Upgrading the power lines isn't the full answer, certainly some upgrades will be required, but the wires are designed for peak demand. EVs have flexibility, and can mostly be charged in non-peak times, drastically reducing the powerline and power station upgrades required. This flexibility has to be managed, and there are many companies working on this. For example: https://ev.energy/. - Source: Hacker News / about 3 years ago

The post title misses the important "without investment and changes in charging habits". Most EVs can already be controlled to set charging preferences to match lower cost, off-peak charging overnight. However, this isn't the full solution as it can create secondary demand peaks. For example, if everyone in one region has an off-peak rate starting at midnight, you will get a step-change in demand at that time.... - Source: Hacker News / about 3 years ago

Ev.energy has a solar charging mode that lets you charge w/ excess solar. I would appreciate it if you used my referral code if you decide to sign up: 278842. Source: over 3 years ago

Monta, Electric miles, ev.energy (Pando), EVerest (Pionix) opensource, Ampeco (not cheap): these are just off the top of my head. Source: over 3 years ago

I imagine some of your cost is the need to have an outdoor capable plug. At this point I'd be very tempted to get a charger and get it hardwired (why add a plug that is just another point to fail in the elements). Generally the cables are longer, you can get more data about your charging. I'm getting a rebate from National Grid for charging off hours via ev.energy (in Massachusetts) but it requires certain cars... Source: over 3 years ago

Here's the website and my email in case: joseph@devfair.com. Source: about 5 years ago