WEBIN · India

SolarSathi

B2B solar vendor discovery and procurement marketplace for the Indian market.

Live marketplace
Multi-vendor
India solar market

Overview

SolarSathi was built to solve a fragmented procurement problem in the Indian solar energy sector. Buyers needed a single platform to discover verified vendors, request quotes, and compare offerings — all in one place.

The platform handles multi-vendor listings, quote request workflows, and vendor profile management. It serves both B2B buyers and solar equipment suppliers across India, with AWS-hosted infrastructure for scale.

What Was Built

  • Multi-vendor product listing and search
  • Quote request workflow (buyer to vendor)
  • Vendor profile and verification pages
  • Admin panel for listing management
  • PostgreSQL database with optimized search queries
  • AWS EC2 + RDS deployment pipeline

The Challenge

Building a procurement workflow that handles asynchronous quote requests between buyers and multiple vendors, with email notifications and status tracking — without overcomplicating the MVP.

The Solution

A simple state machine (requested → reviewed → quoted → accepted) drives the quote workflow. Each state transition triggers an email notification. The first version shipped with this lean flow before adding real-time features.

Have a similar project?

Tell us what you need. We'll come back with a scoped plan tailored to your requirements.

Start a Project