In the footage, caught on a local homeowner’s security camera, a person appeared to pull up near the lake in their truck and begin dumping trash into the water. The lake provides drinking water for about 11 million Americans.

Engineers in the U.S. and elsewhere are finding innovative ways to harness the power of waves in order to create clean, cheap electricity — but with the technology in such early stages compared to other methods, some people have reservations about whether the juice is worth the squeeze.

Around 26% of the world’s population lacks access to clean drinking water. In America, that percentage is much smaller, but many people still struggle to get consistently safe water from their faucets — not to mention concerns about PFAS, microplastics, and other substances.

The world is becoming more electrified every day, and China is the leader right now in just about every step of the battery manufacturing process. If the U.S. wants to take the lead in the clean energy revolution, it needs to invest more in battery innovations.