Solar installer blog

Articles for solar installers in India on quotations, subsidies, system design, running an installation business and tax. Each one opens with a direct answer, shows its sources and a visible last-updated date, and marks anything not yet verified.

• What a 3 kW solar quote must list

  Updated 10 Oct 2026

  What a three kilowatt rooftop solar quotation should list: components, quality points, scope and exclusions, so customers can compare offers fairly.

• How to build a solar price book

  Updated 10 Oct 2026

  A practical guide to building and maintaining a solar price book: which items to list, how to organise them and how to keep prices current across your quotes.

• How to write a solar quotation

  Updated 10 Oct 2026

  A step-by-step guide for installers: what a solar quotation must contain, how to state scope, pricing, tax, subsidy and terms so customers can say yes.

• Solar battery sizing for a quotation

  Updated 10 Oct 2026

  How to size a battery for an off-grid or hybrid solar quotation: load, backup hours, depth of discharge, voltage and inverter matching, in plain steps.

• Solar quote checklist before sending

  Updated 10 Oct 2026

  A practical checklist to run through before sending any solar quotation: customer details, scope, money lines, tax, subsidy, terms and final proofreading.

• Solar quotation vs proforma invoice

  Updated 10 Oct 2026

  Understand how a solar quotation, a proforma invoice and a tax invoice differ, when to issue each one, and how tax should be treated on each document.

• WhatsApp follow-up for solar quotes

  Updated 10 Oct 2026

  A simple, respectful follow-up rhythm for solar quotations sent on WhatsApp: when to message, what to say and how to keep each customer's history in one place.