pedro ramalho combines sail and solar power for energy autonomous yacht concept

porto-based architect, pedro ramalho, shares his vision of an energy autonomous yacht called ‘P1’. measuring 55ft (17m) in length, the concept proposes to use only wind and solar power, meaning no more polluting and costly diesel engines.

the vessel on solar power mode

images courtesy of pedro ramalho

to achieve the right combination of solar and sail efficiency, ramalho envisions the P1 as a transformable vessel. with a retractable mast, keel, and rudder, it can turn from an energy-efficient, electric propulsion solar boat to a fully rigged sailing yacht. this set-up aims to open new ways and possibilities for traveling around the globe.

the vessel on sailing mode

with 60 sqm of photovoltaic panels, the boat can generate up to 15kW/P from the sun, powering an electric engine and charging batteries. ideally, this solar power could be used for port and coastal navigation. 

the keel and rudders also retract, enabling optimized performance for all conditions

as the sun is not a continuous energy source, limited to daylight hours and fair weather, the design also combines the technology of a sailing vessel. deploying a mainsail and jib in a fully automatized process, the P1 can boost its range to reach all shores with the performance and sustainability of a traditional sailing yacht. 

there are two pits on each side for control or sun loungers

60 m2 of solar panels with a retractable rig in the center

interior plan for 3 cabins with the full-beam saloon at the center

the retractable sailing rig functions as an articulated triangle with a sliding vertex – the sails unwind from a furling inside the masts

a dinghy slides out from the hull that can also act as an extension of the deck

project info:

project name: P1 solar and sail yacht

design: pedro ramalho

designboom has received this project from our ‘DIY submissions‘ feature, where we welcome our readers to submit their own work for publication. see more project submissions from our readers here.

edited by: lynne myers | designboom