Solar panel cost in Siliguri: what should a quote include?

Start with the home, not a package

Gather electricity bills showing actual units consumed across different seasons. Tell the surveyor about daytime occupancy, air conditioners, pumps and planned appliances. Consumption, roof suitability and system choices affect a solar proposal.[2] For your home in Siliguri or elsewhere in West Bengal, ask the installer to explain the proposed capacity before discussing discounts. A neighbour's quotation is not a substitute for your own assessment.

Request an itemised equipment schedule

Ask for panel and inverter models, quantities, mounting details and monitoring arrangements. Have the quote identify cable work, electrical protection and earthing. If backup is requested, ask for storage and backup equipment as a separate scope. Keep equipment warranties distinct from installation workmanship and after-sales support. A brand name alone does not describe everything being supplied.

Make roof work visible

Roof condition, shape and shade matter when considering solar.[2] Ask the survey team to record usable space, access routes and any repair needs. Request separate entries for structural assessment, roof repairs, waterproofing responsibilities and unusual mounting work where applicable. Confirm who deals with an existing leak before installation. Do not accept a roof layout without space for safe access and maintenance.

Separate approval work from installation

WBSEDCL publishes rooftop solar application information for its consumers.[1] Check the distributor named on your bill and follow the process applicable to that connection. Ask who prepares submissions, follows up and coordinates metering or inspection. Have the quotation distinguish included services from charges payable separately. An installer should not describe a submitted application as an approval.

Compare the total scope

Put competing quotations side by side using the same requested capacity and equipment scope. Check taxes, transport, roof work, electrical changes, monitoring access and maintenance exclusions. Ask what could change after the survey and require approval before extra work. Keep any expected subsidy separate from the contract price; do not treat an unconfirmed benefit as money already received.

Get a usable handover commitment

Request the final layout, equipment records, warranty documents, operating instructions and support contact. Agree payment milestones against clear deliverables rather than a verbal promise. Ask how faults are reported and which party handles equipment claims. Before accepting, retain the signed scope and exclusions so that the quotation remains useful after the sales conversation ends.

Before agreeing the support scope, see how to raise an after-sales support enquiry ↗