Chandler due-diligence pass
Before commitment 1
Ask for the Chandler application package before the final payment schedule is accepted. The package should identify the project address, array size, equipment, roof attachment method and electrical scope in the same terms that will reach city review. A homeowner does not need to become a permit technician. The point is simpler: the documents should describe the same project that was sold. If the drawing, contract and verbal story disagree about panel count or service work, resolve it while the buyer still has room to choose.
Chandler documentation: eia · energysage · azcredit · statute · congress · pvgis · census · srpCompare · srpRoof · srpE27 · srpTou · srpRebates · srpRec · apsRcp · acc · ariseia · weather · building · fees · timing · eplan · franchise · map · citySolar · municipal.
Before commitment 2
The 10-business-day city target makes completeness valuable. A missing structural detail or an unclear electrical diagram can matter more than a salesperson’s claim of fast processing. Have the installer explain their correction policy. Who responds to a city comment? Is any redesign included? Does a correction change the contracted price? Those answers are operational details, but they reveal whether the contractor has actually planned for the permit path or simply expects the office to sort out the scope later.
Chandler documentation: eia · energysage · azcredit · statute · congress · pvgis · census · srpCompare · srpRoof · srpE27 · srpTou · srpRebates · srpRec · apsRcp · acc · ariseia · weather · building · fees · timing · eplan · franchise · map · citySolar · municipal.
Before commitment 3
There is a difference between a house that consumes a lot of electricity and a house that creates a valuable solar profile. A Chandler household with weekday daytime occupancy may use output as it is produced. A household empty during the day may export more. Cooling, cooking, charging and pool schedules all shift that balance. Request a model that says what fraction of output is consumed on site and what fraction is sent outward. Without those two fields, the estimate conceals the assumption that drives the savings figure.
Chandler documentation: eia · energysage · azcredit · statute · congress · pvgis · census · srpCompare · srpRoof · srpE27 · srpTou · srpRebates · srpRec · apsRcp · acc · ariseia · weather · building · fees · timing · eplan · franchise · map · citySolar · municipal.
Before commitment 4
Roof condition should be priced as a decision branch, not as a late surprise. If replacement is likely during the expected panel life, ask for a current-install option and a reroof-first option. Include removal and reinstallation assumptions rather than assuming the original installer will perform future work at no cost. A small delay before installation can be cheaper than putting equipment on a roof that needs attention shortly afterward. This is basic asset sequencing, even if it does not make for an exciting sales presentation.
Chandler documentation: eia · energysage · azcredit · statute · congress · pvgis · census · srpCompare · srpRoof · srpE27 · srpTou · srpRebates · srpRec · apsRcp · acc · ariseia · weather · building · fees · timing · eplan · franchise · map · citySolar · municipal.
Before commitment 5
A loan offer needs to be translated into total obligation. Chandler homeowners should see cash price, financed principal, dealer fees if any, term, rate, payment changes and the handling of any anticipated tax credit. A low monthly payment can be produced by a long term or a high embedded fee. It is not inherently a better offer. Compare total dollars and assumptions across bids. If a lender model expects an early tax-credit payment, show the payment if that payment is delayed or unavailable as well.
Chandler documentation: eia · energysage · azcredit · statute · congress · pvgis · census · srpCompare · srpRoof · srpE27 · srpTou · srpRebates · srpRec · apsRcp · acc · ariseia · weather · building · fees · timing · eplan · franchise · map · citySolar · municipal.
Before commitment 6
Battery language requires one more layer of specificity. “Backup” can mean an automatic outlet circuit, selected essential loads, partial HVAC support or a whole-home system. The equipment, wiring and cost change with each definition. Chandler buyers should write the desired outage outcome in a sentence before comparing battery quotes. Then ask the contractor to identify which loads are actually backed up, how the system behaves when the battery is depleted and whether solar will recharge it during an outage under the offered configuration.
Chandler documentation: eia · energysage · azcredit · statute · congress · pvgis · census · srpCompare · srpRoof · srpE27 · srpTou · srpRebates · srpRec · apsRcp · acc · ariseia · weather · building · fees · timing · eplan · franchise · map · citySolar · municipal.
Before commitment 7
Existing rooftop equipment needs an honest inventory. Satellite dishes, skylights, roof vents, attic fans, evaporative coolers and decorative tile features can cut usable area or change labor. A remote estimate can be a useful first screen, but it cannot substitute for an on-site confirmation if the design depends on a tight roof plane. Require an updated drawing after the assessment. That prevents the post-sale moment where the array gets smaller while the savings claim remains mysteriously unchanged.
Chandler documentation: eia · energysage · azcredit · statute · congress · pvgis · census · srpCompare · srpRoof · srpE27 · srpTou · srpRebates · srpRec · apsRcp · acc · ariseia · weather · building · fees · timing · eplan · franchise · map · citySolar · municipal.
Before commitment 8
A proposal should name its warranty parties. Module manufacturer, inverter manufacturer, installer workmanship and roof penetration coverage are not one warranty simply because they appear in one brochure. Ask for duration, exclusions, transfer conditions and the process for a claim. A locally familiar contractor may be worth more than a lower headline quote if the service process is clear, but that value cannot be evaluated from a star rating alone. Written responsibility is the useful evidence.
Chandler documentation: eia · energysage · azcredit · statute · congress · pvgis · census · srpCompare · srpRoof · srpE27 · srpTou · srpRebates · srpRec · apsRcp · acc · ariseia · weather · building · fees · timing · eplan · franchise · map · citySolar · municipal.
Before commitment 9
If the home is likely to be sold, examine contract transfer mechanics before choosing finance. The buyer, lender and installer may all have separate requirements. A long-term agreement can still be workable, but only if the owner understands what must be paid, assigned or disclosed at closing. Solar resale claims are often too broad because they ignore the transaction structure. Treat a possible sale date as an input to the decision model, not as a reason to assume the next buyer will value the equipment exactly as the seller does.
Chandler documentation: eia · energysage · azcredit · statute · congress · pvgis · census · srpCompare · srpRoof · srpE27 · srpTou · srpRebates · srpRec · apsRcp · acc · ariseia · weather · building · fees · timing · eplan · franchise · map · citySolar · municipal.
Before commitment 10
The final Chandler test is plain: can another contractor reproduce the assumptions? Give a second bidder the same bill history, roof facts and desired equipment scope. If the expected output or savings changes sharply, ask why. Differences can be legitimate, but they should be traceable to orientation, shading, tariff assumptions, design capacity or finance structure. Reproducibility is a better signal than confidence. It turns the comparison from competing stories into a check of the underlying model.
Chandler documentation: eia · energysage · azcredit · statute · congress · pvgis · census · srpCompare · srpRoof · srpE27 · srpTou · srpRebates · srpRec · apsRcp · acc · ariseia · weather · building · fees · timing · eplan · franchise · map · citySolar · municipal.