Even when PG&E has the grid on, the quality of the power to my home has always been very dodgy with lots of spikes and dips. The problem is chronic enough to have destroyed the power supplies in a variety of AV units and appliances over the last four years. Tesla tells me that the system is not architected to run the house through the PW when the grid is up, it's strictly a backup. Has anyone introduced a whole house power filtering product into their system design? Thanks!