The average cost of a roof mounted wind turbine is around Â£2,000 which will also need to be maintained (The Energy Savings Trust estimate that this could cost Â£100 to Â£200 per year). Find our list of roof mounted turbine manufacturers here.
You can substitute vegetable oil, cup for cup, for shortening. Using oil versus shortening will change the texture of baked goods. The shortening, being a solid fat, will add more air to the batter when beaten in, giving the end product more of a cakey structure rather than the more dense structure oil will give. Ultimate Baking Secrets Revealed.
Where can you buy shortening for baking? Probably at any supermarket - shortening is simply a food grade fat. Crisco is the most common brand - in some countries you may find Kremelta. It's called shortening because â¦it is used to make 'short' pastry - that is, a pastry with a high proportion of fat and very little liquid. If a recipe calls for shortening you can substitute with the same weight of butter, margarine, lard or coconut fat.