Step 7: Keep Battery Brand Preference Optional
The next step asks for battery brand preference, but it remains optional.
That is the right structure.
Customers may already have brand comfort with EASUN, SES, Photon, Narada, Didu, FOX, Huawei, KSTAR, Dyness, Inverex, PylonTech, Sunwoda, or other market options. Their preference should be respected. But technical compatibility should not be sacrificed.
The final battery recommendation must consider inverter pairing, communication protocol, support, warranty, available stock, discharge needs, installation environment, and whether the project is residential, commercial, or industrial.
A customer can prefer a brand. The system must still be engineered.
Step 8: Separate Commercial ESS From Ordinary Home Backup
The merged journey also allows larger ESS or premium battery preferences.
This includes options such as KSTAR ESS combinations, Huawei hybrid battery ecosystems, FOX high-voltage storage, SES larger lithium options, and KSTAR 50 kW with 100 kWh ESS.
This is necessary because commercial and premium residential storage should not be forced into a small-home battery logic. A clinic, office, school, warehouse, or commercial operation may need structured backup, heavier inverter support, larger battery banks, future expansion, and better monitoring.
Commercial ESS is not just a bigger battery. It is a different planning category.
Step 9: Handle Solar Panel Choice as Brand Confidence, Not Blind Wattage
The panel section is intentionally designed around brand confidence rather than exact wattage promises.
Customers can express comfort with brands such as Longi, JA, Jinko, Trina, Canadian Solar, Yingli, Aiko, Astroenergy, N-Type, bifacial, or Zorays Solar’s best current module recommendation.
This is better than asking customers to lock exact panel wattage too early.
Panel wattage changes with stock. Market rates change. Roof layout changes string design. Available space affects module choice. Warranty, tier, technology, bifacial gain, and actual procurement conditions matter. The right panel for one site may not be the right panel for another site.
The form tells the customer that Zorays Solar will employ the most suitable nominal wattage panel according to technical design, stock, warranty, roof layout, and rate per watt.
That is how panel selection should work.
