Locate your main electrical service panel. Flip on breakers labeled 'Solar System,' 'PV,' 'Battery' or 'Energy Storage. ' If Powerwalls are installed, flip on the Enable switch found on the right side of each Powerwall. . Connection sequence is critical for equipment safety – Always connect batteries to charge controllers before solar panels. This prevents controller damage and ensures proper system voltage detection, as charge controllers use battery voltage as their reference point. Charging the battery fully. . Once you receive permission to operate (PTO) from your electric utility, Tesla will notify you that you can safely turn on your system. PTO after installation can take from one to six weeks depending on your local utility processing times. What to know beforehand: If you've received the go-ahead from your solar installer and. . In this article, we'll explain how to wire together solar panels, a regulator and a battery.
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