Now that the local DCFC station is charging for electricity ($0.19/kWh), I'm going to have to drive much further before breaking even, although I still do have access to a free station but it's almost 20 miles away. The main reasons why I bought the adapter was two-fold: Having access to the local (then free) ChargePoint station and opening up opportunities when traveling. I'm basically retired now so assuming this COVID-19 thing gets solved quickly and effectively, we're probably going to be taking some road trips.
I don't know where you're exactly located but from the Santa Clara County Water District to Lucky on 129 Bernal Rd (
PlugShare - Find Electric Vehicle Charging Locations Near You) is 6.8 miles or 8 minutes per Google Maps. It is likely closer for you than Walmart on Ranch Drive in Milpitas. I mention both of those since they're both part of
Home Page - DRIVEtheARC. Between certain hours at DTA stations, you can get free EV juice and other hours, you can get 0, 25, 50 or 75% discounts off EVgo prices.
Two stations (Pacific Pearl in Pleasanton (haven't been there yet) and one of the DC FCs at Lucky's) is free at any time if you get a "reservation" in their hokey app:
https://drivethearc.com/how-to-use-the-app/. Just use sections 4 and 5. Ignore the rest. You may wish to click the filter button to only show DTA stations instead of DTA + EVgo stations.
The rest of the DTA stations you need to get a "promo ticket" that gives you 0 to 100% discount depending on time of day. Sometimes, they give special 100% promo tickets for filling out a survey that might pop up in their app. I've received a few of those. I used one earlier tonight (on expiration day) and receive another tonight that expires on 10/31.
BTW, the DC2 unit (Lucky's at Bernal free w/reservation at any time) has a damaged CHAdeMO connector. There might be a missing (thin) pin and some of the plastic is melted/deformed. A Leaf driver showed up and was unable to plug in properly with it. Since it was past 10 pm and free for the other station at the point, I swapped w/him (I drive a Bolt). I used SAE Combo for free w/"reservation" on DC2 and he used DC1 that had working CHAdeMO.
That driver called EVgo to report the problem and it's been noted in Plugshare now. Anyway, both of us got our supply of free EV juice tonight.
Summit House in "Los Gatos" is also a DTA site and seems to have very generous free hours. But, you need to make your way up and down the hills of highway 17. I also have not tried the chargers there yet.