Our ground-breaking and patented technology for low-cost solar water pumping and pasteurisation is based solely on passive thermal principles, operating without electricity, solar panels or moving parts of any kind. Some embodiments of the PSPP find application in irrigation, pasteurisation, energy production and storage, heating, cooling and other pressure related technologies.

Currently it undergoes tests at University College London (UCL) and Bahir Dar University (BDU) in Ethiopia, as part of Energy Catalyst grant from Innovate UK.