3. NET INVESTMENT IN SALES-TYPE LEASES

Under sales-type leases, Xi’an TCH leases the following systems: (i) TRT systems to Zhangzhi (13 year term); (ii) CHPG systems to Jing Yang Shengwei (5 year term); (iii) BMPG systems to Pucheng Phase I and II (15 and 11 year terms, respectively); (iv) BMPG systems to Shenqiu Phase I (11 year term); (v) Shenqiu Phase II (9.5 year term); (vi) WHPG system to Zhongbao (9 year term); (vii) WHPG systems to Jitie (24 year term); and (viii) two BPRT systems to Shanxi Datong (30 year term). In addition, as of March 31, 2014, Erdos TCH leased power and steam generating systems from waste heat from metal refining to Erdos (five systems) for a term of 20 years. The components of the net investment in sales-type leases as of March 31, 2014 and December 31, 2013 are as follows:

	2014		2013
Total future minimum lease payments receivable	$	544,714,357	$	560,187,391
Less: executory cost		(131,019,483)		(134,447,605)
Less: unearned interest income		(233,333,440)		(241,234,839)
Net investment in sales - type leases		180,361,434		184,504,947
Current portion		8,353,510		9,063,386
Noncurrent portion	$	172,007,924	$	175,441,561

As of March 31, 2014, the future minimum rentals to be received on non-cancelable sales-type leases by years are as follows:

2014	$	41,507,794
2015		39,108,706
2016		39,108,706
2017		39,108,706
2018		38,970,724
Thereafter		346,909,721
Total	$	544,714,357