XML 47 R31.htm IDEA: XBRL DOCUMENT v3.22.0.1
Commitment, Contingencies And Guarantees (Tables)
 12 Months Ended
Dec. 31, 2021
Long-term Purchase Commitment [Line Items]  
Unrecorded Unconditional Purchase Obligations Disclosure
The following is a schedule of unconditional purchase obligations required under the power purchase, transmission services and natural gas transportation and storage agreements (in thousands):
Power purchase and transmission services agreements (a)
Natural gas transportation and storage agreements
2022$23,985 $143,750 
2023$11,678 $119,923 
2024$2,738 $82,428 
2025$— $58,669 
2026$— $36,503 
Thereafter$— $60,429 
____________________
(a)    This schedule does not reflect renewable energy PPA obligations since these agreements vary based on weather conditions.
Schedule of Unit Contingent Capacity The unit-contingent capacity amounts from Wygen III and Neil Simpson II are as follows:
Contract YearsTotal Contract CapacityContingent Capacity Amounts on Wygen IIIContingent Capacity Amounts on Neil Simpson II
2020-202215 MW7 MW8 MW
2022-202315 MW8 MW7 MW
2023-202810 MW5 MW5 MW
Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity
As of December 31, 2021, scheduled maturities of operating lease payments to be received in future years were as follows (in thousands):
Operating Leases
2022$2,173 
20232,204 
20242,125 
20252,070 
20261,881 
Thereafter51,233 
Total lease receivables$61,686 
Schedule of Guarantor Obligations To the extent liabilities are incurred as a result of activities covered by these guarantees, such liabilities are included in our Consolidated Balance Sheets.
See Note 8 for additional information on our off-balance sheet Letters of Credit commitment.

We had the following guarantees in place as of (in thousands):
Maximum Exposure at
Nature of GuaranteeDecember 31, 2021
Indemnification for reclamation/surety bonds$55,867 
Guarantees supporting business transactions$370,558 
$426,425 
Transmission Service Agreement  
Long-term Purchase Commitment [Line Items]  
Long-term Purchase Commitment
Through our subsidiaries, we have the following significant long-term power purchase contracts and transmission services agreement with non-affiliated third-parties:

SubsidiaryContract TypeCounterpartyFuel TypeQuantity (MW)Expiration Date
Colorado Electric (a)
PPAPRPAWind60May 31, 2030
Colorado ElectricPPAPRPACoal25June 30, 2024
Colorado ElectricPPATC Colorado Solar, LLCSolar200
Pending Completion (b)
South Dakota ElectricPPAPacifiCorpCoal50December 31, 2023
South Dakota Electric (c)
Transmission Services AgreementPacifiCorpN/A50December 31, 2023
South Dakota ElectricPPAPRPAWind12September 30, 2029
South Dakota ElectricPPAFall River Solar, LLCSolar80
Pending Completion (d)
Wyoming Electric (e)
PPAHappy JackWind30September 3, 2028
Wyoming Electric (f)
PPASilver SageWind30September 30, 2029
____________________
(a)    Colorado Electric sells the wind energy purchased under this PPA to City of Colorado Springs as discussed below.
(b)    On January 31, 2022, TC Colorado Solar, LLC (TC Solar) provided termination notice of the PPA to Colorado Electric. Colorado Electric has disputed TC Solar’s right to termination and pursuant to the agreement, has initiated discussions with TC Solar. This agreement relates to a new solar facility to be constructed and would expire 15 years after construction completion.
(c)    This is a firm point-to-point transmission service agreement providing the ability to deliver a maximum of 50 MW of capacity and associated energy.
(d)    This agreement relates to a new solar facility currently being constructed and will expire 20 years after construction completion, which is expected by the end of 2022.
(e)    Under a separate intercompany PSA, Wyoming Electric sells 50% of the facility output to South Dakota Electric.
(f)    Under a separate intercompany PSA, Wyoming Electric sells 67% of the facility output to South Dakota Electric.
Power purchased  
Long-term Purchase Commitment [Line Items]  
Long-term Purchase Commitment
Costs under these agreements for the years ended December 31 were as follows (in thousands):
SubsidiaryContract TypeCounterpartyFuel Type202120202019
Colorado ElectricPPAPRPAWind$4,246 $2,791 $— 
Colorado ElectricPPAPRPACoal$4,447 $4,524 $1,802 
South Dakota ElectricPPAPacifiCorpCoal$8,923 $5,897 $7,477 
South Dakota ElectricTransmission Services AgreementPacifiCorpN/A$1,783 $1,776 $1,741 
South Dakota ElectricPPAPRPAWind$596 $715 $688 
Wyoming ElectricPPAHappy JackWind$3,544 $4,531 $3,936 
Wyoming ElectricPPASilver SageWind$4,717 $6,203 $5,366 
Purchased Gas Cost Obligation  
Long-term Purchase Commitment [Line Items]  
Long-term Purchase Commitment At December 31, 2021, the long-term commitments to purchase quantities of natural gas under contracts indexed to the following forward indices were as follows (in MMBtus):
20222023202420252026Thereafter
El Paso - Bondad Station31,000—————
Kern River - Opal9,300—————
El Paso - San Juan Basin182,550—————
Enable East Pipeline1,825,000450,000————
Northern Natural Gas - Demarc1,614—————
Northern Natural Gas - Ventura1,810,0001,840,0001,820,000———
Northwest Pipeline - Wyoming1,531,7001,510,000910,000———
ONEOK - Oklahoma5,475,0005,475,0005,490,0004,560,000——
Southern Star Central Gas Pipeline113,130—————
Panhandle Eastern Pipe Line1,609,6802,737,500————
12,588,97412,012,5008,220,0004,560,000——