How to fix a cracked solar panel

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How to fix a cracked solar panel

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By converting the sun’s rays into electricity, solar panels provide a renewable source of energy for our homes and businesses. Although they are usually installed at roof level, and they are manufactured to withstand the impact from small airborne debris, they aren’t equipped to handle a powerful hail storm or a stray baseball.


Safety first. The terminals on the solar panel transmit electricity to your home's electrical system when the panel absorbs sunlight. Cover the panel with a heavy blanket at least thirty minutes before beginning the repairs. In addition, working with solar panels in rain or when you are wet may result in an electrical shock.


Prepare a shading canopy that blocks the sun from the entire panel as you work. Recruit an assistant to hold a large piece of cardboard or erect a stand to hold a piece of plywood so you can work on the panel in shade.


Wipe clean the area surrounding the crack. Use only dry rags. Wet rags increase the risk of electrical shock. If the panel is very dirty, you may spray a little window cleaner on the rag and wipe the glass.


Apply glass tape to the crack in a single layer. The tape assists in directing the solder bead as you work.


Solder carefully, covering only the crack under the glass tape. The tape will melt, allowing the solder to secure the edges of the glass and fill the crack.


Use only as much solder as necessary to fix the crack.


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