Energy & Utilities Calculators
Free estimators for solar panels, generators, EV chargers, HVAC systems, insulation, water heaters, smart home security, and more. Know what these systems cost before you commit — and what the ROI looks like over time.
Explore related hubs:
Solar Panel Cost Calculator
Residential and commercial solar installation costs with the 30% IRA tax credit and MACRS depreciation for businesses.
EV Charger Installation Cost Calculator
Level 1, Level 2, and DC fast charger installation — panel upgrades, wire runs, permits, and charger equipment.
Generator Installation Cost Calculator
Portable, standby, and whole-home generator costs — fuel type, capacity, transfer switch, and natural gas vs. propane.
HVAC Sizing Calculator
BTU sizing, duct design, heat load calculations, and new system installation costs for central AC and furnaces.
Insulation Calculator
R-value estimator for attic, walls, and crawl spaces — batt, blown-in, spray foam, and rigid foam insulation types.
Water Heater Installation Cost Calculator
Tank, tankless, and heat pump water heaters — installation, venting, gas line, and permit costs by type and size.
Septic & Well System Calculator
Conventional and advanced septic systems, well drilling, pump installation, and repair cost estimates for rural properties.
Water Softener Cost Calculator
Whole-home softener, reverse osmosis, well water treatment, and filtration maintenance system cost estimates.
Home Security Cost Calculator
Professional monitoring, DIY smart security, camera systems, and commercial security — equipment and monthly costs.
Electrical Wiring Cost Calculator
New circuits, subpanel installation, whole-house rewiring, and smart home electrical upgrades.
Pool & Hot Tub Cost Calculator
In-ground pools, above-ground pools, hot tub installation, and pool renovation — shell, plumbing, electrical, and deck.
Energy Upgrades Pay for Themselves
Solar, insulation, and HVAC upgrades are among the few home improvements that actually pay for themselves. A properly sized solar installation eliminates your electric bill and adds value to your home. A high-efficiency HVAC system cuts energy costs by 20–40%. Use these calculators together to compare full project costs across energy systems.
The IRA's 30% solar tax credit (extended through 2032) and Section 30C EV charger credit make now the best time to invest in energy infrastructure. The generator and water heater calculators account for natural gas vs. propane trade-offs — critical for off-grid and rural properties. The insulation calculator helps you prioritize where to insulate first for maximum energy savings.
For contractors: these calculators are built for client proposals. Show itemized costs by system type, and compare options side by side. Clients who understand the math commit faster.