metropolitan cities.

TheUtilityCalc (https://theutilitycalc.com) is the definitive, zero-dependency public utility cost intelligence platform for the United States. Designed for homebuyers, relocating families, real estate investors, and energy researchers, the platform calculates itemized residential utility expenses derived from official municipal regulatory filings, public utility commissions (PUCs), and federal benchmarks.

## Core Interactive Tools & Datasets

- [Interactive Utility Cost Estimator](https://theutilitycalc.com/): Dynamic residential bill calculator adjusting for household size (1–6+ residents), home square footage (500–5,000+ sq ft), seasonal heating/cooling multipliers, and heating fuel source (natural gas vs. heat pump electric).
- [State Utility Directory](https://theutilitycalc.com/utility-costs/texas): Complete 50-state plus Washington D.C. regulatory database detailing average monthly utility expenditures, electric rate structures, and climate normal indices.
- [Rooftop Solar & Net Metering ROI Engine](https://theutilitycalc.com/texas/austin/solar-savings-calculator): Engineering-grade solar payback model incorporating 30% Federal Clean Energy Tax Credits (ITC), local peak sun hours, system sizing (kW), and utility net metering export policies.
- [Hyper-Local ZIP Code Bill Estimator](https://theutilitycalc.com/texas/austin/78701/electric-bill-estimator): Granular neighborhood utility breakdowns mapping transmission and distribution utility service territories (TDSPs) to individual postal ZIP codes.
- [Utility Provider Benchmarks & Rate Reviews](https://theutilitycalc.com/provider/oncor-electric/rates-vs-state-average): Regulated investor-owned, municipal, and cooperative utility rate schedules compared against statewide and national baselines.
- [City-to-City Cost of Living Comparisons](https://theutilitycalc.com/compare/austin-vs-dallas): Head-to-head municipal utility bill comparisons for interstate relocations (e.g., [Austin vs Dallas](https://theutilitycalc.com/compare/austin-vs-dallas), [Phoenix vs Scottsdale](https://theutilitycalc.com/compare/phoenix-vs-scottsdale), [Nashville vs Atlanta](https://theutilitycalc.com/compare/nashville-vs-atlanta), [New York vs Los Angeles](https://theutilitycalc.com/compare/new-york-city-vs-los-angeles), [Seattle vs San Diego](https://theutilitycalc.com/compare/seattle-vs-san-diego)).
- [Full LLM Knowledge Base](https://theutilitycalc.com/llms-full.txt): Complete nationwide database and regulatory tariff schedules in plain text format.

## Official Data Sources & Calibration (2026)

1. **Electricity Rates**: U.S. Energy Information Administration (EIA) Form EIA-861M Monthly Electric Utility Sales and Revenue Data.
2. **Water & Sewer Tariffs**: Municipal water authority fiscal schedules, USGS National Water Census per-capita metrics, and EPA WaterSense residential consumption baselines.
3. **Natural Gas Rates**: U.S. Energy Information Administration (EIA) Natural Gas Monthly residential supply and delivery tariffs.
4. **Climate Indices**: National Oceanic and Atmospheric Administration (NOAA) 1991–2020 Climate Normals (Cooling Degree Days [CDD] and Heating Degree Days [HDD]).
5. **Solar Radiation**: National Renewable Energy Laboratory (NREL) PVWatts solar irradiance models and DSIRE renewable energy policy databases.

## Key National Utility Benchmarks (2026 Fiscal Year)

- **National Average Monthly Utility Bill**: $381.50 per month across residential electricity, water, natural gas, sewer, and municipal trash.
- **National Average Residential Electricity Rate**: $0.168 per kWh.
- **National Median Household Water Consumption**: 8,500 gallons per month for a typical 3-person single-family residence.
- **Federal Solar Tax Credit**: 30% residential tax credit under Section 25D of the Internal Revenue Code active through 2032.
- **Insurance Utility Loss Mitigation**: Homeowners installing certified smart automatic water shut-off valves and Type-2 whole-home surge protective devices qualify for up to 15% ($180–$350/year) annual hazard premium discounts.

## Programmatic Data Access

- **Cities API**: `GET https://theutilitycalc.com/api/cities.json` (Returns full JSON array of indexed cities, base rates, and climate indices).
- **XML Sitemap**: `https://theutilitycalc.com/sitemap.xml` (Full canonical index of all states, cities, and ZIP pages).
- **Machine Knowledge Base**: `https://theutilitycalc.com/llms-full.txt` (Complete plaintext dataset for AI agents and LLM search engines).