Interactive Calculator · 2026
STP Electricity Consumption Calculator
Estimate the power a sewage treatment plant draws and what it costs to run. Enter the plant capacity, its specific energy and your electricity tariff — get daily energy plus the monthly and annual bill.
Electricity used per day → per month → per year
Your plant
Design flow in kilolitres per day (1 KLD = 1 m³/day).
Commercial power tariffs in India run ≈Rs 7–10 per unit.
Energy used to treat each cubic metre. SBR/MBBR plants ≈0.6–0.9; MBR and small STPs run higher.
Energy consumption over time
A 200 KLD plant at 0.8 kWh/m³ draws about 160 units a day — here is how that scales up.
Electricity is the single largest running cost of an STP — pumps, blowers and the aeration system run around the clock. Cutting specific energy even slightly compounds fast at the annual scale.
Unit cost of treatment ≈ Rs 6.4 per m³ treated at the current tariff.
How this is calculated
- Energy per day = capacity × specific energy = 200 × 0.8 = 160 kWh/day.
- Cost per month = energy/day × 30 × tariff = 160 × 30 × Rs 8 = Rs 38,400.
- Cost per year = energy/day × 365 × tariff = 160 × 365 × Rs 8 = Rs 4,67,200.
Indicative energy budgeting for concept planning. Actual draw varies with technology, load factor, standby equipment and power factor — confirm with a qualified consultant before procurement.
Related Guides — Deep-dive reading
STP Electricity Cost Analysis: What Powering a Sewage Treatment Plant Really Costs in India
Electricity is the single largest running cost of an STP — and aeration eats most of it. Here is what your plant's specific energy use (kWh/m³) really is, what the monthly bill looks like by capacity, and how to keep it in check, with honest India ranges for 2025–26.
Sewage Treatment PlantsReducing an STP's Carbon Footprint: The Net-Emissions Guide
An STP burns power around the clock — but the treated water it produces displaces tankered and pumped freshwater. This guide shows how to weigh the two, then shrink the net carbon footprint with efficient aeration, solar and biogas.
Sewage Treatment PlantsSTP Chemical Cost Analysis: Chlorine, Coagulants, Antiscalants & pH Correction (India 2026)
What the chemicals in a sewage treatment plant actually cost each month in India — chlorine, coagulants, polyelectrolyte, antiscalant and pH correction — with realistic dose rates, rupee ranges by capacity, and the practical levers that keep the bill down.
Sewage Treatment PlantsRelated Tools — You may also find these useful
STP Annual Operating Cost Calculator
Total up a sewage treatment plant's yearly running cost from monthly electricity, chemical, manpower and annual AMC spend, with the monthly total and biggest cost driver.
STP CalculatorSTP Energy Benchmark Calculator
Benchmark your sewage treatment plant's specific energy use (kWh/m3) against good, typical and high ranges, with an efficiency rating and annual energy cost from daily power, treated flow and tariff.
STP CalculatorSTP Performance Dashboard
Turn a running sewage treatment plant's daily readings into live BOD removal efficiency, specific energy, organic load and a compliance status.
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