This document summarizes key performance indicators for a Brazilian utility company from 2006 to 2007. Some of the main points are: - The percentage of captive consumers increased from 97.5% in 2006 to 99.5% in 2007. - Total market size grew from 38,183 customers in 2006 to 39,932 in 2007. - Capex spending was BRL433.5 million in 2006 and BRL444 million in 2007, with most spent on system expansion and maintenance. - EBITDA declined from BRL2,490.8 million in 2006 to BRL2,312.3 million in 2007, while adjusted EBITDA margin fell from 33.3% to 30.

1. ! "#

3. $ % & '(
! % ) + ,+ ,
* - .+/ +0 12*+ 3 05
0 ) 4 6
$ 7 ' ) .+ 1
*- 44
0/ +0 12*, ,3
0 ) . 6
$ ,0 $+
8. ) 9 :53 /
,
; 3 +0 .
0
$ ( ) 2*-, 0
) < 69
= ) % ( > + < / +0 1
' 4 0 ( > -+<
' / +0 .
0
= & % ? +5 +0 1 34
0 +0 .
0
$ 30 $
8. '&2 ! ' 6
$ ( @ 9 *- 03
) , +0 1
0 ) 3 .5
* 5
-0
A.
$ ' &B 9 *1 5
) . ! ( +0 +0 .
0
$ ( @ 2 0 69 *- 43
+A . ) <
$ C +0 .2? ? 69 <-
0 & @1 - /
$ 2 6 <1
$ & D +1 +0 5
0
+< 9
0 -
3

4. !
2F 6
E %
"# ! $ % " & # #'
&& ( ) +
*
,
Captive Consumers
' -. $
80.0% /' $
18.8% Free Clients
0 11
# . $-
1.2% 2 - $-
Potentially Free Clients*
""3
2% - $ .
0# 14 # # # 5 + 78
6 8
39,932
38,183
2006 2007
32,577
31,656
13,500
12,687 10,072
9,898
6,606 6,475 6,527 7,355
2,465 2,530
Residencial Industrial Commercial Public sector and Free Clients Captive Market Total Market
Others
26 % & ?)
G 7& +3 H.: % & ?2
.0 7& 6
4
2G
G6

5. 24
0# # 5 # 6# 7 3# ' # 5 7
< 4 $ 4
13.5
99.0 99.1 99.5 12.9
12.0
97.5 11.5
7.0 6.4 5.5 5.0
6.5 6.5 6.5 6.5
2004 2005 2006 2007 2004 2005 2006 2007
Technical Losses* Commercial Losses
0# # 5 7 ; ' '/ 0# # 5 7
$ @ 9 0 +/
-- $ +5 0 0
00 +30 0
0
$ @ 9 43
4 /
0 ' # # 9 # ( $ . 00
+ 0 "
5 : 7
$ 9 - 30 0
- 0 -+ 00
- 0
= #> #& 1# ?
$ ) 9 . 00 5 00
30 <0
-
26
G ?
5

6. / 1
/ 1 5 )1 #7 ? ) - .1
- #
544.4 15%
98.5 16% 10%
433.5
403.6
377.7 69.2 2%
48.8
76.8
19%
446.0
364.3
37%
354.8
300.8
Customer Service and System Expansion
Maintenance
2005 2006 2007 2008 (e)
Self - Financed
Capex Self-Financed
Information Technology
Loss Recovery
Others
6

7. #4 # " & #
@ & #
" & #
& #
- A * 2/
/ 0 ;=
. A %
A B
. .
/A
6
.
-
$ - $
$. $
$
$
$ .
-8 .
A ' / 9" &
&
A .* 5 * * 7
? > # 1 # ## (
'
> &
# #?
= )
= ?
= ID
= ' )
= ) % !
26 D
G H +0 <
0 7

8. 6# 5) #7
11,246.3 11,292.0
4,326.7 4,161.2 -.
2,947.4 2,843.3
6,919.6 7,130.8
1,187.9 970.7
1,759.5 1,872.6
2006 2007 4Q06 4Q07
Net Revenue Deduction on Operating Revenue
/ # 1 ! ' ' ( " &
& ' C#& -
44 D (
$ +0 1 +0 . 31
0 09 /
$ 3 0 3 09 3
81 8.3 /
; ( # (3 (> $#&
& ) 1 #
E
3>
# F' # #2
& 4 1 ( #& ' 00
0
' ( 'G 1 # #$
& D (
$ +0 1 +0 . ,5
0 09 /
$ 3 0 3 0 9 5,
81 8.- /
8

9. 24 C4 85 ) #7
5,466.1
5,156.3
695.5
848.5
/ #4 #
3,330.5 ' 4# 1 # &
3,142.8 . # '
1,660.9 # 1H # >
4
1,326.4 151.6
160.8
899.3
C4 ' &
#
1,440.1 873.6
1,165.0
292.0 610.0 ) 1 #
' ) 1 # 4
2006 2007 4Q06 4Q07 ( &# 1 #
Other Operating Expenses Energy Purchase Transport #14 #
C
2 C4 ? # -
& 5) . 1 #7
?
$ ' 9 3 0 9 6 ) +0 .
8.2 * 0 D & ) %
: 26 ) - 10
* 1 2*- 4
) +0 +0 1 2 6 ) , <
06 * 0
J ( @
$ ( 9 *3 3
) , +0 .
0
(A ? #& 5) 1 # 7' # / 4 C4
5) 1 #7 ' 'G 1 #& # # &5 )
&
1 #7
26 (
G 9

10. B" %
/F
%G
' ' B " %85 )
/F #7
-
-
2,490.8
2,312.3
727.4
647.6
-
.
$.
1,763.4 1,664.7
578.4
459.2
145.3
$.
247.4
433.1
211.8
2006 2007 4Q06 4Q07
EBITDA Adjusts Adjusted EBITDA Margin
26 %
G & '( K & '( > @
! % ! % D > ) &> @ >; ( 10

11. ; 5) #7 = / # 5)
1 #7
2006 2007 4Q06 4Q07 712.6
(41.5)
373.4
(149.4)
(176.6)
99.0
9.5
(342.2)
2006 2007 4Q06 4Q07
/ # 1
14 #&
& ? '#& # # #& '
$ ( D & 9 > A # ; ' 5 )- 1 #
& C 7
= ) ) < 3
* +<
= ? 2( > -, /
' - +0 1
0 F ' ' 4 ' '# 5)
( > 05 /
' . +0 .
06 1 #7
= ) -,
< / +0 1
0 F ' ' # 44 '?
-5
-/ +0 .
0
$ ( 9 *- 43
) <
E C E ? #&
& C4 ' $ ' &B 9 *1 4
) .
# C4 # )
& 1 # / #
04 $ ) - - 0 0L
* 1 H0 7 2*30
) H 6
$ ) - . 0 0@
* . H0 7 2*33
) H 6
A($# ? -
11

12. 0 #'
# 'F
# " 1 :3# " 1 5) #7 F $
$ - $
4,305
4,830
4,305
6# F ?
4,105 949
367 367
523 3,658 $ ) - 4 2*< 3
0 / ) +< 6
3,276
2,972 2,972
3,937 3,881 3,937
3,582
= F ?
$ ) - . 2*1 <.
5/ ) 5 6
3Q07 4Q07 2006 2007
Long Term Short Term Net Debt
= >" 1 '0 ' #
#
0B
0 / / /
F . *
* * * *-* * *
, 1 5 )1
# #7 - .
/ 0 /
F < 0 /
F < . 0 /
F < 0 /
F < .
(5
( 7
% 3&85
( 7
G@ 12

13. 0 #'
# 'F
% 0# '% 3& 6# F 9
5.5 5.5 5.5 6.4 6.2
IGP-DI
54.0%
Fixed Rate
12.2%
123.3%
109.9%
105.3%
104.3%
102.6%
Libor 1.0%
CDI/Selic
32.8%
4Q06 1Q07 2Q07 3Q07 4Q07
@ D ) +,
* +.
% CDI Avergage Life - years @ ) -4 5
* .
""3
2% ) - .1 #
%1# H # ' 58
87
-- .
. . .
. .
. . . . . .
. .
2007 2008 2009 2010 2011 2012 2013 2014 2015 2016-22
)5 #
>* ; A
0 7 ; A
0 BF
= I )8
26 &
G ) 9 +H H 0 $ M *-0 K ) -.
- +5+0 . 0 * . 13
2G @
G6

14. 0 ;#>
)1 # E E -E E
/ 0 - . -
24 0 ; >
# - - .- .
/ 1 5 7
- 5.7 5 7 5 7 5 7 5 7
= ; C4 5 7
. 5 7 5- 7 5- 7
- 5 7
. 5 7
.
= %1# H # 5. 7
. 5 7 5-7 5 .7 5 7
A # ; ' C4 5 7
- 5 7 5 7 5 7 5-
.7 5 7
/ # "C
1 5 7 5 7 5 7 5 7 5 7 5 7
F ' ' $ $ 5- 7 5 .7 57 5 .7
; 0 ; >
# -. .. 5 7 .
; 0 - . - --
- --
-
C ?
$ 24 0 ;#>? 53 /
, ; 3
+0 .
0
$ = %1# H # ? ) ,.
*. "
+0 .
0
$ A # ; '?
+0 1
0
$ F ' '? ) - 03
*, +0 1
0 ) 3 .5
* 5
-0
A. 14

15. 0 4
# # 6#
0 4
# # 6# 3 *-*
$ %@ 2? ? 69
& @< 5/
0
$ !@ 2? ? 69
& @1 -0
0/
$ +0/ ' !
4 # #!?
&
$ % & ! 0 +1+0 5
+H H 0 +< 9
0 -
(
$ ? '& ( - +0 <
0
$ ) E'
)
3 3 : 3 3 :/ #
A A. 4 C/ F (% , 1
#
2
' $- +50 K - 0
+H H1 0 6 @ 2*
) 6
28,216.7
.
< -
<- .
-
-
.
< -
< .
9,515.8
4,758.0
F $ D $ ; $ $ % $
4 ($ D $ D$ % $ 4$ 2 $ = $
#
33
A 33
A. /2
B , A% / 2005 2006 2007
15

16. 0# #
"# # 14 # ' # - - 6+
%G
' ' B" %
/F ' ' 1#
= A# # )
& & 1 # #14 ' # )- - 1 #
' # #& # #' ' ' (
C # #& ' @ & &# ..(
1 #
(
# / 5#
B 4 J0 4
# # (/ ' C7
F ' ' ' #;K $ ) . 1 #
$ @ : 90 ,
-0 /
16

18. $ & '(
! % ) -0 55
* 4 +0 .
0 +0 12*-0 14
0 ) 4 6
$ 7 ' ) 1 4-
*0 +0 .
0 +0 12*1 3-
0 ) - 6
$ +8 .: @ H
0 ' $ 2 1/
,< 6$
) 3+
*4
$ +8 .$ %
0 % , A@
@ )
;
$ +8 .$ '
0 2M ( NO 6 $ ) 4 <
*+
+0 3
0 ) 3,
* 3 +0 .+0 5
0H 0
$ ,0 :%
8.
+0+5 +0 <
-
$ 30 $M
8. 7 ( 2( 6 $
<. 0P
0
$ ' ( 9 *3 ,.
) 3 40 .
$ ' &B 2& ) , ,
' 69 * 0 ! ( +0
+0 .
0 E % +, +0 5
0
$ ( @ 28 . ) - <<
3 0 69 * ,
$ C 9 0+/ @
- 2 6
@ 40 / 2 6
$ & D +1 +0 5
0
+< 9
0 -
18

19. (B
6 # 9 +% B ' (9 6+
13.816
12.774 968
537 1.740
. 1.130 0 *#
0 3
11.108 11.108
.-
. - --
#4 #
- .
2006 2007
6 #$ +% 6 # *% ' (
/ #& ' ( 0 A 9B 0# >
5 C 7 #4 # ) -
? * +
6 # # % ' ( " &9
& ) * +
5 . + 7
% 4 #& ' (#
# 00 9 ) * +
6#> # .
& # # 1 #
00 *
19

20. / 1
0 4 C9 ? ). 1 #
$ &B $)*
,-
- 3.4%
$ & 2 6 $ ) 5,
* 2.8% 16.2% Equip.
$ A @ @ 2A @6 $ ) 5+
@ *
$ L 2 A
' 6 $ ) ,+
* Environm.
16.3%
1 '0 4 C9 ? ) 1 # Hydroway
$ ) --
* - A @Q O ; B
@ R
IT
; : ) O@ 61.3%
= ' 9 0 FS
, SHPP
= % & 9 < F
- 4 S
= & 9% +0 4
0
$ ) -3
* , A @Q O ; T
@ R
; : ) O@ 9 )1 #
= ' 9 0 FS
3 224.0
= % & 9 5 F
-4 S
= & 9 +0 4
0
$ ) - -+
* 3 % % SHPPs - RJ 141.2
, A@ )
@ ;
= ' 9 + 0 FS
<
= % & 9 4 F
+5 . S 46.5 50.7
21.9 27.5 82.8
= ) +< 0
* . 12.4
+0 0
-
= % - ,H 0 ) - <
+H-+0 . * 4
2003 2004 2005 2006 2007 2008 (E)
20

21. C4 # 1
1 ? ' 4 ( ( . 5 +7
F 1 ?
$ ' O@ S
$ @ O @ 2
< 6
# # #14 1 ?
$ O@
@ S
$ ' S
$ Q7 & R2
? U - 5 50 6
0 3 H3
% " L ' 4 H' # #14 ( #
4# # C '
& 4 # 4 ( M A #
# @ ?
$ %) %& V :D +0 5 '
0
2 * * % " ' &# %
1 = 3 = # & 1
#
( #& 0 14 (
# @ ' > &#1
M A #
# # 1 ? 5 # C '
7 ' ' #&&
C4 # 1 #F 1 '5 7 # % "
& # 1
% # A > 1# & 4 # #
4 & 1 ' 1 #
0# # # ' &# #& #4
& # 4 #
21

22. 6# $ ) # 0# '24 # C4 $ ) #
< - < .
-
-.
1,527 1,531
140 67
1,387 1,464
150 281
<
548 $ -
381 189 140 .
84
346 359 42 50
. 27 8
2006 2007 4Q06 4Q07 2006 2007 4Q06 4Q07
Net Revenue Deductions Pow er purchase and sector charges
Other operational expenses
( # 1 #' #0 0 * N5 6 + Depreciation
C -6 + 7
N
4 # 00 '
5) -* + C ) * + #& 1 # # " F?
I
7N $ +0 .+0 5 ) 3 ,
0H 0 * 3 S
' # # F' # ) 1 # ' # $ ) +0 3 ) 4 <
0 *+
# A *#
/ 0& C&#1 1 5 .
7# # $ 1 5 .
- 7# D
22

23. B " %$
/F ) #
79.1%
75.1% 84.1%
80.2%
1,097 1,099
<
<
278 302
2006 2007 4Q06 4Q07
B" %
/F
23

24. ; 9 ) # = / # 9
1 ) #
2006 2007 4Q06 4Q07 $
44.3% 41.6%
47.7% 46.0%
(34.6)
(53.9) 614 609 <
<..
165 165
(110.6)
(119.9) 2006 2007 4Q06 4Q07
<
Net Income Net Margin
C A(1 #& 1F ' ' ' ? )
$ ' & W ( '@
E: - 1 #
2 ./
. < +0 . ,5 /
0 , +0 1
0 6S A(1 G # 4 #
4 ' E ?
$ ,3 : & 'S
? $ ( 9 *- <<
) , S
-0
0/ ('
2-5 /
- 3 +0 . - +.
0 < / +0 1
06 $ '&) , ,
* 0 S
$ 9
$ : ) -1 H 0
* 1 00 2*03 H
) - 6
$ : ) -5 H 0
* , 00 @ 2*03 H
) 1 6
A( ?
#
K '? 5 7 '
A 5 7
0
24

25. 0 #'
# 'F
Amount Creditor Maturity Cost Collateral
R$ million 1,296.8 Eletrobrás May 2013 IGP-M + 10% p.a. Receivables
2.4 FunCesp III Sep 2027 IGP-M + 6% p.a. Receivables
= F $ ) #
3.2x
2.0x
1.4x
0.7x 0.6x 0.6x
1,406
1,254
1,096
676 682 661
2002 2003 2004 2005 2006 2007
Net Debt Net Debt / EBITDA
0 % ( * *
- O ) - -1 #
$ 40
$ % -0
0/ ('
25

26. 0 ;# 9 A
>
0 14 (
#
) # E E -E E
/// 30
="% % -. . .
24 0 ;>
# -- .<
3 +5 4
. , .4
0 +3 4
5 +. +
- -- <4
-
/ 1 2+ -
3 6 2.
46 2-4
- 6 2,
46 2<0
- 6 210
3 6
= ; C4 2+ ,
. 6 21-
- 6 250
- 6 24,
- 6 25<
- 6 2-4
. 6
= %1# H # 25 0
-0 6 213
3 6 25,
3 6 205
< 6 2+ 0
< 6 24 3
-. 6
/ # "C
1 2 +<
+- 6 2 -
++0 6 211
- 6 25
46 : 2 1<
+3 6
F ' ' '/
# 23 .
.. 6 00 2+<3
, 6 23 4
-- 6 23 0
-- 6 20 ,
15 6
; ;>
# 5 7 5 7 5 -7 5
. 7
; 0 -. . . -- --
26

27. 0 4
# # 6#
% " L:/ # 4 C/ F (" ' '% , 1
#
2
' - +50 K - 0
+ 1 06 )*
160
9.121
150
< -
140 .- 3.583
130 <
5.930
< -
120
110 1.698
<
100 3.440
90
1.628 5.538
80 4.232
Dec-06 Feb-07 Apr-07 Jun-07 Aug-07 Oct-07 Dec-07
1.813
GETI3 GETI4 Ibovespa IEE
.
4 # #!?
& OS CS
$ % & ! 0 +1+0 5
+H H 0 +< 9
0-
(
$ ? '& ( - +0 .
0
$ D + ) E'
)
$ M7 ( 2( 6
27

28. 0# #
6 # > # % ' (
' 1 - AA #' D # 5. +#&
' 4 (7 ' AA M A #
# 5 +#& '
4 ( 7
B " %# )
/F & 1 # > 5)
1 #7
= / # # )
1 & 1 # > #14 '#
5) 1 #7
A(# #& #& = / #1 & 1#' ' '
# & '
/
# # ) 1 #
K '? 5 7 '
A 5 7
0
28