Efficiency Drive? Net Energy?

It looks like the numbers don't add up to anything pretty. Do you have a treatment of the impact of various efficiency measures? zB "smart meters" or "smart appliances" like fridges that allow themselves to get a little bit warmer because the adverts have come on during a country's most popular TV programme and so millions omre people are boiling water. How many 7MW wind turbines does it take to make another 7MW wind turbine in a month (or choose a better rate, I have no idea). Or 100m2 of solar panels? How much money would it cost to install solar heating on, say, 10% of the residential roof space in Zurich? How much heating oil would it save per year? How many 7MW wind turbines would be needed to produce the electricity to manufacture 100m2 of solar heating panel? How much lithium is required to manufacture 96million 40KW car batteries? How much would it cost to retrofit existing buildings in Zurich to improve their thermal efficiency by 10%, thus reducing heating oil consumption? And so on.