Ortronic

So I was hoping that someone could help me out. I was recently contacted about a product called ortronic. it claims to capture reactive energy from the load and store it in a battery bank. The bank charges in three hours at which point a timing switch disconnects the grid from your property. the bank lasts for the remaining 21 hours after which the grid connection resumes. they claim that by using this technique energy savings of 70% can be achieved. im skeptical to say the least.