* Exhibit A: Reconciliation of PG&E Corporation Earnings from Operations to Consolidated Income Available for Common Shareholders in Accordance with Generally Accepted Accounting Principles (“GAAP”) First Quarter, 2015 vs. 2014 (in millions, except per share amounts) In 2014, natural gas matters included pipeline-related costs to perform work under the PSEP and other activities associated with safety improvements to the Utility’s natural gas system, as well as legal and other costs related to natural gas matters. Natural gas matters also included charges recorded related to fines, third party liability claims, and insurance recoveries in 2014. “Earnings from operations” is not calculated in accordance with GAAP and excludes items impacting comparability as described in Note (2) below. Items impacting comparability reconcile earnings from operations with Consolidated Income Available for Common Shareholders as reported in accordance with GAAP. For the three months ended March 31, 2015 the Utility incurred costs of $17 million, pre-tax, for pipeline related expenses, including costs related to the multi-year effort to identify and remove encroachments from transmission pipeline rights of way and costs to perform remaining work under the Utility’s pipeline safety enhancement plan (“PSEP”). For the three months ended March 31, 2015 the Utility incurred costs of $14 million, pre-tax, for legal and regulatory related expenses, including legal and other costs incurred in connection with various enforcement, regulatory, and litigation activities regarding natural gas matters and regulatory communications. For the three months ended March 31, 2015 the Utility incurred costs of $553 million, pre-tax, associated with fines and penalties imposed by the CPUC on April 9, 2015 in the gas transmission pipeline investigations. As shown in the table below, these costs include an increase to the accrual for fines payable to the State General Fund, a charge for a bill credit for natural gas customers, and a charge for capital costs incurred during the three months ended March 31, 2015 that the Utility believes are probable of disallowance in the Gas Transmission and Storage rate case. Future fines or penalties may be imposed in connection with other enforcement, regulatory and litigation activities regarding natural gas matters and regulatory communications.