Ruchir Desai from Sprng Energy has explained that POE encapsulants are showing better long-term performance than EVA in bifacial and advanced solar modules. As per Desai, field data from South India has confirmed that POE-based glass-glass modules have degraded less than 2% over 2.5 years, while EVA modules were found to degrade between 6% and 10% under similar conditions. Desai has stated that POE provides stronger resistance to PID, moisture ingress, high-voltage stress, and acetic acid-related corrosion in both field and laboratory tests. Laboratory results have shown that POE has lower water vapor transmission rates, higher dielectric strength, and better UV aging stability than EVA. POE also performed better in thermal cycling, salt mist, and humidity tests, while EVA was prone to yellowing, delamination, and edge corrosion. Desai has cautioned that POE requires precise lamination control and has initial costs around 10% to 15% higher but is recommended for high-voltage, coastal, and desert solar projects.