Pacific Northwest National Laboratory (PNNL) is supporting the design of new hydropower systems that minimize or avoid… https://www.rawpixel.com/image/3322375/free-photo-image-autonomous-sensor-devise-bio-acoustics-cc0Free Image from public domain license The hydropower plant above the Oahe Dam, which creates Lake Oahe, the fourth-largest man-made… https://www.rawpixel.com/image/8041749/photo-image-plant-man-public-domainFree Image from public domain licenseHydropower plants outdoors dam architecture. AI generated Image by rawpixel. https://www.rawpixel.com/image/12902651/hydropower-plants-outdoors-dam-architecture-generated-image-rawpixelView licenseHydropower plants outdoors dam architecture. AI generated Image by rawpixel. https://www.rawpixel.com/image/12902649/hydropower-plants-outdoors-dam-architecture-generated-image-rawpixelView license