Solar panels are safe to touch because the cells are covered by an aluminum frame and tempered glass. The cells beneath the glass generate current, but you cannot touch these unless you break the glass. They are holding. . Last time I setup panels it was around 200 volts and I was able to make the mc4 connector ends, touching the wire as little as possible, but still touching it here or there and no shock. Rinse the surface first and let it cool down. If it rains a lot in your area, you don't even need to flush the panels. If it's hot, don't touch your solar panel even. . Here are some key points that I'll cover, plus more you'll need to know: Can I touch a solar panel? Getting a shock from a solar panel is not likely at all, but if it happens, it can kill you.
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