> When looked at on a macro scale there is an impact.
At a macro level, for the chainsaws and tools that's as if each household left a single 4W LED lightbulb turned on all the time. If that's enough to have to seriously re-think the grid we're already massively doomed. I better go and talk to the power company to get approval before I plug in another lamp at home!
If you don't want someone nitpicking the equivalent of a 4W lightbulb on your list, don't include the equivalent of a 4W lightbulb on your list. It doesn't belong on a list comparing it with things like adding heat pumps, EVs, all electric home appliances like electric ranges and what not. All of those use literally hundreds of times more electricity, some during times which are hard to load shift or spread the load out over several hours.
Even then, when well time-shifted and people aren't excessive in their load, adding an EV to a household's energy usage really doesn't rock the boat nearly as much as you'd think.
The average car puts what, 14,000mi on it a year? Lots of EVs can get ~3.5mi/kWh, so that's 4,000kWh an average car would put on the grid over a year. So ~333kWh/mo. For a home using ~2,000kWh/mo before an EV, that's adding ~17% to their energy usage which can often easily be shifted and spread out to what is usually the lowest demand part of the day (late, late evening/early early morning). Its not like its doubling their usage to add an EV.
A large chunk of the time when my EV charges the wholesale electricity rates in my area are negative. Often during the way off-peak hours the grid is nowhere near max utilization. True, this varies from location to location, but no grid is operating at like 95% generating and delivery capacity all the time.
I do agree there will be some big changes that'll need to happen with electrification. Some places will have bigger changes than others, such as places that didn't even have AC before moving to heat pumps. But when it comes to places that already had to deal with a good amount of AC usage, switching from some other form of heating to heat pumps isn't really changing the peak usage that much. Its just keeping that high usage year round versus only in the summer.
But honestly if everyone on my street added an EV to their home the power company would not need to make a single change. The grid is already planned to handle all these homes with their AC running in the peak summer days while running an electric stove and the rest of their home appliances on normal schedules during waking hours, having a 28A or 32A circuit running at the coolest hours of the day when everyone is sleeping (practically nobody is doing laundry at 3am while running the oven and stove) isn't going to upend the grid. I realize not everyone on the planet lives on my street, but my street isn't some fanciful magical place that exists only in dreams.