Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2019		Dec. 31, 2018
Current assets:
Cash and cash equivalents		$ 71,173		$ 98,802
Restricted cash and cash equivalents (primarily related to VIEs)		81,937		78,693
Receivables:
Trade (primarily related to VIEs)		154,525		137,581
Other		22,048		19,393
Inventories		34,949		45,024
Costs and estimated earnings in excess of billings on uncompleted contracts	[1]	38,365		42,130
Prepaid expenses and other		12,667		51,441
Total current assets		415,664		473,064
Investment in unconsolidated companies		81,140		71,983
Deposits and other		38,284		18,209
Deferred income taxes		129,510		113,760
Property, plant and equipment, net		1,971,415		1,959,578
Construction-in-process		376,555		261,690
Operating leases right of use		17,405		0
Finance leases right of use		14,161		0
Deferred financing and lease costs, net		0		3,242
Intangible assets, net		186,220		199,874
Goodwill		20,140		19,950
Total assets	[2]	3,250,494	[3]	3,121,350	[4]
Current liabilities:
Accounts payable and accrued expenses		141,857		116,362
Short term revolving credit lines with banks (full recourse)		40,550		159,000
Commercial paper		50,000		0
Billings in excess of costs and estimated earnings on uncompleted contracts		2,755		18,402
Current portion of long-term debt:
Senior secured notes		24,473		33,493
Other loans		34,458		29,687
Full recourse		76,572		5,000
Operating lease liabilities		2,743		0
Finance lease liabilities		3,068		0
Total current liabilities		376,476		361,944
Long-term debt, net of current portion:
Senior secured notes (less deferred financing costs of $6,317 and $7,434, respectively)		339,336		375,337
Other loans (less deferred financing costs of $10,482 and $9,354, respectively)		317,395		320,242
Senior unsecured bonds (less deferred financing costs of $675 and $758, respectively)		286,453		303,575
Other loans (less deferred financing costs of $1,519 and $921, respectively)		68,747		41,579
Operating lease liabilities		14,008		0
Finance lease liabilities		11,209		0
Liability associated with sale of tax benefits		123,468		69,893
Deferred lease income		1,201		48,433
Deferred income taxes		97,126		61,323
Liability for unrecognized tax benefits		14,643		11,769
Liabilities for severance pay		18,751		17,994
Asset retirement obligation		50,183		39,475
Other long-term liabilities		6,838		16,087
Total liabilities		1,725,834		1,667,651
Commitments and contingencies (Note 22)
Redeemable noncontrolling interest		9,250		8,603
Equity:
Common stock, par value $0.001 per share; 200,000,000 shares authorized; 51,031,652 and 50,699,781 issued and outstanding as of December 31, 2019 and December 31, 2018, respectively		51		51
Additional paid-in capital		913,150		901,363
Retained earnings		487,873		422,222
Accumulated other comprehensive loss		(8,654)		(3,799)
Total stockholders' equity attributable to Company's stockholders		1,392,420		1,319,837
Noncontrolling interest		122,990		125,259
Total equity		1,515,410		1,445,096
Total liabilities, redeemable noncontrolling interest and equity		$ 3,250,494		$ 3,121,350

[1] Contract assets and contract liabilities are presented as "Costs and estimated earnings in excess of billings on uncompleted contracts" and "Billings in excess of costs and estimated earnings on uncompleted contracts", respectively, on the consolidated balance sheets. The contract liabilities balance at the beginning of the year was fully recognized as product revenues during the years ended December 31, 2019 and 2018 as a result of performance obligations satisfied.

[2] Electricity segment assets include goodwill in the amount of $20.1 million, $20.0 million and $7.6 as of December 31, 2019, 2018 and 2017, respectively. No goodwill is included in the Product and Energy Storage and Management Services segment assets as of December 31, 2019 and 2018. Energy Storage and Management Services segment assets as December 31, 2017 include goodwill in the amount of $13.5 million. For further information on goodwill, see Note 9 - Intangible assets and goodwill to the consolidated financial statements.

[3] Including unconsolidated investments 81,140 — — 81,140

[4] Including unconsolidated investments 34,084 — — 34,084