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About climate projects

Carbon offsets for the voluntary carbon market


To mitigate global warming it is inevitable for companies to decrease carbon emissions. Currently there are industrial and corporate emissions which cannot be reduced or avoided, due to a lack of technical possibilities.

Companies can offset these unavoidable emissions by supporting climate projects that contribute to global CO2 reduction somewhere else. The consequence is that global pollution is reduced and global warming can be decelerated.

By replacing the boiling of water by using firewood with the method of Solar Disinfection (SODIS) with WADI, HELIOZ is generating CO2 certificates for the voluntary carbon market.

It’s about tomorrows climate

We have rethought the common understanding of CO2 offsetting. With carbon offsetting by HELIOZ within the framework of a
Water4Climate project, we enable a contribution to ongoing savings. Thus, the purchase of offsetting is not a reparation of the past but an investment in a saving of tomorrow. A HELIOZ climate certificate confirms this initiative. The corresponding CO2 certificates are generated and retired only after the actual savings period.

Our technology


WADI is a solar powered UV measurement device that visualises the process of solar water disinfection (SODIS) in PET or glass bottles. It is placed alongside bottles that are filled with contaminated water and exposed to the sun. Once the process is completed, a smiley face on the WADI confirms that the water is safe to drink. WADI is endorsed by the WHO, meeting its microbiological performance criteria and is classified for providing targeted protection.

Gold standard certified The highest standard for CO2 certificates


The Gold Standard sets the standard for climate and development interventions to quantify, certify and maximize their impact – creating value for people around the world. Gold Standard for the Global Goals (GS4GG) is the current best practice standard for climate and sustainable development interventions.

Achieving the GS4GG standard certifies that projects’ emissions reductions are measured and verified and deliver real benefits for local communities by aligning with at least three of the Sustainable Development Goals (SDGs).

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