Choosing the right renewable energy engineer can save time, reduce project risk, and prevent costly redesign. Use this checklist before signing an engineering services agreement.
Questions about experience
- Have you worked on renewable energy projects of similar size and type?
- What project sizes do you typically support — residential, commercial, or utility-scale?
- Do you specialize in solar, storage, interconnection, or a mix?
- Can you share two or three reference projects we can call?
Questions about licensing
- Are you a licensed Professional Engineer in our state?
- Can you stamp electrical and structural drawings?
- Will a PE review and stamp the final deliverables?
- Is reciprocity an issue for multi-state portfolios?
Questions about deliverables
- What documents will we receive at each milestone?
- Will you provide single-line diagrams, racking calcs, and IFC drawings?
- Will you submit and respond to the interconnection application?
- How many revision rounds are included before extra fees apply?
Questions about timeline and cost
- How long will engineering take from kickoff to permit set?
- What information do you need from us to start?
- What is most likely to delay the schedule?
- Is pricing fixed-fee, hourly with a not-to-exceed, or per-watt?
- What is explicitly excluded from the proposal?
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Use this checklist on every engineering proposal, not just the first one. The cheapest bid that ducks the licensing or interconnection questions is almost never the lowest total cost.
Frequently asked questions
- How many firms should I get proposals from?
- Two or three is usually enough. More than that and you spend more time evaluating proposals than you save in price.
- Should I share the lowest bid with other firms?
- No. Share the scope, not the price. You want each firm to bid honestly against the work, not against another firm's number.
- What is a red flag in an engineering proposal?
- Vague scope, no named PE of record, unlimited revisions promised verbally but not in writing, and no mention of interconnection or AHJ coordination.
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Need engineering support for your project?
EngineerMint helps project owners, contractors, developers, manufacturers, telecom companies, and renewable energy teams connect with qualified engineering professionals for design, review, consulting, permitting, and project planning.
Contact EngineerMint →