What Happens During a Commercial Solar Site Assessment?

Confirm what the visit will cover

Knowing the purpose of the visit helps you understand how much confidence to place in the resulting quote. An initial screening may identify whether the project is worth exploring, while a detailed visit resolves questions needed for design. Agreeing that purpose beforehand also clarifies which records and staff need to be available.

Share recent bills, operating hours and any relevant existing electrical records in advance. Nominate a facilities contact and involve operations where the production schedule affects access or electricity use.

Send available bills and drawings before the visit. The team can then use its time on site to check unresolved questions. Ask it to record any item that could not be checked and explain whether another visit or document is needed.

Electricity use is checked against the operation

Electricity records gain meaning when the assessor can relate them to production. A quiet daytime reading might reflect a normal break, a temporary shutdown or equipment that only runs in batches, with different implications for solar sizing. Explaining normal weekdays, quieter days and shutdowns helps the team distinguish those situations. The commercial solar sizing guide explains how to compare capacity options using those records.

Discuss which loads continue outside production hours and which are flexible. Explain planned expansion or efficiency changes. The proposed system should not be based only on the busiest historic month.

Ask which assumptions will be used in the next proposal. If the provider has to estimate a daytime profile, the limitation should be stated. The customer can then decide whether better measurement is needed before final approval.

The team reviews the proposed installation areas

The visit tests whether the areas suggested in an early layout contribute the output assumed in the forecast. Sun exposure, shade and obstructions can affect when and how much electricity each area generates. This connects the physical assessment to the recommended capacity and expected savings rather than treating it as a check of available space alone. The factory solar installation process sets out the project stages from scope confirmation to handover.

The customer can explain access restrictions and future site changes that might not be visible from imagery. Planned extensions, equipment moves or neighbouring development can affect the recommendation.

Ask the assessor to identify the areas included in the proposed layout and any checks still outstanding. You should know which parts of the design can be confirmed after this visit and which need further review before the price and scope are finalised.

Electrical arrangements shape the scope

The existing electricity arrangement influences how the proposed system can connect and what work is included in the price. Reviewing the supply, connection details and available records helps identify requirements an estimate from bills alone may miss. Any inspection or measurement needs to be handled by qualified personnel through the agreed site process.

Ask where the proposed system connects, what associated electrical work is included and whether further information or study is needed. Factory staff should not be asked to access restricted equipment merely to speed up an enquiry. Use the factory solar proposal checklist to check that the offer states these responsibilities.

If the site findings differ from the assumptions used in the first quote, ask for a revised scope and cost. Check how the change affects expected generation and savings before approving it.

Equipment placement is discussed with the customer

Equipment locations can affect day-to-day operation as well as installation. Inverters and associated equipment need suitable environmental conditions, connectivity where required and access for servicing, while the factory may need nearby areas for production or future machinery. Discussing placement during the assessment allows those requirements to be considered together.

The factory can explain heat-sensitive zones, hygiene requirements, traffic routes and areas reserved for future equipment. Early coordination may prevent a proposed location from conflicting with everyday work.

Ask which equipment needs network connectivity, who provides it and how monitoring will be accessed. Do not assume a particular residential app is used for the commercial system. The project should identify the actual platform and account responsibilities.

Access and production constraints are recorded

A site can be technically workable while still needing careful implementation planning. Deliveries, security checks, permits, vehicle movement and restricted hours can affect the sequence and cost.

Discuss planned electrical work windows with the authorised facilities team. Production managers should identify periods when interruption would be particularly costly or difficult.

Ask the assessor to record access and production restrictions in the site report. The project planner needs these details when scheduling deliveries and work, rather than relying on a conversation that took place during the visit.

The provider identifies approvals and next actions

Programme eligibility and technical requirements depend on the account, connection, project size and intended operating route. The provider should explain which applications or assessments appear relevant and which conclusions remain subject to authority review.

Ask who prepares submissions, who supplies company documents and who follows up. Avoid treating a preliminary assessment as approval to operate.

If another survey, measurement or technical review is needed, ask what question it will answer, what it costs and whether it could change the proposed capacity. Confirm who arranges it and when the results are expected.

What should come out of the assessment?

The value of the visit is the change from a preliminary idea to a proposal supported by site findings. The resulting capacity, equipment, generation estimate and included work should reflect what the assessor established. Outstanding checks should remain explicit so you can see what may still affect price or design before approval. A commercial and industrial solar assessment can use your factory’s records to develop a project-specific proposal.

Verdant Solar’s commercial proposal includes authority management and project management as separate scope items. This structure helps the customer see who coordinates each part of the project.

Ask for any change from the initial estimate to be explained. A smaller capacity, different equipment location or revised scope should update the cost and projected benefit as appropriate, not simply appear in a later drawing without discussion.

Review the findings with finance, operations and facilities

The findings may answer one department’s questions while creating a decision for another. Facilities can review the proposed arrangement, operations can confirm work restrictions and finance can consider the revised costs. Bringing them into the same follow-up reduces the chance that a quote is approved before an important site condition has been understood.

Use the follow-up meeting to confirm the proposed system, cost, outstanding checks and decisions required from your team. Assign each remaining action to a person and date so everyone knows what must happen before the proposal can be approved.

Distinguish a finding from an assumption

Not every figure in an assessment has the same level of certainty. Existing meter readings support current demand, whereas a planned second shift is still a forecast until the business confirms it. Distinguishing measured records, customer information and estimates lets management concentrate on the unresolved figures that could change the investment.

Resolve estimates that could change capacity or cost first. For example, confirm whether a planned second shift is approved before relying on its electricity use in the forecast. Ask the provider to update the recommendation after receiving that information, and keep the revised figures with the assessment report.