A World’s First in Solar-Hydrogen Residential Development.

The Phi Suea House is a 100% self-sustaining 24-hour solar powered multi-house residence.

The first of its kind, the Phi Suea House is the materialization of a dream to achieve cleaner and more sustainable energy systems. The most up-to-date sustainable technologies from around the world effectively power this residential development.

"The Phi Suea House project is a sustainable set of residences fully powered by solar panels using an innovative hydrogen fuel cell system to store its power. This is combined with a water collection and re-use system, and home automation, to maximize energy saving and minimize carbon footprint."

Thailand’s first off-the-grid hydrogen house
Febuary 4, 2016

Our energy system is designed to store solar power in the most effective and ecological way. The hybrid hydrogen-battery system maximizes the advantages of both the hydrogen storage system and the batteries.

In simple terms, the energy of the sun is transformed via solar panels into electricity. Any excess power will be converted and stored as hydrogen. When the sun is not shining, the stored hydrogen gas in tanks generate electricity by using fuel cells.

Energy System Diagram

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Energy Calculations


330 w
75 solar panels


315 w
64 solar panels


315 w
64 solar panels

Main House

250 w
84 solar panels
are made in Chiang Mai

6 kW solar pump for pond waterfall

250 w
24 solar panels

9 kW solar pump for swimming pool and well pump

250 w
36 solar panels

Average overall yield is equivalent to 3.8 hrs of full irradiation per day
(75 x 330W) + (64x 315 W) + (64 x 315 W) + (84 x 250W) + (24 x 250W) + (36 x 250W) = 101.1 kW
101.1kW x 3.8hr = 384.2 kWh / day
384.2 kWh x 365 days = 140,233 kWh/year

We produce an average of
140,233 kWh/year

CO2 is a naturally occurring chemical compound consisting of two oxygen atoms bonded to one carbon atom. Humans produce additional carbon dioxide by burning fossil fuels for energy. CO2 absorbs and reflects the earth’s heat and increases the planet’s surface temperature when emitted in excess. This effect is called global warming. Global warming can only be reversed by reducing the amount of carbon dioxide emissions.