Responding to Josip's feedback plus more edits

Natalie,

Pages 7-10 seem OK to me (apart from some typesetting issues).

One topic which won't come from the Questionnaire but was addressed by the SC13 workshop are views of hyperscale datacenters.  As you may remember, Chris Malone (Google) talked about problems caused by power variability; Dan Reed talked about economic factors such as energy optimization and time value of money.  

Moreover, as I've learned recently, real time responsiveness of a power grid is very limited.  For example, New England ISO seems to have only about 1% of capacity in frequency regulation reserve; the bulk of their capacity depends on day-ahead planning and 10-30 minute reserves, and those resources can't respond instantly.

Even though 1% of NE-ISO capacity is at least an order of magnitude more than the datacenter power fluctuations we currently envision, this combines with the difficulty of integrating renewable energy sources into the grid, because both stress frequency regulation reserve.  Of course, local conditions may differ from New England, too.

Sincerely,
Josip