It was a suggestion of a new game mechanic not a proposal set in stone “This way and no other!”.
The responses so far are “I want something like that” and “Sounds good but not so extreme” and only one person (who read this thread) is disliking it so much that they’re going so far to mod their game if this was implemented.
I thought this game mechanic would add more depth to the survival aspect of the game. If your idea of a post apocalyptical zombie survival game is “I’m gonna gather stuff that is going to turn me into a futuristic cyborg and my ride into a mobile house powered by the sun with no major drawbacks whatsover” then of course this would be stupid addition to the game.
I’m going to compare this to acid rain.
Acid rain sucks.
Say I’m going outside to hunt animals and gather water. 10 map tiles from my home the weather changes to acidic drizzle which is tolerable, but I still haven’t found food. So I keep looking and the weather changes to acid rain. Now I don’t have anything to eat and have combat penalties because of the pain. That really sucks.
But here’s where survival comes into effect. It’s about being prepared for things that suck.
This is where a player can pat themselves on their shoulder because they stockpiled 2 days worth of rations and gathered ressources for crafting before the acid rain hit.
The reason I suggested the event to be a once a season thing and a duration longer than a few minutes was because I wanted to have a noticeable drawback to complete reliance on high tech tools. A 15 minute blackout on electric devices isn’t going to change the way people play the game very much. I said it shouldn’t be regarded as a random weather effect, because having electric tools fail every six hours because of the randomness of the weather would be silly. Rather, it would be an event with a certain minimum and maximum duration and a set cooldown phase in which you wouldn’t have to worry about it.
First here’s a (hopefully) better explanation for the event and a better name for it:
There is a dimensional rift going through the solar system like wall. It intersects the earth’s orbit twice a year. It’s not a static phenomenom, sometimes the intervall of intersection is short:

sometimes it’s longer:

(excuse the MS Paint quality; the blue circle is supposed to be earth orbit around the sun)
kinda like the Nexus from Star Trek VII only more permanent.
Before every intersection the player will get a warning like “The sky is looking very strange…” or something along those lines.
24 hours or so after that warning Purple Sky will be in effect. The sky will be colored purple, the dimensional rift emits strange radiation so that electric devices won’t work, bionics that require power can’t be used (so bionic armor will still be effective), shockers and turrets will be disabled or at least have the “stunned” condition for the duration of the event.
After X amount of days of Purple Sky the event will end and there will be a grace period before the dimensional rift intersects with the world again. That could be half a season, a full season or so of no danger of this event. Maybe even have a set period after game start during which this cannot happen. If it already happened twice this year you won’t need to worry about your equipment failing until the start of next year. After a Purple Sky event is the time to bust out that power armor and charge rifle and go kick some zombie butt.
It would be an event you can prepare for. You have a fire phobia? Use them hotplates to can and vacuum pack food before the Purple Skies hit. Allergic to charcoal? Forge your stuff ahead of time.
This is a suggestion open for suggestion. If you can think of more plus sides to this event - for example special enemies that spawn during Purple Skies with valuable loot who will die (or vanish) automatically once the event is over (of course you have to kill them yourself if you want the loot) - just add them here. Maybe even have a massive discharge at the end of Purple Skies that will refill all the batteries to full.
This isn’t a “Take it as it is or leave it” proposal. The values aren’t set in stone. Suggest a duration or frequency of the event.