Two homes can get identical panels and end up with very different results, purely because of who installed them.
Green flags
Accredited and licensed; quotes that explain rebates clearly; sizing based on your usage; straight answers on warranty and support.
Red flags
High-pressure u201ctoday onlyu201d pricing; vague answers about who does the install; your details sold to multiple callers.
You can do this vetting yourself, or let Volteragen do it first.