Statement of financial position [abstract] CONSOLIDATED AND SEPARATE STATEMENTS OF INCOME STATEMENT OF COMPREHENSIVE INCOME CONSOLIDATED AND SEPARATE STATEMENTS OF CASH FLOWS Statement of changes in equity [abstract] Statement of changes in equity [table] Statement of changes in equity [line items] Line items not dimensionally qualified placeholder The amount of cost from the production and purchase of lignite. Lignite Lignite cost The amount of liquid fuels consumed and recognised as an expense during the year. Liquid Fuels Liquid fuels The amount of expense arising from the purchase of natural gas. Natural Gas Natural gas The amount of cost for the allocation of emission allowances CO2 of the entity's bound stations. Emission allowances Emission allowances Distribution system usage Distribution system usage The amount of charges related to distribution of energy. The amount of entity's provisions for risks associated with claims by third parties. Provisions for risks Provisions for risks The amount of expense arising from purchased utilities and maintenance expense. Utilities and maintenance Utilities and maintenance expense The amount of impairment loss for lignite subsidiaries recognised in profit or loss. Impairment loss on Lignite Subsidiaries Impairment loss on lignite subsidiaries Adjustments for amortisation of subsidies to reconcile profit (loss) to net cash flow (from used) in operating activities. Amortization of subsidies Adjustments for amortisation of subsidies Adjustments for income from long term contract liabilities to reconcile profit (loss) to net cash flow (from used) in operating activities. Income from long-term contract liabilities Adjustments for income from long term contract liabilities Adjustments for unbilled revenue to reconcile profit (loss) to net cash flow (from used) in operating activities. Unbilled revenue Adjustments for unbilled revenue Adjustments for amortisation of loans issuance fees to reconcile profit (loss) to net cash flow (from used) in operating activities. Amortization of loans’ issuance fees Adjustments for amortisation of loans issuance fees Adjustments for gain recognised in profit or loss on spin off of distribution network sector Adjustments for the gains recognised in profit or loss on spin off of distribution network sector to reconcile profit (loss) to net cash flow from (used in) operating activities. Income from the spin off of distribution network Adjustments for used provisions of units decommissioning Adjustments for used provisions of units decommissioning to reconcile profit (loss) to net cash flow from (used in) operating activities. Utilization of the provision of mines’ land restoration areas Adjustments for interest income and dividend income to reconcile profit (loss) to net cash flow (from used) in operating activities. Interest income and dividends Adjustments for interest income and dividend income Interest and dividends received The cash inflow from interest and dividends received classified as investing activities. Interest and dividends received classified as investing activities Capital expenditure for property, plant and equipment and intangible assets The cash outflow for purchases of property, plant and equipment and intangible assets, classified as investing activities. Purchase of property plant and equipment and intangible assets classified as investing activities Interest paid and loans’ issuance fees The cash outflow for interest paid and payments of loans issuance fees classified as financing activities. Interest paid and payments of loans issuance fees classified as financing activities Impairment loss on assets Adjustments for impairment loss (reversal of impairment loss) on assets to reconcile profit (loss) to net cash flow (from used) in operating activities. Adjustments for impairment loss (reversal of impairment loss) on assets recognised in profit or loss Impairment loss of the shareholding of Lignite Subsidiaries Adjustments for impairment loss (reversal of impairment loss) on investments in subsidiaries to reconcile profit (loss) to net cash flow (from used) in operating activities. Adjustments for impairment loss recognised in profit or loss, investments in subsidiaries Fixed assets statutory revaluation surplus Statutory revaluation surplus A component of equity representing the fixed assets' statutory revaluation surplus included in share capital. The amount of income tax relating to amounts recognised in other comprehensive income in relation to impairment loss of property, plant and equipment with revaluation surplus. Deferred tax on impairement of Property, plant and equipment with revaluation surplus Income tax relating to impairment loss recognised in other comprehensive income property plant and equipment with revaluation surplus The amount of income tax relating to amounts recognised in other comprehensive income in relation to remeasurements of defined benefit plans due to change in tax rate. Deferred tax on actuarial gains/ losses due to tax rate change Income tax relating to remeasurements of defined benefit plans of other comprehensive income due to change in tax rate The amount of income tax relating to the revaluation of property, plant and equipment recognised in other comprehensive income due to change in tax rate. Deferred taxes on fixed assets due to change of tax rate Income tax relating to revaluation of property plant and equipment recognised in other comprehensive income due to change in tax rate The amount of income tax relating to amounts recognised in other comprehensive income in relation to cash flow hedges due to change in tax rate. Deferred tax on gains from the valuation of hedging transactions due to change of tax rate Income tax relating to cash flow hedges of other comprehensive income due to change in tax rate Cash flows from (used in) financing activities Net Cash used in Financing Activities Inflows of cash for the issue of shares including outflows of cash from the total expenses of issuing shares, classified as financing activities. Share capital increase including expenses Proceeds from issuing shares net off payments for share issue costs Other gains losses Income from the spin off of distribution network Assets [abstract] ASSETS Non-current assets [abstract] Non - Current Assets : Property, plant and equipment Property, plant and equipment, net Intangible assets other than goodwill Intangible assets, net Right-of-use assets Right of use assets Investments in subsidiaries Investments in associates accounted for using equity method Investments in associates Other non-current assets Other non – current assets Deferred tax assets Deferred tax asset Non-current assets Total non – current assets Current Assets : Current inventories Inventories Current trade receivables Trade receivables Current contract assets Contract assets Other current receivables Other receivables Current derivative financial assets Derivative Financial instruments Current tax assets Income tax receivable Cash and cash equivalents Cash and cash equivalents at the beginning of the year Cash and cash equivalents at the end of the year Cash and cash equivalents Current restricted cash and cash equivalents Restricted cash Current assets other than non-current assets or disposal groups classified as held for sale or as held for distribution to owners Total Non-current assets or disposal groups classified as held for sale Total Assets Held for Sale Current assets Total current assets Assets Total Assets Equity and liabilities [abstract] EQUITY AND LIABILITIES Equity [abstract] EQUITY : Issued capital Share capital Share premium Statutory reserve Legal reserve Property, plant and equipment, revaluation surplus Revaluation surplus Other reserves Other Reserves Retained earnings Equity attributable to owners of parent Total Equity attributable to the Owners of the Parent Non-controlling interests Total equity Balance, January 1st Balance, December 31st Equity Non-current liabilities [abstract] Non – Current Liabilities : Non-current portion of non-current borrowings Long - term borrowings Non-current net defined benefit liability Post-retirement benefits Other non-current provisions Provisions Non-current lease liabilities Financial lease liability Non-current contract liabilities Contract liabilities Non-current government grants Subsidies Other non-current financial liabilities Long term financial liability from the securitization of receivables Other non-current financial liabilities Other non – current liabilities Non-current liabilities Total non – current liabilities Current liabilities [abstract] Current Liabilities : Trade and other payables Trade and other current payables Other current financial liabilities Short term financial liability from the securitization of receivables Current dividend payables Dividends payable Current tax liabilities Income tax payable Current borrowings Short – term borrowings Current portion of non-current borrowings Current portion of long - term borrowings Current accrued expenses and other current liabilities Accrued and other current liabilities Current contract liabilities Short-term contract liabilities Current liabilities other than liabilities included in disposal groups classified as held for sale Total Liabilities included in disposal groups classified as held for sale Total Liabilities Held for Sale Current liabilities Total Current Liabilities Equity and liabilities Total Equity and Liabilities Revenue [abstract] REVENUES: Revenue from sale of electricity Revenue from energy sales Revenue from sale of natural gas Revenue from natural gas sales Other revenue Other sales Revenue Total revenue Expenses by nature [abstract] EXPENSES: Employee benefits expense Payroll cost Depreciation and amortisation expense Depreciation and amortization Cost of purchased energy sold Energy purchases Raw materials and consumables used Materials and consumables Energy transmission charges Transmission system usage Professional fees expense Third party fees Write-downs (reversals of write-downs) of inventories Provision for impairment of inventories Impairment loss (impairment gain and reversal of impairment loss) determined in accordance with IFRS 9 Provision for expected credit losses Finance costs Financial expenses Finance income Financial Income Impairment loss (reversal of impairment loss) recognised in profit or loss Impairment loss on assets Other operating income (expense) Other (income) / expenses, net Foreign exchange gain (loss) Foreign currency (gains) / losses, net Expenses, by nature Total expenses PROFIT/(LOSS) BEFORE TAX Profit / (Loss) before tax Profit / (Loss) before tax from continuing operations Profit (loss) before tax Tax expense (income) Income tax Net Profit/(Loss) for the year Profit (loss) Profit/(Loss) for the year NET PROFIT/(LOSS) Profit (loss), attributable to [abstract] Attributable to: Owners of the Parent Profit (loss), attributable to owners of parent Non – controlling interests Profit (loss), attributable to non-controlling interests Basic and diluted earnings (loss) per share Profit/(Loss) per share, basic and diluted Reclassification adjustments on cash flow hedges, net of tax Reclassification of hedging transactions through the statement of comprehensive income Gains (losses) on exchange differences on translation, net of tax Foreign exchange differences Gains (losses) on cash flow hedges, before tax Gains from the valuation of hedging transactions Income tax relating to cash flow hedges included in other comprehensive income Deferred tax on gains from the valuation of hedging transactions Other comprehensive income that will be reclassified to profit or loss, net of tax Net Other Comprehensive income / (loss) to be reclassified to profit or loss in subsequent periods Gains (losses) on financial assets measured at fair value through other comprehensive income, net of tax Gains / (Losses) on financial assets at fair value through total income Other comprehensive income, before tax, gains (losses) on revaluation Revaluation of Property, plant and equipment Income tax relating to changes in revaluation surplus included in other comprehensive income Deferred tax on revaluation of Property, plant and equipment Impairment loss recognised in other comprehensive income Impairement of Property, plant and equipment with revaluation surplus Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans Actuarial gains/ (losses) Income tax relating to remeasurements of defined benefit plans included in other comprehensive income Deferred tax on actuarial gains/ losses Other Comprehensive (loss) / income for the year after tax Other comprehensive income Other comprehensive income/ (loss) for the year after tax Comprehensive income attributable to [abstract] Attributable to: Comprehensive income, attributable to owners of parent Owners of the Parent Comprehensive income, attributable to non-controlling interests Non-controlling interests Primary Financial Statement [Table] Continuing operations [member] Continuing Operations Aggregate continuing and discontinued operations [member] Discontinued operations [member] Discontinued Operations Cash flows from (used in) operating activities [abstract] Operating activities Adjustments to reconcile profit (loss) [abstract] Adjustments: Adjustments for depreciation and amortisation expense Depreciation and amortization Adjustments for depreciation expense Depreciation of right-of-use assets Adjustments for undistributed profits of associates Share of loss/ (profit) of associates/ joint ventures Adjustments for provisions Sundry provisions Other adjustments for non-cash items Disposals of property, plant and equipment and intangible assets Adjustments for finance costs Interest expense Cash flows from (used in) operations before changes in working capital Operating profit/(loss) before working capital changes Adjustments for decrease (increase) in trade accounts receivable Trade receivables Adjustments for decrease (increase) in other operating receivables Other receivables Adjustments for decrease (increase) in inventories Inventories Adjustments for increase (decrease) in trade accounts payable Trade payables Adjustments for increase (decrease) in other liabilities Other non – current liabilities Adjustments for increase (decrease) in other current liabilities Accrued and other liabilities excluding interest Cash flows from (used in) decrease (increase) in restricted cash and cash equivalents Restricted cash Income taxes paid refund classified as operating activities (Payment) / Collection of Income Taxes Discontinued operations Cash flows from (used in) operating activities, discontinued operations Cash flows from (used in) operating activities Net Cash from Operating Activities Cash flows from (used in) investing activities [abstract] Investing Activities Inflows of cash from investing activities Proceeds from long-term contract liabilities Other inflows (outflows) of cash, classified as investing activities Investments in subsidiaries and associates Proceeds from sales of property plant and equipment classified as investing activities Sales of property, plant and equipment Cash flows from (used in) investing activities, discontinued operations Discontinued operations Cash flows from (used in) investing activities Net Cash used in Investing Activities Cash flows from (used in) financing activities [abstract] Financing Activities Cash flows from (used in) increase (decrease) in current borrowings Net change in short-term borrowings Payments of lease liabilities, classified as financing activities Principal lease payments of right-of-use assets Proceeds from non-current borrowings Proceeds from long-term borrowing Repayments of non-current borrowings Principal payments of long-term borrowing Dividends paid, classified as financing activities Dividends paid Cash flows from used in financing activities discontinued operations Discontinued operations Increase (decrease) in cash and cash equivalents Net increase / (decrease) in cash and cash equivalents Components of equity [axis] Equity [member] Issued capital [member] Share Capital Share premium [member] Share Premium Statutory reserve [member] Legal Reserve Revaluation Surplus This member stands for a component of equity representing accumulated revaluation surplus that relates to property, plant and equipment, recognised in other comprehensive income. Property plant and equipment revaluation surplus [member] Revaluation surplus [member] Statutory Revaluation Surplus Reserve of gains and losses on financial assets measured at fair value through other comprehensive income [member] Fair Value of financial assets through comprehensive income Miscellaneous other reserves [member] Foreign Exchange Defferences, Tax-free and Other Reserves Other reserves [member] Other Reserves Total Retained earnings [member] Retained Earnings Equity attributable to owners of parent [member] Total Non-controlling interests [member] Non Controlling Interest Retrospective application and retrospective restatement [axis] Currently stated [member] Previously stated [member] Adjustment due to accounting policy change in IAS 19 Increase (decrease) due to changes in accounting policy required by IFRSs [member] Impact due to revenue recognition from unbilled usage charges of distribution network Increase (decrease) due to changes in accounting policy and corrections of prior period errors [member] Statement of changes in equity Issue of equity Share capital increase Share issue related cost Expenses of the share capital increase Increase (decrease) through transfer between revaluation surplus and retained earnings, equity Disposals of property, plant and equipment Increase (decrease) through other changes, equity Other movements Adjustments for unrealised foreign exchange losses (gains) Foreign exchange gains losses on loans and borrowings Current provision for decommissioning, restoration and rehabilitation costs Current portion of the provision of decommissioning and removal of Power Plants’, Mines’ and Wind Parks’ facilities and mines’ land restoration areas Share of profit (loss) of associates accounted for using equity method (Gains)/ losses from associate Current lease liabilities Current portion of financial lease liability Gain recognised in profit or loss on spin off of distribution network sector The gains recognised in profit or loss on spin off of distribution network sector. Income from the spin off of distribution network PUBLIC POWER CORPORATION S.A. Name of reporting entity or other means of identification société anonyme Legal form of entity Chalkokondili Street, Athens, 104 32 Address of entity's registered office Greece Domicile of entity The amount of provision for decommissioning and dismantling of facilities/equipment of units and mines recognised in other comprehensive income before tax. Provision for decommissioning and dismantling of facilities/equipment of Units and mines Provision for decommissioning and dismantling of facilities/ equipment of units and mines recognised in other comprehensive income before tax The amount of income tax relating to amounts recognised in other comprehensive income in relation to provision for decommissioning and dismantling of facilities, equipment of units and mines. Deferred taxes on provision for decommissioning and dismantling of facilities/ equipment of Units and mines Income tax relating to provision for decommissioning and dismantling of facilities equipment of units and mines recognised in other comprehensive income The amount of income tax relating to amounts recognised in other comprehensive income in relation to provision for decommissioning and dismantling of facilities, equipment of units and mines due to change in tax rate. Deferred taxes on provision for decommissioning and dismantling of facilities/ equipment of Units and mines due to tax rate change Income tax relating to provision for decommissioning and dismantling of facilities equipment of units and mines recognised in other comprehensive income due to change in tax rate Greece Country of incorporation Greece Principal place of business Description of nature of entity's operations and principal activities owned and managed corporation for electricity generation, transmission and distribution Total Comprehensive income / (loss) for the year, after tax Comprehensive income Total Comprehensive (loss)/income for the year after tax Other comprehensive income that will not be reclassified to profit or loss, net of tax Net Other Comprehensive (loss) / income not to be reclassified to profit or loss in subsequent periods Notes, accounting policies and mandatory tags – this item MUST be used as a starting point for markups of disclosures in the notes to the financial statements Non-current financial assets measured at fair value through other comprehensive income Financial assets measured at fair value through other comprehensive income Continuing and discontinued operations [Axis]