Best answer by Darran_OVO
Firstly welcome to OVO and our customer forum!
We have had a few questions on this already, so I have merged your new topics together to answer them in once place.
In short, your British Gas Smart Meters will not work when you switch to OVO. Very few Smart Meters are currently compatible which we know is not ideal.
However until the industry changes that, we can install OVO Smart Meters for free so you can continue to benefit from the automatic readings etc. You'll also get a new in home display (IHD) too to manage your energy.
Once you are on supply with OVO you will be able to book a Smart Meter installation.
Hope this help. Any other questions, please search the forum or post below.
Updated on 12/07/2019 by @Nancy_OVO: although we are installing SMETS2 meters in a number of regions now, it's likely that if you're switching to OVO with a British Gas smart meter, you'd still need to have it exchanged for an OVO meter as the upgrade on S1 meters hasn't taken place yet.