Energy costs in Round Rock, TX
Energy prices are published by state, not by city, so the rates and bills below are Texas figures and apply to Round Rock the same as anywhere else in the state. The solar production is different: that is modelled for Round Rock's own coordinates, and it varies a lot within a single state.
Solar at Round Rock's coordinates
9,131kWh a year from 6 kW
That is close to the Texas average, so the state figure would not have misled you here. At 16.44¢ a kilowatt hour it pays back in about 8 years with full net metering.
Electricity · Texas
16.44¢
per kWh, statewide ›
Typical bill · Texas
$173
a month, statewide ›
Air conditioning
$540
a year, statewide ›
Heating
$556
a season, statewide ›
Common questions
What is the electricity rate in Round Rock?
16.44¢ per kilowatt hour. That is the Texas residential average from the EIA — rates are published per state, not per city, so it applies across Round Rock and the rest of Texas alike.
What is the average electric bill in Round Rock?
About $173 a month for a typical Texas household. Again this is a state figure: EIA reports revenue and customer counts by state, so a city-level bill would be an invention.
Is solar worth it in Round Rock?
A 6 kW system at Round Rock's coordinates is modelled at about 9,131 kilowatt hours a year, which pays for itself in roughly 8 years at Texas electricity prices with full net metering. This one is genuinely local — production is modelled for this point, not the state.
Other cities in Texas
Everything for Texas
Rates, bills, heating, cooling and solar for the whole state, with the working behind each figure.
Texas energy costsCoordinates from the US Census Bureau place gazetteer. Solar production modelled by NREL PVWatts for those coordinates, south-facing at 20°. Prices from the US Energy Information Administration, residential sector, 2026-05, published per state.