Fresh Air Filtered Systems and Solar Arrays Offer Long-term Solutions

Fresh Air Filtered Systems and Solar Arrays Offer Long-term Solutions

Solar arrays and pre-cooled filtered air systems were installed on every building.


Bangkok Patana School underwent school-wide renovations during the summer of 2019,
installing pre-cooled fresh air filtering systems in every building and adding
a large array of solar panels as part of its commitment to student well-being.

The school, known for its forward-thinking and innovative
solutions, is committed to reducing its carbon footprint, lessening its impact
on the environment and improving the health and well-being of its students as a
key priority.

Solar Panel Installation

Initially the school installed a few solar panels on the
Science Center as a teaching tool for students but after proposals by the
Student Environmental Committee and the commitment of school management, the
first large scale solar project was completed in August 2018. The school
invested 23 million baht for solar arrays on three buildings, adding a
generating capacity of 727kW. The second phase of this project saw the
installation of solar arrays on another nine buildings, bringing the school’s
energy generating capacity to 1.2MW covering nearly a quarter of its
electricity usage.

However, the only limiting factor is that the Metropolitan Energy Authority (MEA) does not allow Feed-In Tariffs. Feed-In Tariffs are payments to businesses in return for power generated being fed back to the grid. During weekends and holidays, the school has limited power usage and there is nowhere for the school to dispose of the excess power generated from the solar facilities.

Pre-cooled Filtered Fresh Air

In addition to the new solar panels, the school added
pre-cooled fresh air systems to all buildings on the campus. These systems
not only filter the incoming air but also pressurise the buildings so that open
doors won’t mean a rush of incoming, unfiltered, outside air. The systems,
which have shown to reduce sick building syndrome by replacing inside air with
filtered outside air, have two separate filters on the intake vents, in effect
reducing the amount of PM 10 and PM 2.5 to levels to those set by the US
Environmental Protection Agency, which has set the 24-hour PM 2.5 standard to
35 μg/m3.

The filters used are to MREV14 standards. Guages in the system monitor the filters so they are replaced regularly. 

PM 2.5 and PM 10

PM 2.5 is a tiny particle that is 2.5 microns or less in
width and has been found to be carcinogenic while PM 10 refers to particles
whose diameter is no more than 10 micrometres. 

By ensuring that every building in the school is equipped with whole building systems that not only filter the air but also prevent unfiltered air from entering, student exposure to air pollution will be lessened. Bangkok Patana was the first  school in Thailand to commit to these type of long-term, innovative solutions to ensure the health and well-being of its students.

Read more about our Air Quality Policy here.

Solar panels were installed on every building
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The information in this post is valid for the date posted above. Our curriculum and policies are dynamic. For up-to-date information, please contact the school directly.