Half-year report · HY

Period2025-04-01 → 2025-09-30
Filed2026-06-24
StandardJapan GAAP
ConsolidatedYes
Data checks14 of 14 passed

Amends S100X0JX. Amended by S100YIX8 (2026-06-24).

Key figures · 44
MetricValuePeriodScopeSource row
Revenue¥2.01T2025-04-01 → 2025-09-30Cons.Net sales
Revenue¥4.34T2024-04-01 → 2025-03-31Cons.Operating revenue1 (5-year summary)
Revenue¥2.14T2024-04-01 → 2024-09-30Cons.Net sales
Operating income¥276.6bn2025-04-01 → 2025-09-30Cons.Operating income
Operating income¥297.2bn2024-04-01 → 2024-09-30Cons.Operating income
Ordinary income¥315.0bn2025-04-01 → 2025-09-30Cons.Ordinary income
Ordinary income¥531.7bn2024-04-01 → 2025-03-31Cons.Ordinary income loss (5-year summary)
Ordinary income¥319.2bn2024-04-01 → 2024-09-30Cons.Ordinary income
Profit before tax¥316.2bn2025-04-01 → 2025-09-30Cons.Income before income taxes
Profit before tax¥319.6bn2024-04-01 → 2024-09-30Cons.Income before income taxes
Net income (owners)¥232.9bn2025-04-01 → 2025-09-30Cons.Profit loss attributable to owners of parent
Net income (owners)¥420.4bn2024-04-01 → 2025-03-31Cons.Profit loss attributable to owners of parent (5-year summary)
Net income (owners)¥228.8bn2024-04-01 → 2024-09-30Cons.Profit loss attributable to owners of parent
Net income¥234.4bn2025-04-01 → 2025-09-30Cons.Profit loss
Net income¥230.0bn2024-04-01 → 2024-09-30Cons.Profit loss
Total assets¥9.60Tat 2025-09-30Cons.Assets
Total assets¥9.65Tat 2025-03-31Cons.Assets
Total assets¥9.15Tat 2024-09-30Cons.Total assets (5-year summary)
Total liabilities¥6.29Tat 2025-09-30Cons.Liabilities
Total liabilities¥6.55Tat 2025-03-31Cons.Liabilities
Net assets / equity¥3.31Tat 2025-09-30Cons.Net assets
Net assets / equity¥3.11Tat 2025-03-31Cons.Net assets
Net assets / equity¥2.55Tat 2024-09-30Cons.Net assets (5-year summary)
Cash and deposits¥786.2bnat 2025-09-30Cons.Cash and deposits
Cash and deposits¥942.4bnat 2025-03-31Cons.Cash and deposits
Cash & equivalents¥771.1bnat 2025-09-30Cons.Cash and cash equivalents
Cash & equivalents¥941.4bnat 2025-03-31Cons.Cash and cash equivalents
Cash & equivalents¥341.8bnat 2024-09-30Cons.Cash and cash equivalents
Cash & equivalents¥564.4bnat 2024-03-31vCons.Cash and cash equivalents
Operating cash flow¥230.0bn2025-04-01 → 2025-09-30Cons.Net cash provided by used in operating activities
Operating cash flow¥575.3bn2024-04-01 → 2025-03-31Cons.Net cash provided by used in operating activities (5-year summary)
Operating cash flow¥136.3bn2024-04-01 → 2024-09-30Cons.Net cash provided by used in operating activities
Investing cash flow−¥289.4bn2025-04-01 → 2025-09-30Cons.Net cash provided by used in investment activities
Investing cash flow−¥342.4bn2024-04-01 → 2025-03-31Cons.Net cash provided by used in investing activities (5-year summary)
Investing cash flow−¥278.4bn2024-04-01 → 2024-09-30Cons.Net cash provided by used in investment activities
Financing cash flow−¥105.8bn2025-04-01 → 2025-09-30Cons.Net cash provided by used in financing activities
Financing cash flow¥137.7bn2024-04-01 → 2025-03-31Cons.Net cash provided by used in financing activities (5-year summary)
Financing cash flow−¥88.0bn2024-04-01 → 2024-09-30Cons.Net cash provided by used in financing activities
EPS (basic)¥209.082025-04-01 → 2025-09-30Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥436.092024-04-01 → 2025-03-31Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥256.442024-04-01 → 2024-09-30Cons.Basic earnings loss per share (5-year summary)
Equity ratio34.0%at 2025-09-30Cons.Equity to asset ratio (5-year summary)
Equity ratio31.8%at 2025-03-31Cons.Equity to asset ratio (5-year summary)
Equity ratio27.2%at 2024-09-30Cons.Equity to asset ratio (5-year summary)

Periods use the dates stated in the filing. d = earlier-year period dated by calendar; v = that date confirmed by the company's own earlier filing.

Segments · 46
SegmentItemPeriodValue
Reconciling Itemsreconcilingrevenue2025-04-01 → 2025-09-30−¥503.2bn
Reconciling Itemsreconcilingrevenue intersegment2025-04-01 → 2025-09-30−¥503.2bn
Reconciling Itemsreconcilingsegment ordinary income2025-04-01 → 2025-09-30¥4.8bn
Energyreportable segmentrevenue2025-04-01 → 2025-09-30¥1.74T
Energyreportable segmentrevenue external2025-04-01 → 2025-09-30¥1.63T
Energyreportable segmentrevenue intersegment2025-04-01 → 2025-09-30¥108.8bn
Energyreportable segmentsegment ordinary income2025-04-01 → 2025-09-30¥240.0bn
IT Communicationsreportable segmentrevenue2025-04-01 → 2025-09-30¥152.6bn
IT Communicationsreportable segmentrevenue external2025-04-01 → 2025-09-30¥108.8bn
IT Communicationsreportable segmentrevenue intersegment2025-04-01 → 2025-09-30¥43.8bn
IT Communicationsreportable segmentsegment ordinary income2025-04-01 → 2025-09-30¥25.6bn
Life Business Solutionsreportable segmentrevenue2025-04-01 → 2025-09-30¥90.0bn
Life Business Solutionsreportable segmentrevenue external2025-04-01 → 2025-09-30¥72.5bn
Life Business Solutionsreportable segmentrevenue intersegment2025-04-01 → 2025-09-30¥17.5bn
Life Business Solutionsreportable segmentsegment ordinary income2025-04-01 → 2025-09-30¥13.3bn
Transmission And Distributionreportable segmentrevenue2025-04-01 → 2025-09-30¥528.3bn
Transmission And Distributionreportable segmentrevenue external2025-04-01 → 2025-09-30¥195.2bn
Transmission And Distributionreportable segmentrevenue intersegment2025-04-01 → 2025-09-30¥333.1bn
Transmission And Distributionreportable segmentsegment ordinary income2025-04-01 → 2025-09-30¥31.2bn
Total Of Reportable Segments And Otherssegment totalrevenue2025-04-01 → 2025-09-30¥2.51T
Total Of Reportable Segments And Otherssegment totalrevenue external2025-04-01 → 2025-09-30¥2.01T
Total Of Reportable Segments And Otherssegment totalrevenue intersegment2025-04-01 → 2025-09-30¥503.2bn
Total Of Reportable Segments And Otherssegment totalsegment ordinary income2025-04-01 → 2025-09-30¥310.2bn
Reconciling Itemsreconcilingrevenue2024-04-01 → 2024-09-30−¥517.8bn
Reconciling Itemsreconcilingrevenue intersegment2024-04-01 → 2024-09-30−¥517.8bn
Reconciling Itemsreconcilingsegment ordinary income2024-04-01 → 2024-09-30−¥12.4bn
Energyreportable segmentrevenue2024-04-01 → 2024-09-30¥1.85T
Energyreportable segmentrevenue external2024-04-01 → 2024-09-30¥1.73T
Energyreportable segmentrevenue intersegment2024-04-01 → 2024-09-30¥119.3bn
Energyreportable segmentsegment ordinary income2024-04-01 → 2024-09-30¥260.0bn
IT Communicationsreportable segmentrevenue2024-04-01 → 2024-09-30¥149.4bn
IT Communicationsreportable segmentrevenue external2024-04-01 → 2024-09-30¥110.3bn
IT Communicationsreportable segmentrevenue intersegment2024-04-01 → 2024-09-30¥39.0bn
IT Communicationsreportable segmentsegment ordinary income2024-04-01 → 2024-09-30¥22.6bn
Life Business Solutionsreportable segmentrevenue2024-04-01 → 2024-09-30¥121.4bn
Life Business Solutionsreportable segmentrevenue external2024-04-01 → 2024-09-30¥102.6bn
Life Business Solutionsreportable segmentrevenue intersegment2024-04-01 → 2024-09-30¥18.9bn
Life Business Solutionsreportable segmentsegment ordinary income2024-04-01 → 2024-09-30¥17.2bn
Transmission And Distributionreportable segmentrevenue2024-04-01 → 2024-09-30¥534.6bn
Transmission And Distributionreportable segmentrevenue external2024-04-01 → 2024-09-30¥193.9bn
Transmission And Distributionreportable segmentrevenue intersegment2024-04-01 → 2024-09-30¥340.6bn
Transmission And Distributionreportable segmentsegment ordinary income2024-04-01 → 2024-09-30¥31.8bn
Total Of Reportable Segments And Otherssegment totalrevenue2024-04-01 → 2024-09-30¥2.65T
Total Of Reportable Segments And Otherssegment totalrevenue external2024-04-01 → 2024-09-30¥2.14T
Total Of Reportable Segments And Otherssegment totalrevenue intersegment2024-04-01 → 2024-09-30¥517.8bn
Total Of Reportable Segments And Otherssegment totalsegment ordinary income2024-04-01 → 2024-09-30¥331.6bn

Segment names come from EDINET member IDs; not yet mapped to a common taxonomy.

All source rows · 546
ItemContextValueUnit
Ordinary incomePrior1InterimDuration319239000000JPY
Ordinary incomeInterimDuration314988000000JPY
Provision or reversal of reserve for fluctuation in water levels elePrior1InterimDuration-366000000JPY
Provision or reversal of reserve for fluctuation in water levels eleInterimDuration-1220000000JPY
Reversal of reserve for fluctuation in water levels elePrior1InterimDuration-366000000JPY
Reversal of reserve for fluctuation in water levels eleInterimDuration-1220000000JPY
Income before income taxesPrior1InterimDuration319606000000JPY
Income before income taxesInterimDuration316208000000JPY
Income taxes currentPrior1InterimDuration89152000000JPY
Income taxes currentInterimDuration72034000000JPY
Income taxes deferredPrior1InterimDuration469000000JPY
Income taxes deferredInterimDuration9777000000JPY
Income taxesPrior1InterimDuration89622000000JPY
Income taxesInterimDuration81811000000JPY
Profit lossPrior1InterimDuration229983000000JPY
Profit lossInterimDuration234397000000JPY
Profit loss attributable to non controlling interestsPrior1InterimDuration1150000000JPY
Profit loss attributable to non controlling interestsInterimDuration1466000000JPY
Profit loss attributable to owners of parentPrior1InterimDuration228833000000JPY
Profit loss attributable to owners of parentInterimDuration232931000000JPY
Profit lossPrior1InterimDuration229983000000JPY
Profit lossInterimDuration234397000000JPY
Valuation difference on available for sale securities net of tax ociPrior1InterimDuration-5072000000JPY
Valuation difference on available for sale securities net of tax ociInterimDuration21689000000JPY
Deferred gains or losses on hedges net of tax ociPrior1InterimDuration-5438000000JPY
Deferred gains or losses on hedges net of tax ociInterimDuration-837000000JPY
Foreign currency translation adjustment net of tax ociPrior1InterimDuration16474000000JPY
Foreign currency translation adjustment net of tax ociInterimDuration-10886000000JPY
Remeasurements of defined benefit plans net of tax ociPrior1InterimDuration257000000JPY
Remeasurements of defined benefit plans net of tax ociInterimDuration-7603000000JPY
Share of other comprehensive income of associates accounted for using equity method ociPrior1InterimDuration2626000000JPY
Share of other comprehensive income of associates accounted for using equity method ociInterimDuration-1228000000JPY
Other comprehensive incomePrior1InterimDuration8846000000JPY
Other comprehensive incomeInterimDuration1133000000JPY
Comprehensive incomePrior1InterimDuration238830000000JPY
Comprehensive incomeInterimDuration235530000000JPY
Comprehensive income attributable to owners of the parentPrior1InterimDuration238930000000JPY
Comprehensive income attributable to owners of the parentInterimDuration233670000000JPY
Comprehensive income attributable to non controlling interestsPrior1InterimDuration-99000000JPY
Comprehensive income attributable to non controlling interestsInterimDuration1860000000JPY
Income before income taxesPrior1InterimDuration319606000000JPY
Income before income taxesInterimDuration316208000000JPY
Depreciation and amortization ope cfPrior1InterimDuration165346000000JPY
Depreciation and amortization ope cfInterimDuration167408000000JPY
Amortization of special account related to nuclear power decommissioning ope cfelePrior1InterimDuration5234000000JPY
Amortization of special account related to nuclear power decommissioning ope cfeleInterimDuration5234000000JPY
Amortization of nuclear fuel ope cfelePrior1InterimDuration22137000000JPY
Amortization of nuclear fuel ope cfeleInterimDuration16551000000JPY
Loss on retirement of noncurrent assets ope cfPrior1InterimDuration1137000000JPY
Loss on retirement of noncurrent assets ope cfInterimDuration3390000000JPY

Every row of the EDINET CSV. Item names are the XBRL element names; filed text is kept in its original Japanese. Filed text is available on Plus and Pro.

Data checks · 14 of 14 passed
balance sheet identityconsolidated 2025-03-31pass rounding
balance sheet identityconsolidated 2025-09-30pass rounding
dei present pass
period resolution pass
statement vs summary · net assetsconsolidated 2025-03-31pass
statement vs summary · net assetsconsolidated 2025-09-30pass
statement vs summary · net income attributable to parentconsolidated 2024-04-01/2024-09-30pass
statement vs summary · net income attributable to parentconsolidated 2025-04-01/2025-09-30pass
statement vs summary · operating cash flowconsolidated 2024-04-01/2024-09-30pass
statement vs summary · operating cash flowconsolidated 2025-04-01/2025-09-30pass
statement vs summary · revenueconsolidated 2024-04-01/2024-09-30pass
statement vs summary · revenueconsolidated 2025-04-01/2025-09-30pass
statement vs summary · total assetsconsolidated 2025-03-31pass
statement vs summary · total assetsconsolidated 2025-09-30pass