Huaneng Power International : POWER GENERATION WITHIN CHINA DECREASES BY 2.13% FOR THE YEAR OF 2016

To: Business Editor January 09 2017

（For immediate release）

HUANENG POWER INTERNATIONAL, INC. POWER GENERATION WITHIN CHINA DECREASES BY 2.13% FOR THE YEAR OF 2016

(Beijing, China, January 09, 2017) Huaneng Power International, Inc. ("HPI" or the "Company") (NYSE: HNP; HKEx: 902; SSE: 600011) today announced its power generation for the year of 2016.

According to the preliminary statistics of the Company, for the fourth quarter of 2016, the Company's total power generation by its power plants within China amounted to 81.097 billion kWh on consolidated basis, representing an increase of 2.02% over the same period last year, and the total electricity sold by the Company amounted to 76.064 billion kWh, representing an increase of 1.57% over the same period last year. For the whole year of 2016, the Company's total power generation by its power plants within China amounted to 313.690 billion kWh on consolidated basis , representing a decrease of 2.13% over the same period last year, and the total electricity sold by the Company amounted to 295.800 billion kWh, representing a decrease of 2.05% over the same period last year. For the whole year of 2016, the Company's average on-grid electricity settlement price for its power plants within China amounted to RMB396.60 per MWh, representing a decrease of 10.53% over the same period last year.

The decrease in the Company's power generation for the year of 2016 was mainly attributable to the following reasons: (1) the installed capacity growth outpaced the growth of the nationwide power consumption while the utilization hours of coal-fired power generation units saw a year-on-year fall;

(2) the growth of the Company's installed capacity was below the average of its regional peers; and (3) the launch of new nuclear power generators in the areas including Liaoning, Guangdong, Fujian and Hainan had a relatively significant impact on the output of the coal-fired power generation units in these regions.

The power generation (in billion kWh) by each of the Company's domestic power plants are listed below:

Domestic Power Plant	Power Generation				Electricity sold
	October to December 2016	Change	January to December 2016	Change	October to December 2016	Change	January to December 2016	Change
Liaoning Province	5.539	10.33%	19.824	-2.21%	5.215	10.71%	18.628	-2.11%
Coal-fired	5.443	10.52%	19.476	-2.28%	5.120	10.91%	18.284	-2.18%
Dalian	1.364	-10.53%	5.656	-4.47%	1.280	-10.82%	5.312	-4.61%
Dandong	0.951	10.84%	2.920	-4.26%	0.901	10.15%	2.766	-4.57%
Yingkou	2.215	32.08%	7.872	-0.04%	2.084	34.44%	7.364	0.39%
Yingkou Co-generation	0.913	5.26%	3.028	-1.84%	0.855	5.16%	2.841	-1.65%
Wind-power	0.088	9.40%	0.297	2.75%	0.087	8.09%	0.295	2.60%
Wafangdian Wind Power	0.033	22.77%	0.098	4.37%	0.033	22.80%	0.097	4.54%
Changtu Wind Power	0.054	0.69%	0.199	1.45%	0.054	0.84%	0.198	1.67%
Hydro-power	0.002	-83.07%	0.034	-32.36%	0.002	-83.10%	0.034	-32.41%
Suzihe Hydropower	0.002	-83.07%	0.034	-32.36%	0.002	-83.10%	0.034	-32.41%
PV	0.0057	-	0.0160	-	0.0057	-	0.0157	-
Dandong PV	0.0027	-	0.0090	-	0.0027	-	0.0086	-
Yingkou Co-generation PV	0.0030	-	0.0071	-	0.0030	-	0.0071	-
Inner Mongolia	0.063	33.22%	0.218	12.82%	0.062	33.30%	0.216	12.84%
Wind-power	0.063	33.22%	0.218	12.82%	0.062	33.30%	0.216	12.84%
Huade Wind Power	0.063	33.22%	0.218	12.82%	0.062	33.30%	0.216	12.84%
Heibei Province	2.849	1.65%	13.063	3.54%	2.680	1.28%	12.290	3.88%
Coal-fired	2.805	1.31%	12.931	3.29%	2.639	0.95%	12.169	3.65%
Shang'an	2.805	1.31%	12.931	3.29%	2.639	0.95%	12.169	3.65%
Wind-power	0.036	6.78%	0.116	19.68%	0.034	6.09%	0.109	19.75%
Kangbao Wind Power	0.036	6.78%	0.116	19.68%	0.034	6.09%	0.109	19.75%
PV	0.008	-	0.016	-	0.0071	-	0.0121	-
Kangbao PV	0.0078	-	0.0157	-	0.0071	-	0.0121	-
Gansu Province	2.564	0.86%	9.716	37.76%	2.569	6.00%	9.406	39.96%
Coal-fired	2.340	-0.55%	8.443	40.24%	2.354	4.82%	8.185	42.72%
Pingliang	2.340	-0.55%	8.443	40.24%	2.354	4.82%	8.185	42.72%
Wind-power	0.224	18.24%	1.273	23.15%	0.215	20.97%	1.221	23.91%
Jiuquan Wind Power	0.068	-7.40%	0.410	-6.32%	0.064	-6.64%	0.393	-4.87%
Jiuquan Wind Power II	0.066	-15.20%	0.443	-0.24%	0.064	-12.54%	0.430	-0.36%
Yumen Wind Power	0.029	-20.84%	0.169	12.61%	0.028	-21.33%	0.161	14.19%
Yigang Wind Power	0.061	4704.82%	0.251	19611.99%	0.059	-	0.237	-

Domestic Power Plant	Power Generation				Electricity sold
	October to December 2016	Change	January to December 2016	Change	October to December 2016	Change	January to December 2016	Change
Beijing	1.943	-16.12%	7.543	-6.67%	1.786	-16.69%	7.006	-6.49%
Coal-fired	1.038	-5.90%	3.406	-13.19%	0.904	-5.69%	2.965	-13.47%
Beijing Co-generation (Coal-fired)	1.038	-5.90%	3.406	-13.19%	0.904	-5.69%	2.965	-13.47%
Combined Cycle	0.905	-25.48%	4.136	-0.54%	0.882	-25.58%	4.041	-0.61%
Beijing Co-generation (Combined Cycle)	0.905	-25.48%	4.136	-0.54%	0.882	-25.58%	4.041	-0.61%
Tianjin	2.123	5.26%	7.253	-1.88%	2.002	4.94%	6.843	-1.91%
Coal-fired	1.569	13.56%	5.280	-2.71%	1.462	13.65%	4.918	-2.74%
Yangliuqing Co-generation	1.569	13.56%	5.280	-2.71%	1.462	13.65%	4.918	-2.74%
Combined Cycle	0.554	-12.94%	1.973	0.35%	0.540	-13.10%	1.924	0.28%
Lingang Combined Cycle	0.554	-12.94%	1.973	0.35%	0.540	-13.10%	1.924	0.28%
Shanxi Province	2.102	-17.16%	10.707	12.53%	1.988	-5.76%	10.067	17.09%
Coal-fired	1.210	-15.51%	8.161	-2.55%	1.121	-15.58%	7.594	-2.85%
Yushe	0.462	-8.75%	2.642	-3.92%	0.428	-8.72%	2.439	-3.99%
Zuoquan	0.748	-19.11%	5.519	-1.89%	0.694	-19.32%	5.155	-2.31%
Combined Cycle	0.892	-19.24%	2.546	123.53%	0.866	10.94%	2.473	216.65%
Dongshan Combined Cycle	0.892	-19.24%	2.546	123.53%	0.866	10.94%	2.473	216.65%
Shandong Province	9.943	-3.19%	41.354	-2.31%	9.354	-3.17%	38.928	-2.34%
Coal-fired	9.943	-3.19%	41.354	-2.31%	9.354	-3.17%	38.928	-2.34%
Dezhou	2.969	-14.26%	13.749	-4.44%	2.779	-14.22%	12.885	-4.36%
Jining	1.407	12.49%	4.733	-3.27%	1.304	12.20%	4.371	-4.13%
Xindian	0.940	15.94%	3.214	1.77%	0.883	16.35%	3.005	1.95%
Weihai	2.455	8.82%	10.179	-6.56%	2.341	9.06%	9.721	-6.37%
Rizhao Phase II	1.848	-6.54%	7.877	5.04%	1.751	-7.00%	7.476	5.01%
Zhanhua Co-generation	0.323	-36.91%	1.602	6.59%	0.295	-37.08%	1.469	6.59%
Henan Province	6.890	26.44%	21.452	6.23%	5.692	10.20%	19.453	2.86%
Coal-fired	6.871	26.10%	21.434	6.14%	5.68	9.96%	19.441	2.80%
Qinbei	4.793	-1.59%	17.429	-6.85%	4.544	-1.77%	16.514	-6.70%
Luoyang Co-generation	1.034	78.25%	2.841	91.30%	0.972	80.00%	2.657	119.33%
Juoyang Yangguang	0.622	-	0.742	-	0.000	-	0.106	-
Mianchi Co-generation	0.422	-	0.422	-	0.164	-	0.164	-
Wind-power	0.019	-	0.019	-	0.012	-	0.012	-
Zhumadian Wind Power	0.019	-	0.019	-	0.012	-	0.012	-

Domestic Power Plant	Power Generation				Electricity sold
	October to December 2016	Change	January to December 2016	Change	October to December 2016	Change	January to December 2016	Change
Jiangsu Province	11.191	9.21%	43.021	2.33%	10.653	9.00%	40.88	2.08%
Coal-fired	9.997	11.62%	38.925	4.31%	9.482	11.47%	36.866	4.11%
Nantong	1.506	15.37%	6.129	-0.62%	1.427	14.82%	5.801	-1.23%
Nanjing	0.687	19.51%	3.001	9.68%	0.647	19.67%	2.827	9.35%
Taicang	2.760	22.12%	10.507	4.22%	2.608	21.71%	9.951	4.02%
Huaiyin	1.361	9.76%	5.570	-4.17%	1.305	10.83%	5.277	-4.09%
Jinling (Coal-fired)	3.420	1.23%	12.766	8.85%	3.272	1.31%	12.196	9.06%
Suzhou Co-generation	0.189	-3.13%	0.784	-0.67%	0.165	-4.54%	0.687	-2.06%
Nanjing Co-generation	0.074	-	0.168	-	0.058	-	0.127	-
Combined Cycle	1.016	-14.62%	3.517	-18.05%	0.998	-14.45%	3.454	-17.89%
Jinling (Combined Cycle)	0.473	-32.20%	1.717	-33.49%	0.463	-32.07%	1.680	-33.40%
Jinling Combined Cycle Co-generation	0.543	10.32%	1.801	5.26%	0.535	10.33%	1.774	5.33%
Wind-power	0.178	74.69%	0.579	32.99%	0.173	72.41%	0.559	31.00%
Qidong Wind Power	0.119	50.22%	0.394	15.80%	0.117	49.93%	0.387	15.90%
Rudong Wind Power	0.031	36.35%	0.101	6.23%	0.030	36.57%	0.098	6.06%
Rudong Offshore Wind Power	0.002	-	0.002	-	-	-	-	-
Liuhe Wind Power	0.001	-	0.001	-	-	-	-	-
Tongshan Wind Power	0.026	-	0.082	-	0.025	-	0.074	-
Shanghai	4.341	9.67%	18.138	0.06%	4.108	9.85%	17.181	0.01%
Coal-fired	4.072	9.16%	16.489	0.84%	3.843	9.28%	15.572	0.82%
Shidongkou First	1.210	-10.00%	4.971	-1.76%	1.129	-10.49%	4.649	-1.74%
Shidongkou Second	1.336	28.76%	5.385	2.53%	1.268	29.44%	5.106	2.44%
Shidongkou Power	1.526	13.25%	6.133	1.56%	1.446	13.33%	5.817	1.52%
Combined Cycle	0.269	18.08%	1.649	-7.11%	0.265	18.84%	1.609	-7.17%
Shanghai Combined Cycle	0.269	18.08%	1.649	-7.11%	0.265	18.84%	1.609	-7.17%
Chongqing	2.734	-3.43%	10.016	-6.43%	2.554	-2.87%	9.314	-6.04%
Coal-fired	2.169	-13.89%	8.154	-16.51%	2.003	-13.91%	7.501	-16.68%
Luohuang	2.169	-13.89%	8.154	-16.51%	2.003	-13.91%	7.501	-16.68%
Combined Cycle	0.565	81.60%	1.862	98.50%	0.551	82.07%	1.813	99.02%
Liangjiang Combined Cycle	0.565	81.60%	1.862	98.50%	0.551	82.07%	1.813	99.02%
Zhejiang Province	6.486	2.29%	24.711	0.15%	6.239	2.65%	23.705	0.50%
Coal-fired	6.286	2.09%	24.171	-0.92%	6.042	2.49%	23.177	-0.58%
Yuhuan	4.899	-1.52%	18.469	-2.57%	4.711	-1.16%	17.715	-2.25%
Changxing	1.387	17.46%	5.702	4.85%	1.331	17.89%	5.462	5.27%