The graph below shows recent loads on the Norwalk transmission lines. The graph shows heavy air conditioning use, and that the actual usage is far outpacing what local utilities anticipated having to supply (You can see live data at www.cvx.com).
The difference between the two is almost 100 megawatts, or the amount of the electricity generated by a typical generating facility. Usage patterns like this will likely result in shortages if anything goes wrong.
A simple tune-up can lower your air-conditioning usage by an average of 11%. If everyone in Norwalk had their systems tuned using this new digital technology, this power curve would be a full 10% or more lower.