Detailed below are estimates of future commitments under these arrangements:



	Year 1		Year 2		Year 3		Year 4		Year 5		Thereafter		Total
Power purchase (i)	$	46,536	$	10,896	$	11,114	$	11,338	$	11,566	$	191,208	$	282,658
Gas supply and service agreements (ii)	77,658		51,349		27,672		24,422		22,424		48,313		251,838
Service agreements	43,732		39,093		38,451		37,463		40,737		312,559		512,035
Capital projects	67,575		1,663		196		7,330		—		—		76,764
Operating leases	7,629		7,154		7,096		7,076		6,776		178,583		214,314
Total	$	243,130	$	110,155	$	84,529	$	87,629	$	81,503	$	730,663	$	1,337,609


(i)	Power purchase: APUC’s electric distribution facilities have commitments to purchase physical quantities of power for load serving requirements. The commitment amounts included in the table above are based on market prices as of December 31, 2018. However, the effects of purchased power unit cost adjustments are mitigated through a purchased power rate-adjustment mechanism.


(ii)	Gas supply and service agreements: APUC’s gas distribution facilities and thermal generation facilities have commitments to purchase physical quantities of natural gas under contracts for purposes of load serving requirements and of generating power.