The Power Plant is the highest-value farming zone in Storage Hunters: Open World, and it comes with its own weather event, Acid Rain, that you switch on by finishing a specific quest chain. Once that weather is live and your Gavel Luck is stacked correctly, this is the fastest place in the game to bank millions.
Quick answer: Complete the fifth Power Plant quest, which asks for two nuclear reactors and a Uranium Depositer, to activate the Acid Rain weather event.

Power Plant garage entry requirements
Before any Acid Rain farming, you need to get into the Power Plant auctions. The zone has two garages, and each one gates on both a cash entry fee and a net worth threshold.
| Garage | Entry fee | Net worth needed |
|---|---|---|
| Power Plant Tier 1 Garage | $10.00 | $7,500 |
| Power Plant Tier 2 Garage | $20.00 | $65,000 |
Tier 1 opens the door early, but the Tier 2 lockers carry the higher-value pool. Push your net worth past $65,000 before you settle in for serious farming.

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Acid Rain does not appear on its own. It is unlocked by clearing the Power Plant quest line, and the final quest is the one that flips the weather on.

The nuclear reactor sits inside the reactor structure alongside the weather machine, so the Power Plant is both where you complete the quest and where the event plays out.

Power Plant collection items and their values
Two items stand out in the Power Plant collection book. The Uranium Depositer is part of the quest requirement, and the Weather Machine Orb is the top prize of the set.
| Item | Rarity | Value |
|---|---|---|
| Weather Machine Orb | Mythical | $110,000 |
| Uranium Depositer | Legendary | $9,000 |
Hold onto the Uranium Depositer until the fifth quest is done, since you need it for the hand-in. The Weather Machine Orb is a straight payday at $110,000 if you pull one.

Gavel Luck setup for maximum profit
To pull the most valuable mutations out of Power Plant lockers, tune your Gavel Luck toward the high-multiplier modifiers. Weighting Corrupted, Chrome, Gem, Void, Diamond, Silver, and Gold gives you the best shot at the items that carry a run.
| Mutation | Gavel Luck |
|---|---|
| Corrupted | +214% |
| Chrome | +205% |
| Gem | +189% |
| Void | +170% |
| Diamond | +151% |
| Silver | +122% |
| Gold | +108% |
| Cobwebbed | +42% |
| Antique | +33% |
Tip: Void and Chrome sit at the very top of the mutation value scale, so even a small chance of landing one is worth prioritizing. Corrupted carries the highest luck weighting in this setup, which is why it anchors the build.

Why the Power Plant is the best money zone
The Power Plant combines a high-value locker pool with a weather event you control and a Gavel Luck build tuned for rare mutations. That mix is what makes it the most efficient spot in the game for farming millions of dollars at pace.
Winning containers here can run well into the thousands per locker, so keep enough cash on hand to bid on the Power Plant units when they come up, and sell your mutated finds back through your shop to keep the loop moving. With Acid Rain active and your luck stacked, every auction cycle becomes a chance at the top of the value table.






