Whole School Sustainability Audit


Schools are microcosms of the city – they share the same sustainability challenges as cities, but on a smaller, more addressable scale.

Schools are therefore ideal places to model sustainability solutions, and in doing so, schools can help to catalyse the change we need in the wider community.

Today’s school students will be the ones to lead society’s transition to a sustainable future.  We need to provide them with authentic opportunities to develop the skills and competencies that will equip them to lead that transition.

The transformation, described by the word “metanoia”, is a key to achieving a sustainable future.

At Metanoia, we have developed an experiential whole-school sustainability audit, which supports schools to chart their path to becoming carbon-neutral.

Project-Based Learning Courses

Our project-based learning courses help students develop eco-literacy skills, build in-house sustainability capacity, and unlock the sustainability learning embedded in the school’s campus and daily life.

Our team of engineers, economists, environmental scientists & managers have expertise spanning: renewable energy, energy efficiency, building design, low carbon transport, air quality, finance, education for sustainability, communication, and data visualisation.

Our approach to sustainability in schools combines practical and substantive solutions with authentic educational opportunities and school-wide stakeholder engagement.

Solar School 101

Solar School 101 Renewable energy on campus

How to design and build a rooftop solar energy system

Course Length: 22 Hours

Students will gain a solid understanding of rooftop solar systems and be guided through the process of developing a robust, actionable feasibility study for installing rooftop solar at their school. Students will then present a project proposal to senior leadership at the end of the course.

Waste to Fuel

The circular economy in action

How to turn food waste into biodiesel for our school buses

Course Length: 30 Hours

Students will learn about this low-carbon transport fuel and will work with the school’s food service provider to develop a supply of waste cooking oil from the school kitchen to sell to a local biodiesel factory. Participants will then work with the school bus company to set up a trial to demonstrate the use of biodiesel on a chosen school bus route.

Carbon Crunch

Offsetting our travel carbon footprint

How to measure and evaluate our emissions and offset our travel footprint

Course Length: 20 Hours

Students will learn about offsetting and what to look for when identifying a reliable offsetting programme. They will research and recommend an offsetting scheme and develop an offsetting policy for the school, which will be pitched to senior leadership at the end of the course.

Food Sustainability

Assessing the impact of our school lunches

How to analyse and assess the environmental impact of the food we are served at school

Course Length: 25 Hours

Students will learn about sustainability of food in relation to production, consumption and disposal. Participants will analyse data provided by the food service provider, and compare it to a universal science-based diet that can feed 10 billion people and be produced within planetary boundaries. At the end of the course, students will present their findings and recommendations to senior leadership and the food service provider.

Our Technology & Partners

Solar Design & Installation

Studies suggest that rooftop solar in cities like Hong Kong and Singapore has the potential to generate as much as 10% of the cities’ electricity consumption.

Building facades also offer meaningful potential for solar power given recent technological advances and cost reductions.

Helios develops rooftop and BIPV solar installations and is particularly passionate about the power of our work in schools to change behaviour, and shape the opinions of tomorrow’s decision-makers. We have a track record of developing solar projects in schools and helping schools maximise the educational value of their solar investment.

Air-Conditioner Energy Efficiency

Air-conditioners typically account for 65-70% of the electricity consumption in international schools in warm climates.

90% of the energy used by ACs is consumed by the compressor, the regulation of which is very crude.

Herein lies an opportunity for significant savings.

Most ACs use a single temperature sensor (thermostat) which results in the compressor doing unnecessary work, and the temperature in the room being either too hot or too cold.

Coolnomix is a device that can be retrofitted on the wall next to the AC unit to minimise wasted energy and deliver better temperature control. It uses dual temperature sensors and a patented ORS (optimised refrigerant supply) AI control system to continuously optimise the compressor run time.

Over 20,000 Coolnomix devices have been fitted worldwide for clients such as HSBC, 7/11, McDonald’s, and JW Marriot.

Coolnomix can be installed in 1 hour, has a 3-year warranty, and can improve energy efficiency by over 25% with a payback of 2 years or less.



Kapes is a closed loop, tech-enabled, e-commerce company with a social mission, providing sustainable school uniforms that help to make the world a better place. Kapes was born from wanting to find a way to fight the climate crisis and revolutionise the school uniform market at the same time.

From day-to-day schoolwear to sportswear, swimwear and accessories, Kapes’ extensive range of sustainably certified products will have students ready for all school activities.

Research shows that a uniform can reduce school absenteeism by 62% among those that can’t afford one. So for every child that Kapes sell a uniform to, Kapes provides a free uniform for a child in need in a developing country.