Electric Tankless Water Heater in St. Petersburg — $852/yr to Run (13.0¢/kWh)
Your electric tankless water heater in St. Petersburg costs about $71/month at 13.0¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
St. Petersburg, FL Electricity Rate
13.0¢/kWh
Utility: Florida Power & Light
-0% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$2.33
18.0 kWh/day
Monthly Cost
$71.01
548 kWh/mo
Annual Cost
$852
6,570 kWh/yr
Lifetime (20yr)
$17,043
energy only
Monthly Cost Breakdown in St. Petersburg
| Period | kWh | St. Petersburg Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 18.0 | $2.33 | $2.34 | $-0.01 |
| Weekly | 126.0 | $16.34 | $16.38 | $-0.04 |
| Monthly | 547.5 | $71.01 | $71.17 | $-0.16 |
| Quarterly | 1642.5 | $213.03 | $213.53 | $-0.49 |
| Annual | 6570.0 | $852.13 | $854.10 | $-1.97 |
Customize Your Electric Tankless Water Heater Cost
Adjust usage hours and electricity rate to calculate your exact cost in St. Petersburg.
Daily
$2.33
Monthly
$71.01
Annual
$852
20-Year
$17,043
Energy Saving Tips for Electric Tankless Water Heater in St. Petersburg
- ✓St. Petersburg has below-average electricity rates, but saving energy still reduces your carbon footprint.
- ✓An ENERGY STAR Electric Tankless Water Heater in St. Petersburg saves ~$205/year compared to standard models.
- ✓A smart Electric Tankless Water Heater with scheduling optimization can save ~$128/year at St. Petersburg rates.
- ✓Install point-of-use units for remote fixtures
- ✓Size properly for peak demand
- ✓Consider electrical upgrade
ENERGY STAR Savings: Upgrading to an ENERGY STAR Electric Tankless Water Heater in St. Petersburg saves approximately $205/year at local rates — $4,090 over the appliance lifetime.
Highest-Cost Appliances in St. Petersburg, FL
See which appliances cost the most to run at St. Petersburg's 13.0¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$1,681/yr
$140.08/mo
Electric Furnace
HVAC · 10,000W
$1,167/yr
$97.28/mo
EV Charger (Level 2)
Garage · 7,200W
$840/yr
$70.04/mo
Boiler (Electric)
HVAC · 6,000W
$700/yr
$58.37/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$639/yr
$53.26/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$639/yr
$53.26/mo
Heat Pump
HVAC · 2,400W
$498/yr
$41.50/mo
Hot Tub / Spa
Pool & Spa · 3,000W
$467/yr
$38.91/mo
Electric Tankless Water Heater Cost in Other Florida Cities
| City | Rate | Annual Cost | vs St. Petersburg |
|---|---|---|---|
| St. Petersburg (current) | 13.0¢ | $852 | — |
| Jacksonville | 14.3¢ | $941 | +$89 |
| Miami | 14.7¢ | $964 | +$112 |
| Tampa | 14.4¢ | $949 | +$97 |
| Orlando | 13.6¢ | $895 | +$43 |
| Hialeah | 13.1¢ | $858 | +$6 |
| Port St. Lucie | 15.5¢ | $1,018 | +$166 |
| Tallahassee | 14.6¢ | $958 | +$106 |
| Cape Coral | 13.7¢ | $899 | +$47 |
Electric Tankless Water Heater Energy Cost FAQ — St. Petersburg, FL
Understanding Electric Tankless Water Heater Energy Costs in St. Petersburg, FL
St. Petersburg is a mid-sized Florida city where residential electricity rates from Florida Power & Light are shaped by regional energy supply and local demand patterns. Running a high-draw appliance like the Electric Tankless Water Heater (18,000W) at St. Petersburg's rate of 13.0¢/kWh costs approximately $852 per year — $2 less than the national average of $854.
Rates in St. Petersburg are close to the national average, so the Electric Tankless Water Heater's annual cost of $852 is broadly representative of what most US households pay. Over the 20-year expected lifespan, total energy cost reaches $17,043.
With a cost of living index of 104, St. Petersburg is near the national median. The Electric Tankless Water Heater's monthly cost of $71.01 represents a typical share of the average St. Petersburg electric bill of $155/month. Upgrading to an ENERGY STAR Electric Tankless Water Heater can cut energy use by up to 24%, saving approximately $205 per year at St. Petersburg rates.
St. Petersburg's moderate climate (avg 65.6°F) helps keep seasonal energy cost swings manageable for most appliances. A Electric Tankless Water Heater produces approximately 2.1 tons of CO2 annually at typical usage. St. Petersburg residents can reduce this footprint by choosing an ENERGY STAR certified unit, optimizing usage patterns, or investing in solar — see our solar savings calculator for St. Petersburg.
Compare All Energy Costs in St. Petersburg
See energy costs for 168+ household appliances at St. Petersburg's local electricity rate.