Textiles/ electricity · heat · proof
Most of your heat
is below 100 °C.
One provider for green electricity, green heat and the data that proves both — from spinning floor to dye house to export container.
About ₹6.69 a unit across the year with solar and wind, against ₹8.42 from the grid.
Heat from a heat pump on that electricity, against ₹2.29 from a coal boiler.
An energy assessment on your bills and metering, then one business case for electricity and heat.
Why nowBrand supplier targets · Coal phase-out · EU product rules · Heat and electricity cost · Water and effluent · Carbon markets
Illustrative reference plant; your figures come from your own tariff, fuel and load.
Fibre to export/ where we intervene
Every bath
has a lever.
Bales arrive, yarn is spun and woven, fabric is scoured, dyed, washed and dried, finished goods leave in containers. jouleWise acts at ten points — most of them on hot water.
Green sourcing
Intrastate and ISTS solar and wind contracted through open access for a three-shift load.
ElectricityConnectivity and metering
Open access approvals, connection agreement and ABT metering at the mill incomer.
ElectricityRooftop solar
Spinning and warehouse roofs carry behind-the-meter solar, sized from measured load.
ElectricityBattery storage
LFP storage for peak shaving and to keep spinning frames and humidification steady.
ElectricityHeat pumps on dye-house water
Hot water for scouring, bleaching, dyeing and washing made by heat pumps instead of coal steam.
HeatEffluent heat recovery
Warm dye and wash effluent becomes the heat pump source — and reaches the ETP cooler.
HeatHot-water store
Store charged in solar blocks and drawn batch by batch across the day.
HeatStenter exhaust recovery
Stenters stay on thermic fluid; their exhaust heat is recovered into the hot-water circuit.
HeatergOS control
15-minute metering of electricity, steam, hot water, fuel and water — per machine where it matters.
Data · ergOSBrands and exports
Brand questionnaires, coal-exit evidence and per-kg fabric carbon from esgOS.
ESG · esgOSIllustrative plant. Actual intervention map built site by site in the baseline.
Electricity/ plan · implement · meter · orchestrate
Low-cost
green electricity.
Spinning and weaving run three shifts with humidification and compressed air; processing adds pumps, jets and dryers. The load is high day and night — heat pump load moves into solar hours with a hot-water store.
Hover the profile to read any 15-minute block
A processing house runs three shifts, so the dye-house hot water is a flat load and the heat pumps run round the clock. The store is charged in solar hours and drawn down at night, which flattens what the grid sees.
Plan
Meter-data due diligence: bills, load survey, rooftop and captive parameters. Solar, wind, hybrid, BESS and exchange electricity optimised together, capex or opex, with each state's ToD, banking and open access charges in the landed-cost model.
Implement
RfP over a 25-year horizon, developer evaluation, reverse auction, PPA and shareholder agreements (26% SPV equity for captive status), open access approvals and connection agreement.
Meter and log
ABT meters at injection and drawal points — main and check meters on CTs and PTs of the required accuracy class — plus data loggers on every incomer, heat pump, steam, fuel and water line. Installed, tested, sealed and linked to the SLDC and to ergOS.
Orchestrate
ergOS forecasts 96 blocks, schedules with the SLDC, trades DAM, GDAM, RTM and GTAM, manages banking and battery health — and now dispatches heat pumps and thermal storage against price.
Heat/ what moves, what stays
The boiler,
reinvented.
Wet processing is a hot-water business: most baths run between 40 and 98 °C, well inside heat pump range. The high-temperature exceptions — HT polyester dyeing and stenters — stay on steam or thermic fluid, with their exhaust heat recovered.
Heat sources we reuse
Warm effluent from dye and wash baths, stenter exhaust, condensate and air-compressor heat — much of a mill's heat currently goes down the drain.
Effluent as the source
Effluent at 40–60 °C is an excellent heat pump source: the small temperature lift means a high COP, and cooler effluent eases the load on the ETP.
Sized from metered heat
Portable heat meters log flow and temperature on candidate processes for two to four weeks before anything is sized.
Economics/ illustrative
Low-cost electricity
drives low-cost heat.
What one kWh of useful process heat costs, and what it emits, depending on where the heat comes from. The heat pump cuts cost on any electricity; green electricity is what cuts the carbon.
Illustrative only, not an offer. Assumptions: PNG 10.4 kWh/SCM, 1.95 kg CO₂/SCM; HSD 10.0 kWh/L, 2.68 kg CO₂/L; grid 0.716 kg CO₂/kWh (CEA baseline order of magnitude); green electricity treated as zero-emission on a market basis with green attributes retired. Heat pump COP 3.8 reflects hot water near 85 °C drawn from warm dye-house effluent; COP falls as delivery temperature rises. Tariffs, fuel prices and COP vary by site and are replaced with metered values in the baseline. Coal: ₹8,000/t, 4,000 kcal/kg (4.65 kWh/kg), 1.7 kg CO₂/kg, 75% boiler efficiency.
Roadmap/ from baseline to proof
Baseline.
Electricity. Heat.
Proof.
BaselineWeeks 1–4
Bills, load survey, fuel and steam records, portable heat metering on candidate processes, ESG data map.
RoadmapWeeks 4–8
RE-100 electricity plan, heat pump shortlist for dyeing, washing and effluent recovery, and the ESG data map — in one business case.
Meter and logWeeks 6–12
ABT metering at the incomer and data loggers on electricity, heat, fuel and water lines — the measured base every later step is sized, settled and reported on.
Electricity live~3 months after roadmap
Open access contracted and approved; rooftop solar and BESS where they fit; every source orchestrated against demand on ergOS.
Heat livePilot, then scale
One effluent-source heat pump and hot-water store on the dye house, metered on ergOS; then washing ranges, bleaching and stenter exhaust.
Operate and discloseEvery block · every year
ergOS runs electricity and heat; esgOS publishes BRSR Core-format, CBAM, CDP and customer disclosures with an audit trail.
We can fund it. You choose how. Each lever — electricity or heat — can be bought four ways, and the two levers can be bought differently.
Timelines indicative; confirmed after the baseline and dependent on state approvals and equipment lead times.
Questions/ asked most often
Before you
commit anything.
Does it replace my boiler?
What if electricity is expensive?
What does the site need?
Is it proven?
In short/ Textiles
The Textiles playbook is jouleWise's typical engineering approach for textile mills and processing houses: most of your heat is below 100 °c.
One provider for green electricity, green heat and the data that proves both — from spinning floor to dye house to export container. For a spinner, weaver or processor, decarbonisation now decides which brand programmes you stay in. Six pressures point at the same metered data. Wet processing is a hot-water business: most baths run between 40 and 98 °C, well inside heat pump range. The high-temperature exceptions — HT polyester dyeing and stenters — stay on steam or thermic fluid, with their exhaust heat recovered.
What to take away
- Heat duties and temperatures: Desizing and scouring 60–95 °C (heat pump); Peroxide bleaching 80–98 °C (heat pump); Reactive dyeing 40–80 °C (heat pump); Washing-off and soaping 60–95 °C (heat pump); Size cooking 75–90 °C (heat pump); Process water preheat 20–60 °C (heat pump); HT disperse dyeing 125–135 °C (stays on fuel); Stenters and dryers 150–200 °C (stays on fuel).
- PNG-fired boiler: ₹6.22 per kWh of useful heat, 0.221 kg CO₂/kWh-th
- Diesel (HSD) boiler: ₹10.59 per kWh of useful heat, 0.315 kg CO₂/kWh-th
- Coal-fired boiler: ₹2.29 per kWh of useful heat, 0.487 kg CO₂/kWh-th
- Heat pump on DISCOM electricity: ₹2.24 per kWh of useful heat, 0.188 kg CO₂/kWh-th
- Heat pump on green open access: ₹1.45 per kWh of useful heat, 0.000 kg CO₂/kWh-th
- Heat pump in solar blocks + store: ₹1.05 per kWh of useful heat, 0.000 kg CO₂/kWh-th
- Plant areas with a lever: Dye-house hot water, Scouring and washing, Effluent heat recovery, Drying and stenter, Spinning-floor HVAC.
What it assumes
- Illustrative only, not an offer. Assumptions: PNG 10.4 kWh/SCM, 1.95 kg CO₂/SCM; HSD 10.0 kWh/L, 2.68 kg CO₂/L; grid 0.716 kg CO₂/kWh (CEA baseline order of magnitude); green electricity treated as zero-emission on a market basis with green attributes retired. Heat pump COP 3.8 reflects hot water near 85 °C drawn from warm dye-house effluent; COP falls as delivery temperature rises. Tariffs, fuel prices and COP vary by site and are replaced with metered values in the baseline. Coal: ₹8,000/t, 4,000 kcal/kg (4.65 kWh/kg), 1.7 kg CO₂/kg, 75% boiler efficiency.
- Timelines indicative; confirmed after the baseline and dependent on state approvals and equipment lead times.
Start/ Textiles
Tell us the plant.
We'll map the stack.
Send one year of electricity bills and fuel records. We return the baseline, the electricity-and-heat roadmap and the business case.
This presentation is issued for discussion purposes only. Prices, durations, heat pump performance and outcomes shown are indicative, depend on site, state, load profile, process temperatures, contracted terms, exchange prices and the regulatory orders in force, and do not constitute an offer, warranty or commitment by jouleWise. Screens and plant illustrations are illustrative. Client names are cited from jouleWise assignments. Any engagement is governed solely by definitive agreements between the parties.