This conference has been recognized for 21 years as a global platform to discuss Power Quality, Energy Efficiency, and Smart Grid. It offers networking opportunities and presentations from around the world. Utilities and large power users will share their experiences and expectations. The conference also includes an Energy Efficiency day with a focus on energy losses, conservative energy technology, renewable generation, and its impact on electricity supply. Power Quality Blog, created by Power Quality (Thailand) Co., Ltd., aims to share knowledge and experience in solving power quality challenges.