Panel Upgrade (100A to 200A) in Sunnyvale

Sunnyvale's housing stock skews slightly newer than most Peninsula cities — most homes were built in the 1960s–1990s, meaning more 200-amp panels and fewer complex panel situations. Detached garages are common, sometimes requiring a short conduit run from the house panel or a sub-panel in the garage. The City of Sunnyvale Building Division has streamlined online permit applications and typically processes EV charger permits in 7–14 business days. Tech campuses for LinkedIn, Juniper Networks, and others nearby mean extremely high EV density — and a local base of customers who know exactly what they want.

Permits in Sunnyvale go through the City of Sunnyvale Building Division, which typically processes EV charger applications in 5–14 business days. We submit the load calculation per NEC 220.87, panel schedule, and one-line diagram with every application — getting most installs approved on the first review. We schedule the final inspection on your behalf and you don't need to be home for it.

Sunnyvale sits in one of the highest EV-adoption markets in the country, with high EV penetration and growing fast. Heart of Silicon Valley. LinkedIn, Apple, and other tech HQs nearby. High concentration of tech workers = high EV adoption. Relatively newer housing stock than Peninsula cities. Many detached garages. SVCE rebates available. The local utility, PG&E, offers EV-specific time-of-use rates that cut overnight charging costs roughly in half — most ChargeWizards customers in Sunnyvale pay about $0.30–$0.40/kWh during off-peak hours, or roughly $1.20 per gallon-equivalent for an EV.

ChargeWizards has installed panel upgrade (100a to 200a) in homes across Sunnyvale — from single-family homes and condos with 100A panels to newer construction with 200A service. Every install includes a free pre-quote panel assessment (so we never quote a panel upgrade you don't need), the city permit, dedicated 240V circuit, mounting, commissioning with the charger app, and final inspection coordination. Our owner is on every job — no subcontractors, no rotating crews. CSLB C-10 #1134931, fully licensed and insured.