That's a great question! I've actually seen a few of these "smart" bins installed in my local park and downtown area, so I can share some firsthand observations and what I've gathered from others.
The short answer is yes, they generally work well for their main purpose. The solar panel on top powers an internal compactor. When the bin fills up to a certain level, a mechanism crushes the trash, allowing it to hold 5-8 times more waste than a standard bin of the same size. This is their biggest win: they drastically reduce overflow and the frequency of collection needed. For city managers, this means lower labor and fuel costs.
From a user perspective, they keep areas cleaner. No more litter blowing out of an overstuffed can. They also often have sensors that alert sanitation teams when they're nearly full, optimizing collection routes.
However, they're not magic. The initial cost is high. They require a specific type of waste stream—mostly dry, compactable trash like cups and packaging. In very shady areas or during long stretches of cloudy weather, the compactor can slow down. Maintenance is also more complex than for a standard steel bin.
Overall, the consensus is positive for high-traffic urban spots. They are a visible, effective tool for reducing litter and operational costs. For a small park or a low-traffic residential street, a traditional bin might be more cost-effective. But as a solution for busy city centers, transit hubs, or parks, solar compactors are a smart, sustainable upgrade that genuinely delivers on its promise.