# How much of a CNC machine's saving in a BEE report is electricity?

Canonical: https://senseible.earth/answers/cnc-machine-saving-how-much-is-electricity

Little. In three Bureau of Energy Efficiency (BEE) reports for Bangalore machine tool units, electricity is about 4% of the saving for a five-axis computer numerical control (CNC) machine, 6% for a CNC laser cutter and 14% for a CNC bending machine. Scrap, labour and utility costs make up the rest.

## How each report splits its saving per tonne

- Five-axis computer numerical control (CNC) machine: Rs 38,087.50 a tonne saved. Electricity Rs 1,630 (7,665 down to 6,035), rejected material Rs 24,580 (57,083 down to 32,503), labour and utility Rs 11,877.50 (27,671 down to 15,793.50).
- CNC laser cutter: Rs 43,655 a tonne saved. Electricity Rs 2,655 (22,380 down to 19,725) and material Rs 1,25,000 (5,00,000 down to 3,75,000), less Rs 84,000 more in labour and utility (2,50,000 up to 3,34,000).
- CNC bending machine: about Rs 11,415 a tonne saved. Electricity Rs 1,558 (4,875 down to 3,316.65), rejected material Rs 5,385 (13,500 down to 8,115), labour and utility Rs 4,471 (10,000 down to 5,528.60).

## Why it matters for a loan or a carbon claim

A lender who reads "energy saving project" will find that most of the rupee saving is scrap and labour. Only the electricity part cuts your own Scope 2 emissions, and it shows up as kilowatt hours (kWh) on your bills. Quote the kWh from your bills, not the rupee total.

One slip to watch in the laser report: its table labels the material line as rupees a year, yet adds it into a per tonne total. Ask the supplier for the working before you rely on it.

## A fourth report, a different cost

The wire cut report reaches the same Rs 26.07 lakh benefit as the bending report, from different parts, at a cost of Rs 61.00 lakh against 36.35: payback 2.34 years against 1.39, and 78,061 kWh against the bending machine's 71,178 implied. That suggests these are planning estimates for a typical unit, not measurements of your machine. A lender will want your own meter readings and scrap records.

## Electricity share of the saving per tonne

- Five-axis: 1,630 / 38,087.50 = 4.3%
- Laser: 2,655 / 43,655 = 6.1%
- Bending: 1,558.35 / 11,414.75 = 13.7%

Figures from the three Bureau of Energy Efficiency (BEE) reports, which use about 2010 prices and an electricity cost of Rs 5 a kWh.

## What Senseible does here

Senseible reads electricity bills into monthly kilowatt hours (kWh) and carbon dioxide equivalent (CO2e) at the Central Electricity Authority (CEA) factor for the bill's financial year. A bill shows the site's electricity, not one machine's, so a new machine appears as a change in the site total. Scrap and labour savings stay in your accounts. The green loan check shows what a lender asks for.

- [Green loan readiness check](https://senseible.earth/green-loan-check)
- [Machine tool units: where the power saving is](https://senseible.earth/answers/bangalore-machine-tool-units-grid-power-saving)
- [CNC turret punch: kWh saved](https://senseible.earth/answers/bangalore-sheet-metal-cnc-turret-punch-kwh)
- [CNC lathes replacing conventional lathes](https://senseible.earth/answers/cnc-lathe-replacing-conventional-lathes-kwh)
- [What 1.75 times output does to a CNC saving](https://senseible.earth/answers/cnc-machine-payback-if-output-does-not-rise)

Sources: [BEE, Detailed project report: installation of a 5-axis CNC machine, Bangalore machine tool cluster (SAMEEEKSHA)](https://sameeeksha.org/pdf/dpr/Bangalore_machine_tools_cluster/Installation_of_5_axis_CNC_machine_BNG_MTC.pdf), [BEE, Detailed project report: CNC laser cutting machine, Bangalore machine tool cluster (SAMEEEKSHA)](https://sameeeksha.org/pdf/dpr/Bangalore_machine_tools_cluster/Conventional_cutting_machine_with_CNC_laser_cutting_machine_BNG_MTC.pdf), [BEE, Detailed project report: CNC bending machine, Bangalore machine tool cluster (SAMEEEKSHA)](https://sameeeksha.org/pdf/dpr/Bangalore_machine_tools_cluster/Conventional_bending_machine_to_CNC_bending_machine_BNG_MTC.pdf), [BEE, Detailed project report: CNC wire cut machine, Bangalore machine tool cluster (SAMEEEKSHA)](https://sameeeksha.org/pdf/dpr/Bangalore_machine_tools_cluster/Replacement_of_conventional_wire_cut_machine_with_CNC_wire_cut_machine_BNG_MTC.pdf)

Last reviewed 2026-11-04. Report figures are from a Bureau of Energy Efficiency (BEE) Small and Medium Enterprises (SME) programme project report; costs and paybacks are at the report year's prices. Check today's prices and a current quote before you rely on the payback.