When does it make sense to decommission a dam? There are many old dams all over the world that are no longer providing the same benefits as when they were first constructed. In fact, some have been abandoned for years. So when do we make the decision to decommission them? We must look at the pros and cons, weighing the benefits of the dam with its downsides. And in simple terms, decommissioning a dam makes sense when the downsides outweigh the benefits. But a big part of this conversation is foc

Norwegian Engineers Create “Damless” Hydropower System Using Air Pressure Instead of Dams 🌊⚙️ In a groundbreaking renewable energy experiment, engineers in Norway have developed a new “damless” hydropower system that generates electricity using air pressure — not massive concrete walls. Tested along a western fjord, the container-sized prototype channels flowing water into a sealed chamber, where the force of the current compresses air. That air pressure is then released to spin turbines, produ