Are you ready to ride the waves? Planet Forward Intern Dave Raish shows us a video â with a nifty animation â that explains how one utility plans to harness the most reliable resource on Earth â the tides. By connecting two tidal turbines â think underwater windmills â to the grid, Craig Collar of Snohomish PUD is investigating the potential of tidal power. Currently, there are only 40 sites on the planet that meet the right conditions to even generate tidal energy. Watch the webisode and then weigh inâ¦do you think tidal power will sink or swim as a viable alternative energy option?