In the book Animal Farm who envisions a farm with less work and more productivity?

Snowball makes the animals dream of a windmill on a knoll in the middle of the farm; this will turn a dynamo, making electricity, which will power all sorts of modern farming equipment- this will save so much labour the animals will be able to work a 3-day week, and also have comforts and luxuries in their stalls, like hot and cold water, and electric light in every stall