1. Short title This Act may be cited as the Energy Savings Through Public-Private Partnerships Act of 2019 . 2. Use of energy and water efficiency measures in Federal buildings (a) Energy management requirements Section 543(f)(4) of the National Energy Conservation Policy Act ( 42 U.S.C. 8253(f)(4) ) is amended— (1) by striking subparagraph (B); (2) in the matter preceding subparagraph (A), by striking may and all that follows through the Federal in subparagraph (A) and inserting the following: shall implement any energy- or water-saving measure that— (i) the Federal ; (3) in the matter preceding clause (i) (as so designated), by striking Not later and inserting the following: (A) In general Not later ; (4) in subparagraph (A) (as so designated)— (A) in clause (i), by striking paragraph (3) that is and inserting the following: paragraph (3); and (ii) is ; (B) in clause (ii) (as so designated), by striking ; and and inserting , as determined by evaluating an individual measure or a bundle of measures with varying paybacks. ; and (5) by adding at the end the following: (B) Performance contracting Each Federal agency shall use performance contracting to address at least 1/2 of the measures identified under subparagraph (A)(i). . (b) Reports Section 548(b) of the National Energy Conservation Policy Act ( 42 U.S.C. 8258(b) ) is amended— (1) in paragraph (3), by striking and at the end; (2) in paragraph (4), by striking the period at the end and inserting ; and ; and (3) by adding at the end the following: (5) (A) the status of the energy savings performance contracts and utility energy service contracts of each agency, to the extent that the information is not duplicative of information provided to the Secretary under a separate authority; (B) the quantity and investment value of the contracts for the previous year; (C) the guaranteed energy savings, or for contracts without a guarantee, the estimated energy savings, for the previous year, as compared to the measured energy savings for the previous year