The article "Steam Generation Under One Sun Enabled by a Floating Structure with Thermal Concentration" by George Ni et al. demonstrates a novel solar steam generator that can produce 100°C steam under ambient air conditions without the need for optical concentration. The system, called the One-sun, Ambient Steam-generator (OAS), uses a floating structure with thermal concentration and heat localization to reduce heat losses. Key components include a spectrally selective absorber, thermal insulation, and a convective cover made from bubble wrap. The OAS achieves continuous steam generation under one sun illumination by minimizing radiative and convective heat losses and conducting heat into the evaporation area. Laboratory and outdoor experiments validate the OAS's performance, showing it can reach steady-state operation and generate steam at temperatures up to 98°C. The OAS is estimated to cost around $6/m², significantly lower than optical concentrators, and has potential applications in power generation, desalination, and wastewater treatment.The article "Steam Generation Under One Sun Enabled by a Floating Structure with Thermal Concentration" by George Ni et al. demonstrates a novel solar steam generator that can produce 100°C steam under ambient air conditions without the need for optical concentration. The system, called the One-sun, Ambient Steam-generator (OAS), uses a floating structure with thermal concentration and heat localization to reduce heat losses. Key components include a spectrally selective absorber, thermal insulation, and a convective cover made from bubble wrap. The OAS achieves continuous steam generation under one sun illumination by minimizing radiative and convective heat losses and conducting heat into the evaporation area. Laboratory and outdoor experiments validate the OAS's performance, showing it can reach steady-state operation and generate steam at temperatures up to 98°C. The OAS is estimated to cost around $6/m², significantly lower than optical concentrators, and has potential applications in power generation, desalination, and wastewater treatment.