7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

1/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

2/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

3/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

4/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

5/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

6/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

7/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

8/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

9/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

10/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

11/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

12/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

13/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

14/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

15/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

16/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

17/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

18/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

19/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

20/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

21/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

22/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

23/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

24/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

25/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

26/27

7/31/2019 Earthjustice.exhibit 15 - A Comparison of PC_ CFB and IGCC Technologies (6!26!07)

27/27