I see at Denny's Delano | PlugShare
a reference to EV Connect (New Electric Vehicle Fast Chargers Now Available Along State Highways in Central California | Caltrans
). You may have to use their app to see accurate pricing. I just took a look at their app.
It looks like there are 2 J1772 handles and it claims 7.2 kW (it's possible it's slightly off, not clear if they account for 208 vs. 240 volts) which are 50 cents per hour.
It also lists two dual handle 50 kW DC FCs and it's $2 per hour. You can also get hit with $1/hour idle fees.
Since you mention Delano, I HAVE charged my former Bolt at Delano Maintenance Station | PlugShare
before, which has two FREE DC FCs. Used them during my road trip between Nor Cal and So Cal in Dec 2021. I took highway 99. They are part of New Electric Vehicle Fast Chargers Now Available Along State Highways in Central California | Caltrans
. Those guys will NOT go above 50 kW though.
One unit worked fine. The other one worked except its LCD was totally out. The hardware stop button didn't work nor was I able to stop charging by pushing pretty hard on the CCS handle's trigger. I didn't want to break it as it didn't feel a two stage button that would ramp down charging then release. I had to press stop on my former Bolt's infotainment system.
If I had my Niro EV, I wouldn't even want to try it since it has no stop button I can find.