What a good online quote should include
A clear quote does more than show a price. It lists system size (kilowatts), expected annual production, major components (panels and inverters by brand or model), an estimated installation timeline, and whether permits and interconnection are included. It should also say whether the price is for owning the system, a loan, lease, or power purchase agreement — those are very different commitments. If a quote is vague about equipment or who handles permits, ask for details before moving forward.
Compare quality and long-term performance, not just the bottom line
Lower cost can mean a smaller system, older panel models, or a less-experienced installer. Check panel and inverter brands when they’re listed and ask about expected energy production relative to your current utility use. Look for monitoring options and how performance is measured. Remember that location, roof condition, and how you finance the system all affect outcomes — a cheaper up-front price doesn’t guarantee better value over time.
Verify the installer and protections they offer
Installer reputation matters. Ask for licensing details, proof of insurance, and local references. Search for reviews and complaints, and verify that the company handles permitting and utility interconnection. Larger names like Sunrun, Tesla Energy Solar, and Palmetto Solar show up in many markets, but whatever the company, get written answers about who will service the system and how warranty claims are handled. If an installer uses subcontractors, ask which company will be responsible after installation.
What to check in the contract before signing
Read the contract line by line. Confirm the exact equipment models and the scope of work, including any roof repairs or structural work. Look for payment schedule, cancellation terms, and whether title or liens will be placed on your property. Ask how performance shortfalls are addressed and get warranty details in writing — both manufacturer and installer warranties. Make sure the contract states who will obtain permits and the expected timeline for permits, inspections, and utility interconnection.