Thoth, I'm hunting for a link that details all of the legislation for you, but here is the gist of it:
In recent years, there has been a lot of marketing focus on motor wattage and this has rubbed off on the vacuum buying public thinking that the higher the motor power, the better the cleaning. It's meaning that we're ending up with a lot of 2000w+ machines that run very hot, with cheap filters that clog up and cause the machines to overheat and burn out within a few years. Not only are these machines drinking electricity like it's cola, there is also a cost to get rid of it once it's broken to the local council.
- vacuum's will be limited to 1600w max by September 14 and 900w max by September 2017
- all vacuum's will include a ratings sticker, giving an A-G rating for carpet pick up, hard floor pick up, dust emissions, noise and energy.
Some of our most popular cleaners including Dyson and Numatic (Henry/Hetty et al) already meet the regulations, but both companies are doing research to get the motor wattage even lower. Numatic, for example, have developed a 580w motor that generates 10% more suction than the old style 1200w motor.
It's a move that will hopefully result in less powerful, more reliable and more efficient cleaners. It's forcing manufacturers to really look at there design and find new ways of generating high performance with a lower powered motor. As has been proven many times before, this isn't a difficult thing to do. As I mentioned above, there were plenty of vacuums around in the late 80's/early 90's which would easily fit in with todays legislation and perform incredibly well.
Edit: link attached with more details.
http://https//blogs.ec.europa.eu/rebuttal/consumer-will-get-better-vacuum-cleaners-ever