Data has plenty of value, and is often copied without authorization, but putting that aside, nobody would be stealing anyone's power. It gets produced in one re

Data has plenty of value, and is often copied without authorization, but putting that aside, nobody would be stealing anyone's power. It gets produced in one region, used locally, and excess sold to the next region, where the same thing repeats. You already paid for the power entering your region so you can't steal it and you'll sell it on if it makes sense to do so. This is already how gas pipelines work for example. It's shit with gas because the flow is one way and shutting off the gas is often done for political reasons but with solar you'd have your own production ramping up a few hours later if the neighboring region either shuts it off or uses a higher percentage of what they produced. Either way the metering happens at regional boundaries so there's no stealing involved - both sides of the meter need to be in agreement before any power flows.