Absolutely, and it is becoming one of the most practical upgrades for public seating. You do not necessarily need to buy a brand-new smart bench. Many existing urban benches can be retrofitted with solar-powered charging ports if you choose weatherproof components and plan the installation around real sun exposure.
First, think of the system as four main parts: a solar panel, a charge controller, a battery, and USB charging ports. The panel collects energy, the charge controller prevents overcharging, the battery stores power for cloudy days and nighttime use, and the USB ports deliver power to phones and small devices. For public spaces, you will also want a vandal-resistant enclosure and waterproof cable glands.
One common approach is a retrofit kit. Some manufacturers sell compact solar modules with integrated batteries and USB ports that can be bolted to the backrest, armrest, or side frame of a bench. These kits are often much cheaper than replacing the whole bench and can be installed by a maintenance team in a few hours. Look for kits rated IP65 or higher, with a powder-coated aluminum or stainless housing.
If you prefer a custom build, start by measuring how much direct sunlight the bench location receives. Ideally, the panel should face the equator and tilt at an angle close to your latitude, but on a bench this can be difficult. Many urban installations simply mount a flat or slightly tilted panel on a canopy, backrest, or adjacent pole. Even flat panels can work in sunny climates, but they will need cleaning more often because dust and leaves block sunlight.
Next, size the battery. A basic setup for two USB ports might use a 12V 20Ah lithium iron phosphate battery, which can store enough energy for several phone charges. For a busier location, use a larger battery or multiple panels. Include a charge controller that supports lithium batteries and has low-temperature cutoff if you live somewhere with cold winters.
Wiring should run inside metal conduit or through the bench frame to prevent tampering. USB ports should be recessed and covered with spring-loaded or magnetic weatherproof caps. Use marine-grade or outdoor-rated USB outlets, because standard indoor chargers will corrode quickly. All connections should be sealed with heat-shrink tubing and silicone-filled wire nuts or junction boxes.
Permits and safety matter. In many cities, adding electrical equipment to street furniture requires approval from the parks department, public works, or a similar agency. Even off-grid solar systems may need an electrical inspection because they are accessible to the public. Grounding, short-circuit protection, and signage such as “solar-powered charging—use at your own risk” can reduce liability. If the bench is in a historic district or on private property, check local rules first.
Maintenance is another key factor. Solar panels on urban benches collect dirt, bird droppings, and graffiti. Plan for cleaning at least once a month, and choose materials that resist scratching and spray paint. Anti-graffiti coatings and tamper-resistant screws help. The battery will need replacement every three to five years depending on climate and usage, so design the compartment to be accessible to staff but not to casual vandals.
If you want an off-the-shelf solution, look for products marketed as solar smart benches, solar charging benches, or solar street furniture. Many include USB-C and Qi wireless charging, LED lighting, Wi-Fi or environmental sensors. These are attractive, but they cost more and may require a concrete foundation. Retrofitting an existing bench is usually the best balance of cost, speed, and sustainability because you reuse the existing structure.
In short, yes—there is definitely a way. The most reliable formula is a small monocrystalline panel, an MPPT or PWM charge controller, a lithium battery in a locked weatherproof box, and two recessed USB ports. Add proper mounting, sealing, and permissions, and an ordinary urban bench becomes a genuinely useful solar charging point.