I put in one portable solar (maximum power output: 30kW) panel and belt immunity equipment (energy consumption: 100kW) into modular armor and it worked
Should this work?
I haven't messed with the belt immunity equipment yet but most other power armor equipment has an internal buffer that stores power. Open up the power armor and watch for a bar on the belt immunity equipment and see if it slowly drains while standing on a belt. You'll probably start jerkily sliding on the belt once that bar gets drained.
Same as with the legs. With just portable solar you can run faster for five seconds until the power drained. Then wait until power charged up and again 5 seconds weee
I agree items have an internal buffer but belt immunity equipment works immediately after adding the solar panel and not after accumulating the energy reserve. Do not interrupt the action every few seconds to accumulate energy, it does not work only in the middle of the night.