California is putting $2 million into research to determine whether gridlock can be a beneficial source of electricity. The technology at the heart of the idea is piezoelectric crystals, which could turn mechanical energy from traffic into usable electricity that can be added to the power grid. The approach seeks to harness energy that is usually wasted, thus providing an additional source of renewable energy for the state’s residents. The California Energy Commission is looking for a research facility to conduct small-scale tests on harnessing the energy that is currently being lost from vehicles traveling on the state’s roadways.