The PowerPath project aims to maximise off-grid energy output for rural communities through the delivery of a microgrid interconnecting module featuring remote monitoring and metering for grid stabilisation, along with an innovative solar panel coating that will allow 20-25% increased performance.
The first innovation pillar is a smart direct current (DC)-DC power converter.
The second innovation pillar is the ‘State of Charge’ estimation method.
The third innovation pillar is the Internet of Things (IoT) solution for optimised real-time remote monitoring of the village-wide, balancing DC microgrid by local operators in Madagascar, where the solution is deployed.
The fourth innovation pillar is an innovative low-cost solar coating material aimed to improve photovoltaic (PV) production in tropical environments. This includes the development of superhydrophobic coatings for solar panels using the unique properties of polydimethylsiloxane (PDMS), a fluorine-free polymer binder that reduces environmental impact during operation and end of life. PDMS is chosen due to its excellent chemical stability, abrasion resistance, water-repellence and adhesion with the glass substrate. The mechanical properties of the coating will be further enhanced by incorporating nanoparticles. The fabrication process is being designed to ensure ease of production and availability of resources in developing countries. The effectiveness of the coating will be evaluated by measuring the water contact angle of the coated glass using a contact angle goniometer. Once the optimal coating production method is established in the laboratory, the technology will be transferred to the partners in sub-Saharan Africa.
The coating systems proposed in this project are fluorine-free and have limited environmental impact compared to fluorinated systems during production, service and disposal. The technology developed in the project will produce surfaces with enriched hydrophobicity that can be cured at 45°C for a few hours at a low cost without the need for specialised equipment.
As well as providing a solution for local communities, the project also provides the coatings vendor with another product line in the PV market. The data generated during the project on the efficacy of the coatings will allow the coatings vendor to provide independent verification data to their customers.