The use of solar panels for river cruisers was not as widespread as more traditional methods of generating power for onboard systems. River cruisers tend to rely on a combination of engines running on diesel or other fuels, along with generators or shore power when docked, to meet their energy needs. However, there has been a growing trend in the maritime industry, including river cruising, toward incorporating renewable energy sources like solar power to reduce environmental impact and fuel consumption. Some river cruise companies or newer vessels may have started to integrate solar panels as part of their power generation systems to supplement electricity needs, especially for auxiliary systems like lighting or smaller appliances.

Given that rigid solar panels are both cheaper and more efficient they will be the first choice of most river cruiser owners. However flexible panels are 80% lighter and for a curved roof they are usually the only solution. Portable panels offer the same kind of performance as flexible but at a higher price. However they require zero installation can be deployed whenever needed and there is space available.