Exhibit 99(a)

Examples of Wholesale Energy, Fuel and Emission Allowance Price Fluctuations

2004 through 2008

Wholesale Energy:

PJM West Hub* Power Price - $/MWh

Year	High		Month	Low			Month
2004	$	181.66	December	$	0.00	**	Jan., June, July, Aug., Sept., Oct.
2005	$	315.65	July	$	0.00	**	Jan., April, May, June, July, Sept.
2006	$	769.90	August	$	0.00	**	April, May, June, July, Aug., Nov., Dec.
2007	$	571.60	August	$	0.00	**	May, June, July, Sept.
2008	$	475.58	June	$	0.00	**	May, July, Aug., Sept.

*      A common trading hub for PJM.

**    Occurs during times of low demand for electricity when generation levels of generating units are reduced to their normal minimums.

Mid-C* Power Price - $/MWh

Year	High		Month	Low			Month
2004	$	65.06	July	$	10.21		June
2005	$	139.76	December	$	7.68		May
2006	$	189.87	July	$	(2.00)	**	May
2007	$	197.79	July	$	0.86		March
2008	$	101.29	April	$	(7.50)	**	June

*      A common trading hub for Northwestern U.S.

**    Occurs when generation levels from hydroelectric units exceed demand due to excess water runoff.

Fuel:

NYMEX Coal (1% sulfur content, 12,000 Btu) Price - $/ton

Year	High		Month	Low		Month
2004	$	63.00	August	$	39.67	January
2005	$	62.75	September	$	51.10	June
2006	$	57.75	February	$	37.50	November
2007	$	56.80	November	$	38.75	January
2008	$	143.25	July	$	56.17	January

NYMEX Natural Gas Price - $/million Btu

Year	High		Month	Low		Month
2004	$	8.73	November	$	4.57	September
2005	$	15.38	December	$	5.83	January
2006	$	10.63	January	$	4.20	September
2007	$	9.90	May	$	5.20	September
2008	$	13.69	August	$	5.28	December

Residual Oil (1% sulfur content) Price @ NY Harbor - $/barrel

Year	High		Month	Low		Month
2004	$	35.38	October	$	22.12	December
2005	$	54.38	October	$	26.88	January
2006	$	54.25	April	$	35.00	October
2007	$	72.52	December	$	37.23	January
2008	$	119.70	July	$	28.40	December

Sulfur Dioxide Emission Allowances:

SO2 Emission Allowance Price - $/allowance

Year	High		Month	Low		Month
2004	$	730	November	$	210	January
2005	$	1,610	December	$	640	January
2006	$	1,598	January	$	445	November
2007	$	715	June	$	405	January
2008	$	535	January	$	88	July