Thomas P. Wohlfarth 
Senior Vice President - Regulatory Affairs Domlnl9n

Energy 
120 Tredegar Street, Richmond, VA 23219

DominionEnergycom

June 13, 2017

Mr. Vamsi Chadalavada
Chief Operating Of?cer
ISO New England Inc
One Sullivan Road
Holyoke, MA 01040-2841

Dear Mr. Chadalavada,

I am writing today to alert you that Dominion Energy is performing a strategic
assessment of our Millstone Power Station. Given that Millstone is the largest
generating resource in New England; we want to keep you apprised as we work
through this process.

As you are well aware, nuclear power plants in deregulated markets require the
same sustained capital and Operating investments as nuclear power plants in
regulated states. However, it is becoming increasingly apparent nationwide that
deregulated energy markets are not conducive to these sustained investments.

This is particularly true in cases when carbon-free nuclear energy is not eligible
for the substantial clean energy procurements being conducted at the state level, as
is currently the case here in New England and in Millstone?s home state of
Connecticut. As you know, Millstone accounts for the equivalent of more than
halfof Connecticut?s electricity production and virtually all of its carbon-free
electricity.

We will continue to vigorously pursue legislative options for equitable treatment
for nuclear power in Connecticut's clean energy procurement process. However,
due diligence for our shareholders requires we undertake this strategic review. In
completing this review, a key variable will be our continuing obligations as a
generator in the New England ISO. As a routine part of such a review, we will
factor these obligations in as part of our larger assessment of our path forward in
Connecticut.

Accordingly, I would like to confirm Dominion Energy?s understanding of the
options available to any generator that may choose, for economic reasons, to exit

the market in New England. Our understanding is that a generator that has a
capacity supply obligation has the option to transfer such obligation via a
commercial transaction or alternatively pay a ?nancial penalty in order to exit the
market prior to their obligation ending.

Please con?rm this at your convenience. And thank you for your timely attention
to this request.

Sincerely,

fwd? 09W

Thomas P. Wohlfarth
Senior Vice President, Regulatory Affairs