IC2 Experimental wearable helmet that generates ~1 EU/t in direct sunlight to passively charge the player's electric armor.
Guide
Craft one Solar Panel and one base helmet (leather or iron helmet, depending on your IC2 Experimental version).
Place the Solar Panel in the top center slot and the helmet directly below it on a standard Crafting Table to produce Solar Helmet.
Move Solar Helmet into the helmet armor slot in your inventory so the game treats it as worn.
Wear electric armor (Nano Suit, Quantum Suit) or a Batpack on the chest slot; without a target the generated EU has nowhere to go.
Move outdoors during daytime so direct sunlight reaches the top of your head and Solar Helmet starts producing EU.
Solar Helmet only generates power when an unobstructed sky is directly above the player; output stops at night, in rain, in caves, and under any block.
About 1 EU/t in direct sunlight under an open sky, comparable to a single IC2 Solar Panel.
It feeds EU into electric chest armor such as Nano Suit and Quantum Suit, or into a Batpack worn on the chest slot.
No. Output requires direct sunlight and an unobstructed sky; it stops at night, during rain, indoors, and underground.
On a Crafting Table place a Solar Panel above a base helmet (typically leather or iron) to craft Solar Helmet.
No, it does not add defense on its own; its only role is passive EU generation while worn.
Some IC2 Experimental builds require a Batpack or electric chestplate so the generated EU has a storage target; otherwise the energy is wasted.