Electricity on our farm is very expensive and natural gas is not available (fracking issues aside).  In fact, we do not even have three phase power.  As a result we have had to be very careful about the equipment we select and how we operate it.  Unfortunately we do not have the budget right now for solar PV panels to be put on the brewery roof, but we do hope to apply for grants to help finance them in the future as we were lucky enough to have done with the solar hot water system.