This is an interesting assertion that I would like to know more about. can you provide any sources for reference?
In the case of coal power, it's often found that the external costs per kWh is actually DOUBLE that of the internal costs. So if you get $50 of electricity from coal, it's actually costing you $150. This translates to you, on average, getting one extra upper respiratory tract infection each year, plus a small chance of lung cancer or other serious illness that can lead to death.
Yes, it's actually cheaper to spend $100 on cleaner electricity in the first place.
I live in coal fired power land and in my 4 decades I've never had an upper respiratory infection and neither has any of my immediate family. I also don't see respiratory issues in my friends and coworkers outside of those that smoke. For reference I can see a natural gas power plant out my window and I could drive 50 miles either way to a coal power plant - 100 miles to nuclear. My electricity cost is $.10/kwh.
Also, the following article give some insight to the high energy usage by at least hospitals: http://www.eia.gov/consumption...
quote from article: "The 2003 Commercial Building Energy Consumption Survey (CBECS) data showed that large hospitals (greater than 200,000 square feet) accounted for less than 1 percent of all commercial buildings and 2 percent of commercial floorspace, but consumed 4.3 percent of the total delivered energy used by the commercial sector in 2003"