Water & Climate India | tun_to_zero

Water & Climate India

Project facts

Project type: renewable energy, water, sanitation and hygiene

Project location: India, Madhya Pradesh

Project standard: Gold Standard GS4GG

Annual emission reduction: 100.000 t

Project start: 2021

Due to strong seasonal fluctuations and the lack of sustainable water management, the population in India suffers from water scarcity. Thanks to HELIOZ's solar water disinfection method, clean water treatment is made possible with the help of WADI. This reduces pathogens and eliminates the need to burn firewood to boil water, thus avoiding additional greenhouse gas emissions.

Offset emissions

Project overview


The project

India is one of the countries in the world most affected by water scarcity. This is due to seasonal variations in rainfall and a lack of water management in the country. The Composite Water Management Index estimates that around 600 million people are affected by an acute water shortage. Moreover, it is not only the lack of water that is an issue, but also the quality of water. In the years between 2012 and 2017, around 70 million cases of water-related diseases were recorded in India. Diarrhea is one of the main causes of deaths in India, accounting for 60 percent. Due to this, the government initiated the "Swachh Bharat Abhiyan" campaign to improve drinking water quality and make access to clean water affordable for people. Another problem is the occurrence of lung diseases due to inefficient wood burning in the course of water treatment.


Helioz launched the "Water & Climate India" project in 2021 together with the two partners from India "Caritas India" and "Ernst & Young" and aims to reach 250,000 people. The project is thus a part of Helioz's global "Water4Climate" initiative. The project aims to provide 365 million liters of purified water per year to 50,000 households, each with five household members. The project is also expected to generate other positive aspects and supports the achievement of nine SDGs targets.


With access to clean drinking water, ten percent of household income can be saved each month, as health costs are reduced and, in addition, firewood can be dispensed with. Since the amount of fuel can be reduced, annual CO2 emissions are reduced by 100,000 tons. In addition, up to 80 percent of waterborne diseases can be prevented. The reduction in disease cases leads to an increase in attendance at schools by up to 40 percent and at work by 60 percent. Implementing WADI can thus protect local forests and make a significant contribution to climate mitigation.


This project contributes to the following Sustainable Development Goals (SDGs):
No poverty
The time and financial resources of households no longer have to be used for collecting or buying firewood. Thus, lower expenditures for basic services (medical costs) result from the introduction of project technology.
Good Health and well-being
The project is expected to provide around 250,000 people with access to clean drinking water, and diseases transmitted by contaminated water, such as diarrhea, cholera and typhoid, can also be largely prevented.
Quality education
Households have received training on the proper use of water and sanitation. In addition, the introduction of WADI has increased attendance at schools and workplaces.
Gender equality
By saving the time the women previously had to spend collecting firewood, they now have the opportunity to generate their own income.
Clean water and sanitation
Access to clean drinking water is a human right. Each family is provided with tools necessary to disinfect about 20 liters of water per day.
Decent work and economic growth
Creating employment opportunities for local people in the project areas.
Reduced inequalities
Improved school and work attendance by reducing sick leave.
Climate action
Reduction of CO2 emissions of more than 2 tons per household per year.
Life on land
Protection of local forests due to reduced need for firewood. 

Use of WADI on site




WADI in use