Mod Name: Pumped Storage Reservoir

Description: This mod introduces large-scale pumped storage reservoirs to Factorio, designed to simulate the water storage function of pumped-storage power stations. It serves as a high-efficiency energy storage solution, providing robust support for energy management in late-game factories.

Core Performance & Parameters

• Massive Energy Storage Capacity: A single reservoir boasts an energy buffer capacity of 2,000,000 MJ, enabling it to store vast amounts of electricity—ideal for handling factory peak loads or emergency power outages.
• High-Efficiency Charging & Discharging:
• Maximum charging power: 1,000,000 kW (1 GW), supporting rapid energy storage.
• Maximum discharging power: 3,600,000 kW (3.6 GW), capable of instantly releasing massive electricity to meet the demands of high-energy equipment (e.g., nuclear power plants, large smelters).
• Ultra-Large Footprint: Occupies a 69x69 tile area (collision and selection boxes span from {-34.65, -34.65} to {34.65, 34.65}), making it a landmark energy facility for large bases.
• Extreme Durability: Features an exceptionally high health pool of 9,999,999, ensuring it remains nearly impervious to regular attacks or accidental damage, eliminating the need for frequent maintenance.

Unlocking & Construction

• Technology Requirements: Unlocked after researching "Advanced Material Processing" and "Chemical Science Pack." Requires 1,500 research units (comprising 1 automation, 1 logistic, and 1 chemical science pack each) with a research time of 60 seconds.
• Construction Costs:
• Basic materials: 5,000 steel plates, 6,000 iron plates, 1,000 copper plates, 2,000 copper cables, 3,000 stone.
• Advanced components: 2,000 advanced circuits, 1,500 concrete, 1,000 refined concrete, 200 pipes, 1,000 iron gear wheels, 1,200 iron sticks.
• Special materials: 300 electric engine units, 100 cliff explosives (for site preparation).

Features

• Circuit Integration: Compatible with circuit networks, allowing energy storage status monitoring via signals (default output: "signal-A"). Pair with combinators to automate charging/discharging.
• Dynamic Visuals: Includes charging/discharging animations (glowing effects sync with energy flow) and contextual sounds (distinct audio for storage, discharge, and idle states) for enhanced immersion.
• Water Reflection: Features built-in water reflection rendering, blending naturally with base environments.

Ideal Use Cases

• Stores solar array energy for nighttime use.
• Balances load fluctuations between nuclear power plants and factory demand.
• Acts as an emergency power reserve for grid failures or sudden high-energy needs.

Perfect for players pursuing large-scale energy management, offering a stable, high-capacity power buffer for late-game megafactories!