How you buy it/ for the person signing
We can fund it.
You choose how.
Capex, ESCO shared savings, Heat-as-a-Service or Electricity-as-a-Service — for electricity, heat or both. One partner designs, finances, builds and operates it, and stands behind the savings. Nothing here is a price: terms are set per plant after a four-week energy assessment.
The models/ four ways to pay
Own it, share the savings,
or buy by the unit.
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.
You own the assets
We design, supply and build; you own the equipment.
- You pay
- You invest and keep 100% of the savings.
- Best for
- Plants with budget and a payback target.
Shared savings
We invest and are paid from the measured savings.
- You pay
- Little or no upfront cost.
- Best for
- Plants that want savings without capex.
Buy heat, not boilers
We build, own and run heat pumps and storage on green electricity.
- You pay
- Per unit of heat, at or below your fuel cost — or a fixed monthly fee, like a lease.
- Best for
- Plants that want green heat off balance sheet.
Buy green electricity by the unit
Solar, wind and storage through long-term electricity agreements.
- You pay
- Per unit of electricity, below grid tariff.
- Best for
- Plants with steady daytime load.
Commercial terms are set per plant after the energy assessment. Availability of each structure depends on the state, the site and the size of the opportunity.
Delivery/ we don’t just recommend
Design. Finance.
Build. Operate.
Most companies stop at a report. We take responsibility for the whole journey — for electricity, heat or both.
Design
Measure your electricity and heat use; size the right mix of solar, storage, heat pumps and recovery.
Finance
Choose Capex, ESCO, Heat-as-a-Service or Electricity-as-a-Service; arrange agreements and approvals.
Implement
Contract, install and commission equipment, metering and grid connections — with minimal disruption.
Operate
Run the system every 15 minutes on ergOS; report savings and carbon for the life of the assets.
First/ the baseline
The four-week
baseline.
One site, four weeks, one business case. It is how every engagement starts, and it is the cheapest way to find out whether we are worth hiring.
Twelve months of electricity bills, tariff category and contract demand, a load survey, and fuel and steam records.
Portable heat metering on the loops that matter, so the thermal baseline is measured rather than assumed. Meter data analysed at fifteen-minute resolution.
One business case covering electricity, heat and disclosure: what to build, in which order, capex or opex, with the duties that should stay on fuel named explicitly.
- RE-100 roadmap with size, location and savings
- Landed cost per kWh under your state's open access charges
- Heat duties ranked by heat-pump suitability
- NPV and return for capex and opex structures
- The metered baseline every later claim is measured against
Then/ the timeline
Baseline to
green electricity flowing.
Baseline
4 weeksBills, load survey, portable heat metering, one business case.
Contract green electricity
~3 monthsRfP over a 25-year horizon, developer evaluation, reverse auction, PPA and shareholder agreements, open access approvals and connection agreement.
Meter and connect
with the contractABT meters at injection and drawal, data loggers on every incomer, heat pump, steam, fuel and water line. Enrolment on the power exchange.
Operate
life of the assetsergOS schedules with the SLDC, trades the day-ahead, green and real-time markets, manages banking and battery health, and dispatches heat pumps against price.
Indicative, and confirmed after the baseline. Open access timing depends on the state’s approvals and on equipment lead times; heat is piloted on one loop before it is scaled.
Structures/ in detail
Who owns what,
and who stands behind it.
You own the assets. We design, supply and build rooftop solar, storage and heat pumps on your balance sheet; open access capacity through a captive structure where the numbers favour it. You keep 100% of the savings.
We invest and are paid from the measured savings, so there is little or no upfront cost. The savings are metered on ergOS against the baseline, which is what both sides settle on.
We build, own and run heat pumps and thermal storage on green electricity. You pay per unit of heat, at or below your current fuel cost, or a fixed monthly fee like a lease.
Solar, wind and storage through long-term electricity agreements. You pay per unit of electricity, below grid tariff.
For open access, a special-purpose vehicle builds and operates the plant and you hold at least 26% of its equity, which qualifies the supply as captive and changes the charges you pay.
Design, finance, implementation and operation sit under one contract. Equipment comes from manufacturers selected for each project; the responsibility for the result stays with us — we stand behind the savings.
In short/ How you buy it
jouleWise can fund the electricity and heat systems it builds: a plant chooses capex, ESCO shared savings, Heat-as-a-Service or Electricity-as-a-Service, under one contract from design to operation.
Capex: you own the assets and keep 100% of the savings. ESCO: jouleWise invests and is paid from the measured savings, with little or no upfront cost. Heat-as-a-Service: jouleWise builds, owns and runs heat pumps and storage on green electricity, and you pay per unit of heat at or below your fuel cost, or a fixed monthly fee. Electricity-as-a-Service: solar, wind and storage through long-term electricity agreements, paid per unit below grid tariff. Every engagement starts with a four-week energy assessment, followed by a proposal in weeks four to eight and implementation from about three months. jouleWise designs, finances, implements and operates, and stands behind the savings.
Questions this page answers
Can jouleWise fund the project?
What is Heat-as-a-Service?
How are ESCO savings measured?
Start/ one plant
Start with
one plant.
Share twelve months of electricity and fuel bills for one plant. We’ll show what you can save on electricity, on heat, or both — in rupees and in tonnes of CO₂ — and how each could be funded.