Solar Bid Proposal Template
Download a solar bid proposal template to present project scope, pricing, equipment, exclusions, alternates, schedule, payment terms, and customer approval.
Present Solar Project Scope and Pricing Clearly
A solar bid proposal turns estimating information into a document the customer, general contractor, or project owner can review and act on. It should explain what the solar contractor is proposing to furnish and install, the price for that work, important assumptions, exclusions, optional alternates, and the terms that apply to the bid.
This solar bid proposal template gives solar subcontractors and specialty electrical contractors a consistent structure for presenting photovoltaic work without rebuilding a proposal from scratch for every project.
What Is a Solar Bid Proposal?
A solar bid proposal is a customer-facing or contractor-facing document that communicates the scope, price, qualifications, and commercial terms for a proposed solar project. It is typically prepared after estimating and before the work is formally awarded.
Depending on the project, the proposal may describe modules, inverters, racking, electrical balance-of-system work, equipment, labor, permitting, engineering, subcontracted scope, commissioning support, and other project requirements. It should make clear what is included and what is not included in the proposed price.
When to Use a Solar Bid Proposal Template
Use the template when a price needs to be formally presented with enough scope detail for the recipient to understand what the solar contractor is offering.
- Residential rooftop solar proposals
- Commercial rooftop photovoltaic bids
- Ground-mounted solar projects
- Solar subcontractor bids to a general contractor
- System expansion proposals
- Remove-and-reinstall solar work
- Solar service or retrofit proposals
- Alternate pricing for battery storage, service upgrades, trenching, roofing, or related work
- Revised proposals following scope or design changes
Who Should Use This Template?
The template is intended for solar and photovoltaic contractors that need a professional way to communicate bid scope and pricing.
- Solar contractors
- Electrical contractors performing photovoltaic work
- Estimators
- Company owners
- Project managers
- Sales estimators
- Preconstruction teams
- Office staff responsible for proposal preparation
What to Include in a Solar Bid Proposal
A strong proposal should be detailed enough to define the commercial offer without overwhelming the reader with internal estimating information.
| Proposal Section | Information to Include |
|---|---|
| Project information | Customer, project name, site address, proposal number, proposal date, estimator, and project references |
| System summary | Approximate system size, module quantity and wattage, inverter approach, and mounting type when appropriate |
| Scope of work | Major equipment, installation activities, electrical work, racking, commissioning support, closeout, and other included work |
| Base bid | Total proposed price for the defined base scope |
| Alternates | Optional battery storage, service upgrades, trenching, structural work, roofing support, monitoring upgrades, or other separate pricing |
| Allowances | Items carried as allowances when the exact cost or quantity is not yet established |
| Exclusions | Work not included in the proposal, such as roofing repairs, utility upgrades, trench restoration, or other scope when applicable |
| Assumptions and qualifications | Site access, working hours, staging, electrical conditions, structural assumptions, schedule conditions, and other pricing assumptions |
| Schedule | Estimated duration, anticipated start conditions, lead-time assumptions, or milestone notes where appropriate |
| Commercial terms | Payment schedule, proposal validity, taxes, change-order treatment, and other applicable terms |
| Acceptance | Customer or contractor approval, printed name, signature, and date when the proposal is intended for acceptance |
How to Prepare a Solar Bid Proposal
- Confirm the bid documents. Review the current drawings, specifications, addenda, scope sheets, site information, and other documents used to price the work.
- Identify the proposed system. Record the relevant module quantity, system size, inverter configuration, mounting approach, and other major equipment included in the bid.
- Write a clear scope of work. Describe what the contractor will furnish and install without relying on vague phrases such as “complete solar system.”
- Enter the base proposal price. Transfer the approved selling price from the estimate rather than rebuilding pricing inside the proposal.
- Separate optional alternates. Show batteries, electrical service upgrades, trenching, roofing work, structural reinforcement, or other optional items outside the base bid when appropriate.
- Document exclusions and assumptions. State material conditions that affected the price, including access, work hours, staging, existing electrical conditions, permits, engineering, or other scope boundaries.
- Add commercial terms. Include payment terms, bid validity, tax treatment, schedule qualifications, and change-order requirements that apply to the proposal.
- Review the proposal before issuing it. Confirm that the scope, pricing, alternates, exclusions, and assumptions match the estimate and current project information.
Example Solar Scope Description
Base scope: Furnish and install a rooftop photovoltaic system consisting of 96 PV modules with associated racking, inverter equipment, DC and AC electrical balance-of-system materials, required labeling, startup support, and contractor closeout documentation. Existing service equipment is assumed suitable for the proposed connection unless otherwise identified. Structural reinforcement, roofing repair, and battery storage are excluded from the base bid and may be priced separately if required.
Solar Bid Proposal Best Practices
- Match the proposal scope to the estimate used to build the selling price.
- Reference the applicable drawings, specifications, addenda, or bid documents when appropriate.
- Identify significant equipment such as modules, inverters, and mounting systems clearly enough to define the proposed basis of price.
- Separate the base bid from optional alternates.
- Keep exclusions specific to the actual project instead of using a generic list without review.
- Document assumptions about roof access, staging, work hours, shutdowns, trenching, structural conditions, and existing electrical systems when they affect pricing.
- State whether permits, engineering, utility-related work, testing, or professional services are included when those items could otherwise be unclear.
- Avoid including internal material costs, labor rates, markup, or profit calculations in a customer-facing proposal.
- Use a proposal number and revision date so updated versions can be distinguished from earlier bids.
- Review alternates and exclusions again whenever the project scope changes before award.
Common Solar Bid Proposal Mistakes
Using an Undefined Scope
A proposal that only lists a total price can leave major questions unanswered. Identify the important equipment, installation work, and responsibilities included in the bid.
Leaving Alternates Inside the Base Price
Optional batteries, service upgrades, trenching, structural work, roofing repairs, or other variable scope should be separated when they are not part of the base proposal. This helps prevent confusion during award and contract review.
Forgetting Project-Specific Exclusions
Generic exclusions may not address the risks that actually affect a solar job. Review access, existing service conditions, roof condition, structural requirements, permitting responsibilities, utility requirements, and restoration scope for each project.
Not Identifying Proposal Revisions
When the design or scope changes, issue a clearly identified revision rather than replacing the previous proposal without a record. Revision dates and numbers help the team understand which price is current.
Including Internal Estimate Detail
A bid proposal is not the same as an estimating worksheet. Internal labor rates, material costs, overhead calculations, and profit assumptions generally belong in the estimate rather than the customer-facing proposal.
Using Schedule Language as a Guarantee
Lead times, permitting, utility coordination, material availability, access, and predecessor work can affect the project schedule. Use realistic qualifications rather than promising dates the contractor cannot control.
Keeping Solar Estimates, Proposals, and Jobs Connected
A reusable proposal template can help standardize how solar bids are presented. As bid volume grows, however, separate spreadsheets and documents can make it harder to keep estimates, customers, revisions, jobs, changes, and related records organized.
SimplySub is construction management software built for subcontractors and specialty contractors. It helps teams manage estimates, customers, jobs, change orders, documents, and other related workflows from one platform, providing a more organized way to carry project information forward after a bid is accepted.
Frequently Asked Questions
What is the difference between a solar estimate and a bid proposal?
An estimate is primarily used to calculate expected project cost and selling price. A bid proposal presents the commercial offer to the customer or contractor, including scope, price, qualifications, exclusions, alternates, and applicable terms.
Should a solar proposal list every material?
Not necessarily. The proposal should identify enough major equipment and scope to make the offer clear, but it does not need to reproduce the entire internal material takeoff. The appropriate level of detail depends on the project and bid requirements.
What exclusions are common in solar proposals?
Exclusions vary by project. Examples may include roofing repairs, structural reinforcement, electrical service upgrades, utility fees, trench restoration, hazardous-material work, battery storage, landscaping repair, or work outside normal hours when those items are not part of the contractor's price.
How should optional battery storage be shown?
If battery storage is not included in the base solar scope, show it as a separate alternate with its own description and price. That keeps the base photovoltaic bid distinct from optional storage work.
Should a solar bid proposal include a payment schedule?
It can. For customer-facing proposals, the contractor may identify deposits, equipment payments, installation milestones, or final payment requirements when those terms are part of the proposed agreement. The schedule should match the contractor's actual commercial terms.
How should proposal revisions be handled?
Assign a revision number or date and document what changed. The revised proposal should clearly supersede or distinguish itself from earlier versions so the customer and project team know which scope and price are current.
Make Solar Bids Easier to Review and Approve
A clear solar bid proposal connects the contractor's price to a defined scope of work. By organizing the base bid, system information, alternates, assumptions, exclusions, schedule qualifications, commercial terms, and acceptance information in one document, contractors can reduce ambiguity and maintain a more consistent proposal process.