Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 1) - BRL (R$) R$ / shares in Units, R$ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating revenues (expenses)
General and administrative expenses	R$ (825,350)	R$ (1,078,037)	R$ (733,695)
Discontinued operations
Net income	R$ 2,799,370	R$ 2,327,168	R$ 1,149,321
Common shares [Member]
Basic and diluted net earning per share attributed to controlling shareholders - continuing operations - expressed in Brazilian Reais
Basic earnings (loss) per share from continuing operations	R$ 0.74447	R$ 0.75215	R$ 0.43170
Diluted earnings (loss) per share from continuing operations	0.74335	0.75215	0.43170
Basic and diluted net earning per share attributed to controlling shareholders - expressed in Brazilian Reais
Basic earnings (loss) per share	0.89163	0.78574	0.38839
Diluted earnings (loss) per share	0.89051	0.78574	0.38839
Class A Preferred Shares [Member]
Basic and diluted net earning per share attributed to controlling shareholders - continuing operations - expressed in Brazilian Reais
Basic earnings (loss) per share from continuing operations	0.81978	0.87237	0.55106
Diluted earnings (loss) per share from continuing operations	0.81978	0.87237	0.55106
Basic and diluted net earning per share attributed to controlling shareholders - expressed in Brazilian Reais
Basic earnings (loss) per share	0.98165	0.90931	0.50343
Diluted earnings (loss) per share	0.98165	0.90931	0.50343
Class B Preferred Shares [Member]
Basic and diluted net earning per share attributed to controlling shareholders - continuing operations - expressed in Brazilian Reais
Basic earnings (loss) per share from continuing operations	0.81899	0.76906	0.46509
Diluted earnings (loss) per share from continuing operations	0.81899	0.76906	0.46509
Basic and diluted net earning per share attributed to controlling shareholders - expressed in Brazilian Reais
Basic earnings (loss) per share	0.98086	0.80600	0.41745
Diluted earnings (loss) per share	R$ 0.98087	R$ 0.80600	R$ 0.41745
Companhia Paranaense De Energia Copel [Member]
Operating revenues (expenses)
General and administrative expenses	R$ (165,896)	R$ (177,097)	R$ (111,665)
Other revenues (expenses), net	(87,455)	(38,990)	(441,601)
Result of equity in investees	2,512,087	2,332,609	1,746,263
Expenses, by nature	2,258,736	2,116,522	1,192,997
Operating income before financial results	2,258,736	2,116,522	1,192,997
Financial income (expenses)
Financial revenues	211,411	145,881	57,658
Financial expenses	(147,583)	(115,669)	(177,375)
Total Financial income (expenses)	63,828	30,212	(119,717)
Operating income	2,322,564	2,146,734	1,073,280
Income tax and social contribution
Income tax and social contribution	6,732	(5,737)	0
Deferred income tax and social contribution	16,645	17,080	164,539
Total Income tax and social contribution	23,377	11,343	164,539
Net income from continuing operations	2,345,941	2,158,077	1,237,819
Discontinued operations
Net income (loss) from discontinued operations	463,690	100,733	(125,812)
Net income	R$ 2,809,631	R$ 2,258,810	R$ 1,112,007
Companhia Paranaense De Energia Copel [Member] \| Common shares [Member]
Basic and diluted net earning per share attributed to controlling shareholders - continuing operations - expressed in Brazilian Reais
Basic earnings (loss) per share from continuing operations	R$ 0.89163	R$ 0.78574	R$ 0.38839
Basic and diluted net earning per share attributed to controlling shareholders - expressed in Brazilian Reais
Basic earnings (loss) per share	0.89051	0.78574	0.38839
Companhia Paranaense De Energia Copel [Member] \| Class A Preferred Shares [Member]
Basic and diluted net earning per share attributed to controlling shareholders - continuing operations - expressed in Brazilian Reais
Basic earnings (loss) per share from continuing operations	0.98165	0.90931	0.50343
Basic and diluted net earning per share attributed to controlling shareholders - expressed in Brazilian Reais
Basic earnings (loss) per share	0.98165	0.90931	0.50343
Companhia Paranaense De Energia Copel [Member] \| Class B Preferred Shares [Member]
Basic and diluted net earning per share attributed to controlling shareholders - continuing operations - expressed in Brazilian Reais
Basic earnings (loss) per share from continuing operations	0.98086	0.80600	0.41745
Basic and diluted net earning per share attributed to controlling shareholders - expressed in Brazilian Reais
Basic earnings (loss) per share	R$ 0.98087	R$ 0.80600	R$ 0.41745

Basic and diluted net earning per share attributed to controlling shareholders - expressed in Brazilian Reais

No definition available.

Name:	elp_BasicAndDilutedNetEarningPerShareAttributedToControllingShareholdersExpressedInBrazilianReais
Namespace Prefix:	elp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

CurrentTaxExpenseIncome2

+ References

No definition available.

+ Details

Name:	elp_CurrentTaxExpenseIncome2
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

DISCONTINUED OPERATIONS

+ References

No definition available.

+ Details

Name:	elp_DISCONTINUEDOPERATIONSAbstract
Namespace Prefix:	elp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

SHAREHOLDERS - CONTINUING OPERATIONS - Expressed in Brazilian Reais

+ References

No definition available.

+ Details

Name:	elp_EarningsPerShareFromContinuingOperationsAbstract
Namespace Prefix:	elp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

FinanceCosts1

+ References

No definition available.

+ Details

Name:	elp_FinanceCosts1
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Financial revenues

+ References

No definition available.

+ Details

Name:	elp_FinanceIncome1
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Total Financial income (expenses)

+ References

No definition available.

+ Details

Name:	elp_FinancialResults
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Financial results

+ References

No definition available.

+ Details

Name:	elp_FinancialResultsAbstract
Namespace Prefix:	elp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Net income from continuing operations

+ References

No definition available.

+ Details

Name:	elp_IncomeFromContinuingOperationsAttributableToOwnersOfParent1
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

IncomeFromDiscontinuedOperationsAttributableToOwnersOfParent2

+ References

No definition available.

+ Details

Name:	elp_IncomeFromDiscontinuedOperationsAttributableToOwnersOfParent2
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

INCOME TAX AND SOCIAL CONTRIBUTION

+ References

No definition available.

+ Details

Name:	elp_IncomeTaxAndSocialContributionAbstract
Namespace Prefix:	elp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Total Income tax and social contribution

+ References

No definition available.

+ Details

Name:	elp_IncomeTaxAndSocialContributions
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Deferred income tax and social contribution

+ References

No definition available.

+ Details

Name:	elp_IncomeTaxExpenseContinuingOperations3
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Operating income before financial results

+ References

No definition available.

+ Details

Name:	elp_OperatingIncomeBeforeFinancialResults
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Result of equity in investees

+ References

No definition available.

+ Details

Name:	elp_OtherIncomeExpenseFromSubsidiariesJointlyControlledEntitiesAndAssociates1
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Other revenues (expenses), net

+ References

No definition available.

+ Details

Name:	elp_OtherRevenuesExpensesNet
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Operating income

+ References

No definition available.

+ Details

Name:	elp_ProfitLossBeforeTax2
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

General and administrative expenses

+ References

No definition available.

+ Details

Name:	elp_SellingGeneralAndAdministrativeExpenses
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 33
-IssueDate 2024-01-01
-Paragraph 66
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2024-en-r&anchor=para_66&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 33
-IssueDate 2024-01-01
-Paragraph 67
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2024-en-r&anchor=para_67&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_BasicEarningsLossPerShare
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Basic earnings (loss) per share from continuing operations. [Refer: Basic earnings (loss) per share; Continuing operations, unless line item indicates otherwise [member]]

+ References

+ Details

Name:	ifrs-full_BasicEarningsLossPerShareFromContinuingOperations
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator), divided by the weighted average number of ordinary shares outstanding during the period (the denominator), both adjusted for the effects of all dilutive potential ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

+ References

+ Details

Name:	ifrs-full_DilutedEarningsLossPerShare
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Diluted earnings (loss) per share from continuing operations. [Refer: Continuing operations, unless line item indicates otherwise [member]; Diluted earnings (loss) per share]

+ References

+ Details

Name:	ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of expenses aggregated according to their nature (for example, depreciation, purchases of materials, transport costs, employee benefits and advertising costs), and not reallocated among functions within the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 99
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_99&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ExpenseByNature
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

Name:	ifrs-full_ExpenseByNatureAbstract
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The total of income less expenses from continuing and discontinued operations, excluding the components of other comprehensive income. [Refer: Other comprehensive income]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2024-01-01
-Paragraph 18
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_18_b&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 1
-IssueDate 2024-01-01
-Paragraph 32
-Subparagraph a
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2024-en-r&anchor=para_32_a_ii&doctype=Standard
-URIDate 2024-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 1
-IssueDate 2024-01-01
-Paragraph 24
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2024-en-r&anchor=para_24_b&doctype=Standard
-URIDate 2024-03-27

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2024-01-01
-Paragraph 28
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_28_b&doctype=Standard
-URIDate 2024-03-27

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2024-01-01
-Paragraph 23
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_23&doctype=Standard
-URIDate 2024-03-27

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 12
-IssueDate 2024-01-01
-Paragraph B10
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_B10_b&doctype=Appendix&subtype=B
-URIDate 2024-03-27

Reference 7: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 17
-IssueDate 2024-01-01
-Paragraph 113
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2024-en-r&anchor=para_113_b&doctype=Standard
-URIDate 2024-03-27

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 81A
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_81A_a&doctype=Standard
-URIDate 2024-03-27

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 106
-Subparagraph d
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d_i&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ProfitLoss
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_OrdinarySharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=elp_ClassAPreferredSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=elp_ClassBPreferredSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=elp_CompanhiaParanaenseDeEnergiaCopelMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: