What is the most efficient power source in The Last Caretaker?

Solar panels and wind turbines are the most efficient long-term power sources as they require zero fuel. Solar panels work only during daytime, while wind turbines work 24/7 in windy locations. Pair them with batteries for consistent power availability.

Should I use generators or renewable energy for my power grid?

Use a hybrid approach. Generators provide consistent, controllable power and work as excellent backup. Renewable sources (solar/wind) reduce fuel dependency for base load. Higher tier generators offer better W/L fuel efficiency.

How many batteries do I need for a renewable power setup?

Size your battery bank for 8-12 hours of base load coverage. This ensures power availability during nighttime when solar panels don't generate. Use the Power Calculator tool to determine exact battery capacity needed based on your consumption.

What's the difference between solar panels and wind turbines?

Solar panels only work during daytime but scale well—add more panels for higher output. Wind turbines are location-dependent and work day and night if placed in windy areas. Check wind strength before investing in high-tier turbines.

Which power module tier should I prioritize upgrading first?

Prioritize upgrading your primary power generation source first (solar/generator). Then upgrade batteries for better storage capacity. Higher tier modules provide significantly better output-to-space and efficiency ratios.

How do I compare power module efficiency?

For generators, compare W/L (watts per liter of fuel consumed). For renewable sources, compare power output to space requirements. For batteries, compare Wh capacity to tier cost. The comparison tables show efficiency ratings for each module type.

Power Modules Performance Comparison

Compare all power generation and storage modules side-by-side. Find the optimal combination of generators, solar panels, wind turbines, and batteries for your power grid.

Generators

Fuel-powered modules

Solar Panels

Renewable energy

Wind Turbines

Wind-powered generation

Batteries

Energy storage

Fuel Generators

2 modules

Module	Tier	Output	Fuel Use	Efficiency
? Large Electric Generator	T15	2400Wh/h	1.2 L/h
? Small Petrol Generator	T5	1200Wh/h	0.6 L/h

Solar Panels

3 modules

Module	Tier	Output
Lumimax	T13	4000Wh
Lumimid	T6	2000Wh
Lumilite	T2	900Wh

Wind Turbines

3 modules

Module	Tier	Output
Typhoon	T14	2600Wh/day
Cyclone	T8	2000Wh/day
Whisper	T4	1300Wh/day

Battery Storage

1 modules

Module	Tier	Capacity	Value
? ONi SparkCell	T5	250Wh

Power Grid Optimization Guide

Generators (Fuel-Based):

Provide consistent, controllable power output but require fuel management. Best for base load power and emergency backup. Higher tier generators offer better W/L efficiency.