PJM Advanced Technology Pilot Program sets up a platform to smart-grid technologies to demonstrate their technical viability and commercial values through running pilot project. This paper focuses on those pilot projects that target to provide high-quality regulation services to grid. Piloted technologies are diversified, from batteries, smart building, electric vehicles, to electric thermal storages. This paper will share program status, testing procedure and key observations that PJM staff obtained from the pilots. This paper also highlights the challenges that must be overcome to support moving those successfully piloted technologies into production environment and bring tangible benefits to all market members.