A new electricity connection for a factory is a design and documentation decision, not just an online form. The owner must estimate load, choose the right supply discussion, prepare documents and plan for expansion before production pressure begins.
The best connection application starts with the real plant layout and machinery plan. If the load estimate is casual, the bill and reliability problems start later.
How should load be estimated before applying?
Start with an equipment list. Include production machines, compressors, pumps, cooling, lighting, office load, material handling, chargers, HVAC, pollution control equipment and any process heating.
For each load, note:
- connected rating
- likely operating pattern
- starting requirement
- whether it runs continuously or in batches
- whether future machines are planned
- whether it affects demand peaks
Connected load is not the same as maximum demand. All equipment may not run together, but some combinations can create high peaks. A compressor start during production heating may matter more than a small office load.
Read sanctioned load vs connected load before filling numbers blindly.
What are the HT versus LT questions?
HT and LT decisions depend on state rules, DISCOM feasibility, load level, metering, transformer arrangement, protection system and operational responsibility. Do not decide only by what a neighbour has.
Ask these questions:
- What supply voltage is available near the site?
- Does the planned load require three phase?
- Who owns or maintains the transformer?
- Where will the meter be installed?
- Will demand billing apply?
- What expansion is likely?
- What safety and statutory approvals are needed?
For a simple commercial shop, LT may be straightforward. For a factory with large motors, compressors or process loads, HT may enter the discussion depending on utility rules.
For the billing side, read HT vs LT billing for businesses. For phase basics, read single phase vs three phase factory load.
Which documents are usually prepared?
Document requirements vary by state, DISCOM and consumer type. Still, most factory applications need a clean identity, premises and technical file.
Prepare:
- ownership, lease or possession proof
- company, proprietor or partnership documents
- authorised signatory proof
- site address proof
- load details
- electrical contractor documents if required
- wiring or safety test reports if required
- layout or meter location information
- payment and deposit records
Keep the consumer number and application number visible on every saved file after submission. Future follow-up becomes easier.
Why do transformer and metering issues matter?
Transformer and metering decisions affect cost, responsibility, space and future maintenance. In some cases the consumer may need to arrange transformer capacity, metering panel space, protection equipment or cable route readiness.
These choices also affect safety. A factory should not treat the electrical room as leftover civil space. Keep access, ventilation, fire safety, earthing, cable routing and maintenance movement in mind.
Metering position matters for energy accounting. If the meter is on one side of a transformer, transformer losses may or may not appear in the consumer bill depending on the arrangement and rules.
Clarify this before commissioning, not after the first high bill.
Tips from the field
- Build the load list from the actual machine purchase plan, because civil drawings often miss compressors, pumps and utility loads.
- Add future expansion notes to the internal file even if the first application is smaller.
- Ask the DISCOM or licensed electrical consultant about HT and LT feasibility before ordering major electrical panels.
- Keep the meter room, transformer space and cable route accessible for inspection and maintenance.
- Save application acknowledgements, payment receipts and inspection notes in one folder from day one.
- Check the first bill carefully for name, category, load, meter and deposit details before the record becomes old history.
How should owners think about deposits and timelines?
New connections commonly involve application fees, deposits, inspections and service work. The exact amounts and timelines depend on current rules and utility process.
Do not plan factory commissioning on verbal promises alone. Track milestones:
- application submitted
- documents accepted
- demand note or payment request issued
- payment completed
- inspection done
- meter installed
- supply released
- first bill checked
If the process gets stuck, a clear paper trail helps more than repeated phone calls.
What should be checked after supply starts?
The first bill is the first test of the connection record. Check it line by line.
Confirm:
- consumer name and address
- tariff category
- sanctioned load or contract demand
- phase or supply type
- meter number
- reading and multiplying factor
- deposit entry
- first billing period
If the business later changes ownership, load or category, use name change and load extension process instead of letting the record drift.
A new connection done well gives the plant room to operate. A rushed connection creates avoidable billing, safety and expansion problems for years.
The final discipline is to review the first few bills, not only the first bill. Initial billing periods can be short, commissioning loads can be unusual, and production may ramp up slowly. Mark those months clearly so nobody treats them as normal operating baselines.
Once regular production starts, compare the bill with the original load estimate. If actual demand is already close to the approved limit, plan the next electrical step early. Waiting for a crisis makes every DISCOM process feel slower.