Securities and Exchange Commission

Public Utilities, Property, Plant and Equipment, Disclosure of Composite Depreciation Rate for Plants in Service

Composite depreciation rate for public utility plants in service.

Compare To Other Companies

Annual (pure)

Value	Reported On	Form	FY	FP	Start Date	End Date	Fiscal Period
0.0234	2011-11-23	10-K	2011	FY	2008-10-01	2009-09-30	CY2009
0.0224	2012-11-29	10-K	2012	FY	2009-10-01	2010-09-30	CY2010
0.0239	2013-11-26	10-K	2013	FY	2010-10-01	2011-09-30	CY2011
0.0238	2014-11-25	10-K	2014	FY	2011-10-01	2012-09-30	CY2012
0.0243	2015-11-24	10-K	2015	FY	2012-10-01	2013-09-30	CY2013
0.0244	2016-11-22	10-K	2016	FY	2013-10-01	2014-09-30	CY2014
0.0231	2017-11-21	10-K	2017	FY	2014-10-01	2015-09-30	CY2015
0.0232	2018-11-20	10-K	2018	FY	2015-10-01	2016-09-30	CY2016
0.0225	2019-11-22	10-K	2019	FY	2016-10-01	2017-09-30	CY2017
0.0229	2021-09-27	8-K	2021	FY	2017-10-01	2018-09-30	CY2018
0.0225	2021-11-18	10-K	2021	FY	2018-10-01	2019-09-30	CY2019
0.0265	2022-11-17	10-K	2022	FY	2019-10-01	2020-09-30	CY2020
0.0242	2023-11-21	10-K	2023	FY	2020-10-01	2021-09-30	CY2021
0.0266	2024-11-26	10-K	2024	FY	2021-10-01	2022-09-30	CY2022
0.0268	2024-11-26	10-K	2024	FY	2022-10-01	2023-09-30	CY2023
0.0269	2024-11-26	10-K	2024	FY	2023-10-01	2024-09-30	CY2024

All Reported Public Utilities, Property, Plant and Equipment, Disclosure of Composite Depreciation Rate for Plants in Service (pure)

Value	Reported On	Form	FY	FP	Start Date	End Date	Fiscal Period
0.0234	2011-11-23	10-K	2011	FY	2008-10-01	2009-09-30	CY2009
0.0224	2011-11-23	10-K	2011	FY	2009-10-01	2010-09-30
0.0224	2012-11-29	10-K	2012	FY	2009-10-01	2010-09-30	CY2010
0.0239	2011-11-23	10-K	2011	FY	2010-10-01	2011-09-30
0.0239	2012-11-29	10-K	2012	FY	2010-10-01	2011-09-30
0.0239	2013-11-26	10-K	2013	FY	2010-10-01	2011-09-30	CY2011
0.0238	2012-11-29	10-K	2012	FY	2011-10-01	2012-09-30
0.0238	2013-11-26	10-K	2013	FY	2011-10-01	2012-09-30
0.0238	2014-11-25	10-K	2014	FY	2011-10-01	2012-09-30	CY2012
0.0243	2013-11-26	10-K	2013	FY	2012-10-01	2013-09-30
0.0243	2014-11-25	10-K	2014	FY	2012-10-01	2013-09-30
0.0243	2015-11-24	10-K	2015	FY	2012-10-01	2013-09-30	CY2013
0.0244	2014-11-25	10-K	2014	FY	2013-10-01	2014-09-30
0.0244	2015-11-24	10-K	2015	FY	2013-10-01	2014-09-30
0.0244	2016-11-22	10-K	2016	FY	2013-10-01	2014-09-30	CY2014
0.0231	2015-11-24	10-K	2015	FY	2014-10-01	2015-09-30
0.0231	2016-11-22	10-K	2016	FY	2014-10-01	2015-09-30
0.0231	2017-11-21	10-K	2017	FY	2014-10-01	2015-09-30	CY2015
0.0232	2016-11-22	10-K	2016	FY	2015-10-01	2016-09-30
0.0232	2017-11-21	10-K	2017	FY	2015-10-01	2016-09-30
0.0232	2018-11-20	10-K	2018	FY	2015-10-01	2016-09-30	CY2016
0.0225	2017-11-21	10-K	2017	FY	2016-10-01	2017-09-30
0.0225	2018-11-20	10-K	2018	FY	2016-10-01	2017-09-30
0.0225	2019-11-22	10-K	2019	FY	2016-10-01	2017-09-30	CY2017
0.0229	2018-11-20	10-K	2018	FY	2017-10-01	2018-09-30
0.0229	2019-11-22	10-K	2019	FY	2017-10-01	2018-09-30
0.0229	2020-11-30	10-K	2020	FY	2017-10-01	2018-09-30
0.0229	2021-09-27	8-K	2021	FY	2017-10-01	2018-09-30	CY2018
0.0225	2019-11-22	10-K	2019	FY	2018-10-01	2019-09-30
0.0225	2020-11-30	10-K	2020	FY	2018-10-01	2019-09-30
0.0225	2021-09-27	8-K	2021	FY	2018-10-01	2019-09-30
0.0225	2021-11-18	10-K	2021	FY	2018-10-01	2019-09-30	CY2019
0.0265	2020-11-30	10-K	2020	FY	2019-10-01	2020-09-30
0.0265	2021-09-27	8-K	2021	FY	2019-10-01	2020-09-30
0.0265	2021-11-18	10-K	2021	FY	2019-10-01	2020-09-30
0.0265	2022-11-17	10-K	2022	FY	2019-10-01	2020-09-30	CY2020
0.0242	2021-11-18	10-K	2021	FY	2020-10-01	2021-09-30
0.0242	2022-11-17	10-K	2022	FY	2020-10-01	2021-09-30
0.0242	2023-11-21	10-K	2023	FY	2020-10-01	2021-09-30	CY2021
0.0266	2022-11-17	10-K	2022	FY	2021-10-01	2022-09-30
0.0266	2023-11-21	10-K	2023	FY	2021-10-01	2022-09-30
0.0266	2024-11-26	10-K	2024	FY	2021-10-01	2022-09-30	CY2022
0.0268	2023-11-21	10-K	2023	FY	2022-10-01	2023-09-30
0.0268	2024-11-26	10-K	2024	FY	2022-10-01	2023-09-30	CY2023
0.0269	2024-11-26	10-K	2024	FY	2023-10-01	2024-09-30	CY2024