How many kilowatt hours of electricity does one auto component use at a Rajkot machining unit, going by the Energy and Resources Institute profile?

About 0.14 kilowatt hours (kWh) a piece on average. The Energy and Resources Institute (TERI) profile prints 30.1 million kWh for 210 million pieces a year. Micro units come out higher at 0.18, small units 0.14 and medium units 0.14. A part's own figure depends on its machine time.

The profile's own numbers

• Units and output: 80 micro units make 18 million pieces a year, 65 small make 85 million and 15 medium make 107 million. Total 160 units and 210 million pieces.
• A typical unit's electricity a year: micro 41,000 kWh, small 181,285, medium 1,003,608.
• Cluster electricity: 30.1 million kWh, which is 2,590 tonnes of oil equivalent (toe) and rupees (Rs) 216 million. Machining and crane motors take about 85%, compressors 12% and lighting 3%.

The check: typical unit times number of units

• Micro: 80 x 41,000 = 3,280,000 kWh.
• Small: 65 x 181,285 = 11,783,525 kWh.
• Medium: 15 x 1,003,608 = 15,054,120 kWh.
• Sum: 30,117,645 kWh, which matches the printed 30.1 million. The table ties.

Electricity per piece, worked out from the printed figures

• Micro: 3,280,000 / 18,000,000 = 0.18 kWh a piece.
• Small: 11,783,525 / 85,000,000 = 0.139.
• Medium: 15,054,120 / 107,000,000 = 0.141.
• All units: 30,117,645 / 210,000,000 = 0.143 kWh, or about 97 grams of carbon dioxide (CO2) at 0.675 kilograms a kWh for the 2025-26 financial year.
• Micro units use more per piece. One possible reason, my reading and not the profile's: small shops keep motors running between jobs, so each part carries more idle power.

Two cautions

• The mix is not one part. The list runs from pistons and rings to crankshafts and differential cases. A crankshaft likely takes far more machine time than a valve guide, so 0.143 is a cluster average of pieces, not a figure for any one part.
• The profile's own money figures do not match its own tariff. It quotes Rs 8.50 a kWh on a high tension connection and Rs 9.00 on low tension, both with demand charges. Its small-unit figures give Rs 7.17 a kWh and its medium-unit figures Rs 7.07, and the cluster Rs 216 million over 30.1 million kWh is Rs 7.2. Those are 15% to 20% below the quoted tariff, so treat the rupee figures as rounded. The micro unit's Rs 0.3 million is printed to one figure, too rounded to test.

If a carmaker asks for kWh per part

Give your plant kWh for the year from your bills, then split it by machine hours per part number. Motors take about 85% of the power, so hours on the machine are a fair way to share it out. Check your result against 0.14: if you are at 0.05 or at 0.6, look at the mix of parts before you worry.

Example: one small unit's year

• Plant electricity: 181,285 kWh (TERI's typical small unit). Pieces: 85,000,000 / 65 = 1,307,692 a year
• Average: 181,285 / 1,307,692 = 0.139 kWh a piece
• A part that takes three times the machine hours of the average: 0.139 x 3 = 0.42 kWh, or about 0.28 kilograms of CO2
• The machine hours split is an example; use your own logs

Unit and cluster figures are TERI's printed 2017-18 data; the per-piece figures are my division of them.

What Senseible does here

Senseible reads fuel invoices and electricity bills into monthly records, so the plant kWh behind a per-part figure comes from your own bills, month by month. The standard product does not split power between parts; machine hour meters and a custom split can be added on request.

• What carbon data carmakers ask Rajkot's auto component units for
• Splitting plant emissions by machine hours
• Allocate factory electricity to products
• Your carbon number for buyers and banks

Sources: TERI, Energy profile: Rajkot auto components cluster (SAMEEEKSHA)

Last reviewed 2026-11-07. Profile data are for 2017-18. The per-piece figures are my arithmetic on TERI's tables, not TERI's own. Use your own bills and part counts for anything you send a buyer.