PROPERTY, PLANT AND EQUIPMENT (Tables)

6 Months Ended

Jun. 30, 2016

Schedule of Property, Plant and Equipment [Table Text Block]

		June 30,			December 31,
		2016			2015
Land	$	3,074,052		$	3,074,052
Power production plant		159,876,162			159,800,893
Grant proceeds for power plants		(52,965,236	)		(52,965,236	)
Wells		67,621,167			67,621,167
Grant proceeds for wells		(3,464,555	)		(3,464,555	)
Furniture and equipment		3,743,969			3,668,984
		177,885,559			177,735,305
Less: accumulated depreciation		(34,134,263	)		(31,021,494	)
		143,751,296			146,713,811
Construction in progress		23,115,708			21,022,981
	$	166,867,004		$	167,736,792

Schedule of Depreciation Expense [Table Text Block]

		June 30,
		2016		2015
Three months ended	$	1,544,669	$	1,561,001
Six months ended		3,112,769		3,111,001

Schedule of Changes in Construction in Progress [Table Text Block]

		For the Six Months		For the Year
		Ended June 30,		Ended December
		2016		31, 2015
Beginning balances	$	21,022,981	$	15,652,722
Development/construction		2,092,727		5,370,259
Transfers into production		-		-
Ending balances	$	23,115,708	$	21,022,981

Schedule of Changes in Construction in Progress, by Project [Table Text Block]

		June 30,		December 31,
		2016		2015
Raft River, Idaho:
Unit I, well improvements	$	873,125	$	105,160
Unit I, plant improvements		40,624		-
Unit II, power plant, substation and transmission lines		750,493		750,493
Unit II, well construction		2,148,980		2,146,531
		3,813,222		3,002,184
San Emidio, Nevada:
Unit II, power plant, substation and transmission lines		433,672		426,942
Unit II, well construction		3,812,491		3,798,563
		4,246,163		4,225,505
Neal Hot Springs, Oregon:
Power plant and facilities		78,779		50,297
Well construction		339,103		314,360
		417,882		364,657
WGP Geysers, California:
Power plant and facilities		325,989		325,989
Well construction		8,378,263		7,690,748
		8,704,252		8,016,737
Crescent Valley, Nevada:
Well construction		1,325,160		1,228,888
El Ceibillo, Republic of Guatemala:
Well Construction		4,600,529		4,176,510
Plant and facilities		8,500		8,500
		4,609,029		4,185,010
	$	23,115,708	$	21,022,981