Protect a Generator from an EMP: Building a Large Faraday Cage

This DIY Faraday cage build shows how to protect larger gear like generators and solar power stations from EMP by focusing on what actually works—continuous conductive coverage, sealed seams, and proper lid overlap. Using materials like copper mesh or layered aluminum foil with conductive tape, the design creates a shield that blocks high-frequency pulses, with simple tests confirming effectiveness. While copper setups can get expensive, budget builds using multiple foil layers still work well if done carefully. The key takeaway for preppers is layering protection—combining cages, bags, and smart design—to safeguard critical power and communication equipment when it matters most.