c&i solar marketing – BananaBlocks

Selling a 5 kW rooftop system to a homeowner and selling a 500 kW plant to a factory are very different jobs. The commercial buyer has more people involved, more questions, more paperwork and a much longer decision process. They also look at your website in a very different way.

A plant head or CFO isn’t looking for a cheerful “Save on your bill!” banner. They want to know whether you’ve done projects their size, how you handle design and approvals, what the financial case looks like and whether your company will still be around to honour the warranty. If your website is built for homeowners, commercial buyers often move on.

This guide covers how a commercial and industrial (C&I) solar EPC company, or an installer moving into C&I, should structure its website.

In this post:

How commercial buyers decide
Separate commercial from residential
The pages a C&I solar website needs
Explaining the financial case
Proof that matters to commercial buyers
Housing societies: a special case
Enquiry forms and proposals
Getting found by commercial buyers
Key takeaways

How commercial buyers decide

A typical commercial solar decision involves several people:

The owner or managing director, who cares about savings, payback and risk
The finance team, who look at capex versus other models, cash flow and tax treatment
The plant or facility manager, who worries about roof condition, safety, downtime during installation and maintenance
Sometimes a consultant who compares technical proposals

Your website needs something for each of them, and a way for the first person who finds you to share it with the rest.

Separate commercial from residential

If you serve both homes and businesses, split them clearly from the homepage: “For homes” and “For businesses”. Commercial visitors should land on pages with commercial language, commercial projects and a commercial enquiry form. Mixing the two makes you look like a small residential installer to a factory, and too big and complicated to a homeowner.

For the residential side, our solar installer website design guide covers what homeowners need.

The pages a C&I solar website needs

Page	What it should cover
Commercial solar overview	Who you serve, project size range, your end-to-end process, key projects and a proposal request button
Industries	Separate sections or pages for manufacturing, warehouses, offices, schools and colleges, hospitals, hotels and cold storage, with relevant projects
Business models	Capex (outright purchase), and any other models you offer, such as opex or PPA, explained simply with who each suits
Process	Energy audit, load analysis, design, approvals, procurement, installation, net or gross metering, commissioning, monitoring and O&M
Projects and case studies	System size, industry, location, generation, savings and timeline, from real data
Engineering and quality	Design standards, structural assessment, components, safety practices and quality checks
O&M and monitoring	Maintenance plans, cleaning, performance monitoring, response times and reporting
About and credentials	Company history, team and engineers, certifications, empanelment, financial stability

Explaining the financial case

Commercial buyers decide on numbers. Help them get there:

Explain the models. Capex means the business owns the plant and gets the full savings. Opex or PPA models (where you offer them) mean little or no upfront cost, with the business paying for the power generated. Keep the explanation short and neutral.
Show what drives the return. The business’s tariff, its daytime consumption, available roof area, and how the state treats net or gross metering for commercial users.
Mention tax treatment carefully. Eligible businesses may be able to claim accelerated depreciation on solar assets. Suggest they confirm with their tax adviser rather than presenting it as guaranteed.
Offer a commercial estimate tool. A simpler version of a solar savings calculator, based on monthly units or bill amount and roof area, which then invites a detailed feasibility study.
Make the next step a proposal, not a site survey: “Request a free feasibility report”.

Avoid headline payback claims that aren’t backed by your own project data.

Proof that matters to commercial buyers

Detailed case studies with industry, system size, generation, savings over a real period and how you managed installation without disrupting operations. Our guide to building a solar project portfolio explains how to document them
Client logos, only with permission
Testimonials from named decision makers, such as a plant head or facility manager, with their role
Engineering credentials, such as your engineering team, design tools and quality processes
Safety record and practices, which matter a lot to factories
Monitoring dashboards, showing the kind of reporting the client will receive
Company stability, such as years in business, office locations and team size

Housing societies: a special case

Housing societies sit between residential and commercial. The decision is usually made by the managing committee and approved at a general body meeting, so the buyer is a group, not a person.

Give societies their own page that covers:

What solar can power: common area lighting, lifts, water pumps, EV charging
The central subsidy for societies, with current figures and a link to your subsidy page
How the process works with the committee, including a presentation you can give at a meeting
A downloadable proposal summary the secretary can share on the residents’ WhatsApp group
Society projects you’ve completed, with quotes from committee members

Enquiry forms and proposals

The commercial enquiry form can ask a little more than the residential one, because these buyers expect it:

Company name, contact name, role, phone and email
Location of the site
Type of facility
Approximate monthly electricity bill or units
Approximate roof area, if known
Preferred model (capex, opex, not sure)
Upload: latest electricity bill (optional)

Respond with a clear next step: a call to understand the requirement, then a site visit and a feasibility report. Offer a downloadable company profile and capability brochure on the page so the first contact can share it internally.

Getting found by commercial buyers

Build pages around commercial searches, such as “commercial solar installation in Pune”, “industrial rooftop solar”, “solar EPC company in Gujarat”
Create industry pages for the sectors you serve most
Publish practical content for decision makers, such as guides to choosing an EPC partner, comparing capex and opex, or planning installation around production
Keep your LinkedIn company page active, sharing projects and team updates, since many commercial buyers check it
Make sure your Google Business Profile lists commercial solar as a service

For the local search side, see our local SEO guide for solar installers.

Key takeaways

Commercial solar buyers are groups of people with different concerns
Separate commercial and residential journeys from the homepage
Build pages for industries, business models, process, engineering and O&M
Explain the financial case with clear, honest numbers from real projects
Back it up with detailed case studies, named testimonials and safety credentials
Give housing societies their own page, built for committee decisions
Ask for a feasibility study request, not just a survey, and make it easy to share internally

Building a commercial solar website?

BananaBlocks Solutions builds websites for solar EPC companies and installers with separate residential and commercial journeys, industry pages, case studies and proposal request forms. Book a free call to talk about your projects and the buyers you want to reach, or explore our solar website development service.

Commercial Solar EPC Website: How to Win Factory, Office and Society Projects Online