Storage solution for ebike?

I am thinking of buying an ebike but I am at a loss how to store it. We have a parking space for two cars in size but only accessible for 1 car and there is neither a garage nor a carport (maybe we will build a carport in several years). From next year we will have a roof over the patio, but there is a lot of grass between there and the street and I am not sure if there is enough space. There is not enough space in the house. Are there any other possibilities? I have seen plastic sack like things but everything we have stored like this, the storage was blown away by wind.

In bike stores you can get plastic coverage that can be attached to the bike to prevent it from by blown away by the wind. motor bike covers work also.

wind won‘t blow away an ebike.