However, electricity is very low on the utility provided by dams. Reducing flooding and stabilizing the water supply tend to be vastly more valuable in most areas.
Both are 'the future', and both will rather dramatically increase power grid demand.
Luckily, I think 'smart' pricing and demand scheduling will mean that the infrastructure changes will be minimal and gradual despite the massively increased demand - there won't be rolling blackouts or emergencies anytime soon.
At least in WA (OR may be different but as PNW neighbors we are often pretty similar) a lot of heating locally is electric resistance, so heat pumps would actually represent a net decrease in energy use.
However, electricity is very low on the utility provided by dams. Reducing flooding and stabilizing the water supply tend to be vastly more valuable in most areas.