The short answer
Commercial solar leads come mainly from outbound prospecting against a built target list, not from inbound forms. Build the list from roof area, energy spend and ownership, reach the finance decision maker rather than the facilities manager, and expect a sales cycle of six to eighteen months with a committee involved.
- 01Search volume for commercial solar is a fraction of residential. Inbound alone will not fill a pipeline.
- 02Target on three facts: large roof or land, high energy spend, and they own the building.
- 03The person who cares is in finance. The person who answers is in facilities.
- 04Build for a cycle measured in quarters, and resource follow-up accordingly.
Residential and commercial solar are sold to different people, on different timescales, through different channels, by different skill sets. Companies that try to run commercial through their residential lead machine conclude that commercial does not work. What does not work is the machine.
Why does inbound not fill a commercial pipeline?
Nobody in a facilities role wakes up and searches for commercial solar installers. The purchase starts with a budget conversation, an energy audit, a lease renewal or a sustainability commitment, and none of those produce a search. The few who do search are valuable and rare, which means inbound is a supplement, not a strategy.
- Keep a strong commercial page so the rare searcher finds you and so your proposals have somewhere credible to point.
- Do not judge your commercial programme on form fills. Judge it on qualified conversations started.
- Expect the majority of pipeline to come from outbound, partnerships and existing relationships.
Building the target list
Commercial targeting is a filtering exercise before it is a selling exercise. Three facts decide whether a building is worth approaching at all.
- 01
Roof area or land
Satellite imagery gives you usable area at zero cost. Warehouses, distribution, cold storage, manufacturing, agriculture, schools and car parks are where the area is. Filter for it before anything else.
- 02
Energy spend
Solar only matters where the bill is large. Use industry benchmarks by square footage and type, then confirm during the conversation. Cold storage and manufacturing punch far above their floor area.
- 03
Ownership
An owner-occupier can decide. A tenant on a short lease cannot, and a landlord with no exposure to the bill has no reason to. Check ownership before investing any time.
Who are you actually selling to?
| Role | What they care about | How they behave |
|---|---|---|
| CFO or owner | Payback, tax treatment, cash impact | Decides, rarely takes the first call |
| Facilities manager | Disruption, roof warranty, maintenance | Answers the phone, cannot approve |
| Sustainability lead | Reporting, commitments, procurement | Champions internally, no budget |
| Operations | Downtime during installation | Can veto on practical grounds |
The common mistake is selling the whole project to the facilities manager, who cannot approve it and will not present it. Give them what they need to circulate, and get to finance on the economics.
The proposal that gets circulated
A commercial proposal is not read by the person you sent it to. It is forwarded. So it has to survive being read by a finance director who was not on any of the calls.
- 01One page at the front with system size, capital cost, annual saving, payback and any incentive treatment. Everything else is an appendix.
- 02Cash flow by year, not just payback in years. Finance people think in cash flow.
- 03The roof and structural position stated plainly, including whether a roof replacement is implicated.
- 04Installation disruption and timeline, because operations will ask.
- 05A named reference of similar building type and size. Not a logo wall, a contact.
Which channels actually produce?
- Direct outbound to the built list, by phone and email, with a specific observation about their building rather than a generic pitch.
- Energy consultants and brokers who already hold the billing relationship and are asked about solar constantly.
- Commercial roofers and general contractors working on the buildings you want.
- Existing residential customers who own businesses. The single most overlooked source in the industry, and it is sitting in your own database.
- Local business associations and chambers, where the same forty owners see each other monthly.
Resourcing a cycle measured in quarters
A six to eighteen month cycle breaks any follow-up system built for residential. Conversations go quiet for a quarter because a budget cycle has not opened yet, and the company that reappears at the right moment wins work that was effectively decided months earlier.
That is a systems problem, not a discipline problem. Long-horizon sequences, scheduled check-ins tied to budget cycles, and a pipeline view that does not treat a quiet quarter as a dead deal. See solar sales pipeline stages.
Qualification matters more here than in residential, because the cost of a wasted commercial pursuit is measured in weeks of somebody's time rather than one wasted survey. The same six-question discipline applies, adapted: ownership, roof, spend, timeline, decision makers and budget cycle. See how to qualify solar leads.
The long-horizon follow-up commercial needs
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Common questions
- How long is the commercial solar sales cycle?
- Commonly six to eighteen months from first contact to signature, longer where a board, a landlord or a grant application is involved. Plan cash flow and follow-up around quarters rather than weeks.
- Can I buy commercial solar leads?
- You can, and the quality is usually poor. Volume is thin, exclusivity is rare and the definition of a lead stretches further than it does in residential. Building your own target list is slower and far more reliable.
- What size commercial roof is worth quoting?
- Set the floor from your own economics, but as a starting point, look for buildings where usable roof area supports at least a 50kW system and the occupier owns the building. Below that, the cost to sell rarely justifies the margin.
