China Hydroelectric 20-F 2009 FY Annual report (foreign)

Exhibit 15.1

Calculation of Effective Tariff and Effective Utilization Rate

		Total		Total		Installed							Effective		Effective
		Revenues		Electricity		Capacity			Number of		Tax		Tariff**		Utilization
		(RMB)		Sold (kWh)		(MW)			days		Rate*		(RMB)		Rate*** (%)
Our Company	the year ended Dec 31, 2007		19,498,009		108,303,945		33.0			N/A		N/A		0.18		56.6
	the year ended Dec 31, 2008		110,076,549		333,964,005		271.0			N/A		N/A		0.33		29.2
	the year ended Dec 31, 2009		247,120,130		798,945,372		376.6			N/A		N/A		0.34		30.8
Binglangjiang I	the year ended Dec 31, 2006		16,472,000		106,646,530		21.0			365		1.06		0.16		58.0
	the period ended Apr 24, 2007		4,433,000		23,495,595		21.0			114		1.06		0.20		40.9
	the period from Apr 25 to Dec 31, 2007		12,988,764		88,545,602		21.0			251		1.06		0.16		70.0
	the year ended Dec 31, 2007		17,421,764		112,041,197		21.0			365		1.06		0.17		60.9
	the year ended Dec 31, 2008		19,410,025		117,278,061		21.0			366		1.06		0.18		63.6
	the year ended Dec 31, 2009		16,556,208		95,514,582		21.0			365		1.06		0.18		51.9
Binglangjiang II	the year ended Dec 31, 2009		3,706,529		29,141,455		20.0			118		1.06		0.13		51.5
Liyuan	the period from May 21 to Dec 31, 2007		5,405,584		19,758,343		12.0			225		1.06		0.29		30.5
	the year ended Dec 31, 2007		5,405,584		19,758,343		12.0			365		1.06		0.29		18.8
	the year ended Dec 31, 2008		6,866,482		25,098,176		12.0			366		1.06		0.29		23.8
	the year ended Dec 31, 2009		6,411,614		23,435,555		12.0			365		1.06		0.29		22.3
Yingchuan	the year ended Dec 31, 2006		38,925,000		97,116,588		40.0			365		1.06		0.43		27.7
	the year ended Dec 31, 2007		42,998,000		102,700,957		40.0			365		1.06		0.44		29.3
	the period from Jan 31 to Dec 31, 2008		37,594,669		90,254,137		40.0			336		1.06		0.44		28.0
	the year ended Dec 31, 2008		37,659,160		90,768,127		40.0			366		1.06		0.44		25.8
	the year ended Dec 31, 2009		44,925,331		107,225,642		40.0			365		1.06		0.44		30.6
Wuliting	the year ended Dec 31, 2007		27,532,000		65,423,294		42.0			365		1.06		0.45		17.8
	the period from Jan 31 to Dec 31, 2008		29,946,906		69,232,680		42.0			336		1.06		0.46		20.4
	the year ended Dec 31, 2008		30,371,102		70,224,000		42.0			366		1.06		0.46		19.0
	the year ended Dec 31, 2009		40,143,784		92,554,440		42.0			365		1.06		0.46		25.2
Jiulongshan	the year ended Dec 31, 2009		27,124,666		73,964,924		37.6	(1)		280		1.17		0.43		20.0
Zhougongyuan	the year ended Dec 31, 2009		1,197,109		2,934,316		16.0	(1)		61		1.17		0.48		12.5
Ruiyang	the year ended Dec 31, 2007		31,513,675		68,645,855		32.0			365		1.06		0.49		24.5
	the year ended Dec 31, 2008		22,862,842		51,237,120		32.0			366		1.06		0.47		18.2
	the period from Jan1 to Aug 19,2009		24,167,675		55,261,800		32.0			231		1.06		0.46		31.1
	the period from Aug 20 to Dec 31, 2009		3,109,994		7,191,974		32.0			134		1.06		0.46		6.1

		Total		Total		Installed						Effective		Effective
		Revenues		Electricity		Capacity		Number of		Tax		Tariff**		Utilization
		(RMB)		Sold (kWh)		(MW)		days		Rate*		(RMB)		Rate*** (%)
	The year ended Dec 31,2009		27,277,669		62,453,774		32.0		365		1.06		0.46		22.3
Shapulong	the period from Jan 1 to Dec 24, 2007		18,313,000		43,292,057		25.0		358		1.06		0.45		20.2
	the year ended Dec 31, 2008		17,723,482		42,308,157		25.0		366		1.06		0.44		19.3
	the period from Jan 1 to Aug 2,2009		9,702,244		22,279,828		25.0		215		1.06		0.44		17.3
	the period from Aug 3 to Dec 31, 2009		7,581,398		18,351,068		25.0		150		1.06		0.44		20.0
	the year ended Dec 31, 2009		17,283,642		40,630,896		25.0		365		1.06		0.44		18.6
Banzhu	the year ended Dec 31, 2006		55,561,000		180,461,022		45.0		365		1.17		0.36		45.8
	the year ended Dec 31, 2007		52,029,000		169,092,862		45.0		365		1.17		0.36		42.9
	the year ended Dec 31, 2008		47,872,768		155,536,410		45.0		366		1.17		0.36		39.3
	the year ended Dec 31, 2009		38,972,232		126,659,753		45.0		365		1.17		0.36		32.1
Wangkeng	the year ended Dec 31, 2006		40,242,000		151,882,677		40.0		365		1.17		0.31		43.3
	the year ended Dec 31, 2007		31,475,000		118,792,231		40.0		365		1.17		0.31		33.9
	the year ended Dec 31, 2008		34,237,226		129,217,917		40.0		366		1.17		0.31		36.8
	the year ended Dec 31, 2009		28,713,380		108,369,852		40.0		365		1.17		0.31		30.9
Yuanping	the year ended Dec 31, 2007		6,274,209		30,071,595		16.0		365		1.06		0.22		21.5
	the year ended Dec 31, 2008		8,004,678		38,393,478		16.0		366		1.06		0.22		27.3
	the year ended Dec 31, 2009		12,624,433		44,316,824		16.0		365		1.06		0.27		31.6
Yuheng	the year ended Dec 31,2007		9,384,000		54,955,750		30.0		228		1.06		0.18		33.5
	the period from Jan 1 to Oct 20, 2008		14,154,407		82,893,211		30.0		294		1.06		0.18		39.2
	the period from Oct 21 to Dec 31, 2008		2,180,392		8,090,245		30.0		72		1.06		0.29		15.6
	the year ended Dec 31, 2008		16,334,799		90,983,456		30.0		365		1.06		0.19		34.6
	the year ended Dec 31, 2009		16,053,453		69,284,988		30.0		365		1.06		0.29		26.4
	Weighted Average Utilization Rate for Consolidated Number 2008****														29.2	%
	Weighted Average Utilization Rate for Consolidated Number 2009****														30.8	%
	Weighted Average Utilization Rate for whole year Number 2008****														33.7	%

	Total	Total	Installed			Effective	Effective
	Revenues	Electricity	Capacity	Number of	Tax	Tariff**	Utilization
	(RMB)	Sold (kWh)	(MW)	days	Rate*	(RMB)	Rate*** (%)
Weighted Average Utilization Rate for whole year Number 2009****								30.2	%

*	Tax rate = 1+VAT (VAT is 6% or 17%, as applicable)
**	Effective Tariff = Total Revenues / Total Electricity Sold *tax rate
***	Effective Utilization Rate=Total Electricity Sold / (Installed Capacity *1000*24*Number of Days)*100
****	Weighted Average Utilization Rate = (Total Sold KWh)/(Total Installed Capacity), with/without Shapulong
*****	Consolidated Utilization Rate=Total Electricity Sold/SUM(Installed Capacity(MW)*1000*24*Number of Days)*100
(1)	Jiulongshan and Zhougongyuan projects were split from Zhougongyuan projects in December 2009. The total installed capacity for Jiulongshan was 37.6 MW and for Zhougongyuan 16.0 MW.