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Compare the decision dimensions
Pricing structure
Compare how each option presents system scope, project price, financing, fees, and the total amount paid. Do not assume a simple-looking price is a like-for-like scope.
Equipment choices
One option may emphasize a narrower equipment path while another offers more choices. Compare production, warranties, compatibility, and service, not brand familiarity alone.
Consultation model
A more standardized process can feel efficient; a local, higher-touch process may spend more time on site-specific questions. Your preference matters.
Installation and service
Ask who performs the work, how service requests are handled, what is covered, and how support works after installation.
Customization
Compare design flexibility for roof planes, storage, electrical conditions, backup goals, and future loads.
Communication
The practical experience includes how clearly assumptions, changes, approvals, and next steps are explained.
Batteries and backup goals
If storage is part of the decision, compare battery capacity, usable energy, power output, backup circuits, controls, warranty, replacement assumptions, and the installation scope. Solar panels alone generally do not provide backup during a grid outage.
Warranties and ownership
Read equipment, workmanship, roof, battery, and performance-related warranty terms separately. Also identify who owns the system, who makes a claim, what happens if a provider changes, and how the agreement transfers if the home is sold.
Financing and total cost
Compare cash price, loan amount, interest, fees, payment changes, and total paid. A lower monthly payment can be paired with a higher total cost. Use the same assumptions when comparing two proposals and ask what is not included.
Who may prefer which approach?
A standardized, technology-forward purchase path may suit a homeowner who values a simpler process and is comfortable verifying scope independently. A local provider may suit a homeowner who wants more hands-on site discussion, customization, or a local service relationship. Either path still deserves an itemized proposal and careful contract review.
Questions to ask both options
- Who owns the system and who is responsible for service after installation?
- What equipment and production assumptions are included?
- What is the cash price, financing cost, and total amount paid?
- How are roof repairs, electrical upgrades, permitting, and interconnection handled?
- What happens to warranties and payment obligations if the home is sold?
- Who is the contact when something needs attention?