Average Costs for Solar and Wind Electricity Could Fall 59% by 2025 (WK-intern) - Dramatic price drops for solar and wind electricity set to continue as cost reduction drivers shift The average costs for electricity generated by solar and wind technologies could decrease by between 26 and 59 per cent by 2025, according to a report released today by the International Renewable Energy Agency (IRENA). The report, The Power to Change: Solar and Wind Cost Reduction Potential to 2025, finds that with the right regulatory and policy frameworks in place, solar and wind technologies can continue to realise cost reductions to 2025