Louisville Gas & Electric 10-K 2019 FY Annual report

Exhibit 23(a)

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-223142 and 333-223140 on Form S-3and Registration Statement Nos. 333-215193, 333-209618, 333-181752, and 333-197629 on Form S-8 of our reports dated February 18, 2021, relating to thefinancial statements of PPL Corporation and the effectiveness of PPL Corporation’s internal control over financial reporting appearing in this Annual Report on Form 10-K for the year ended December 31, 2020.

/s/ Deloitte & Touche LLP

Parsippany, New Jersey

February 18, 2021