(a) Energy Resilience Measures.—
(1)
The Secretary of Defense shall, by the end of fiscal year 2030, provide that 100 percent of the energy load required to maintain the critical missions of each installation have a minimum level of availability of 99.9 percent per fiscal year.
(2)
The Secretary of Defense shall issue standards establishing levels of availability relative to specific critical missions, with such standards providing a range of not less than 99.9 percent availability per fiscal year and not more than 99.9999 percent availability per fiscal year, depending on the criticality of the mission.
(3)
The Secretary may establish interim goals to take effect prior to fiscal year 2025 to ensure the requirements under this subsection are met.
(4)
The Secretary of each military department and the head of each Defense Agency shall ensure that their organizations meet the requirements of this subsection.
(5)
The Secretary shall establish internal processes to support coordination with external regulatory and planning entities involved in grid reliability, transmission infrastructure, and long-term energy planning, in order to assess and mitigate risks to defense-critical installations, advance the energy security objectives of the Department, and comply with statutory mandates under this section.
(6) Coordination under paragraph (5)—
(A)
shall include identification of mission-critical loads and infrastructure dependencies and load profiles at or near military installations; and
(b) Planning.—
(1)
The Secretary of Defense shall require the Secretary of each military department and the head of each Defense Agency to plan for the provision of energy resilience and energy security for installations.
(2) Planning under paragraph (1) shall—
(A)
promote the use of multiple and diverse sources of energy, with an emphasis favoring energy resources originating on the installation such as modular generation;
(B)
promote installing microgrids to ensure the energy security and energy resilience of critical missions; and
(c) Development of Information.—The planning required by subsection (b) shall identify each of the following for each installation:
(3)
The duration that those energy requirements are likely to be needed in the event of a disruption or emergency.
(5)
The duration that the currently provided energy would likely be available in the event of a disruption or emergency.
(6)
Any currently available sources of energy that would provide uninterrupted energy to critical missions in the event of a disruption or emergency.
(7)
Alternative sources of energy that could be developed to provide uninterrupted energy to critical missions in the event of a disruption or emergency.
(d) Testing and Measuring.—
(1)
(2)
(A)
The Secretary of Defense shall require that black start exercises be conducted to assess the energy resilience and energy security of installations for periods established to evaluate the ability of the installation to perform critical missions without access to off-installation energy resources.
(B)
A black start exercise conducted under subparagraph (A) may exclude, if technically feasible, housing areas, commissaries, exchanges, and morale, welfare, and recreation facilities.
(C) The Secretary of Defense shall—
(i)
provide uniform policy for the military departments and the Defense Agencies with respect to conducting black start exercises; and
(ii)
establish a schedule of black start exercises for the military departments and the Defense Agencies, with each military department and Defense Agency scheduled to conduct such an exercise on a number of installations each year sufficient to allow that military department or Defense Agency to meet the goals of this section, but in any event not fewer than five installations each year for each military department through fiscal year 2032.
(D)
(i)
Except as provided in clause (ii), the Secretary of each military department shall, notwithstanding any other provision of law, conduct black start exercises in accordance with the schedule provided for in subparagraph (C)(ii), with any such exercise not to last longer than five days.
(ii)
The Secretary of a military department may conduct more black start exercises than those identified in the schedule provided for in subparagraph (C)(ii).
(e) Contract Requirements.—For contracts for energy and utility services, the Secretary of Defense shall—
(1)
specify methods and processes to measure, manage, and verify compliance with subsection (a); and
(2)
ensure that such contracts include requirements appropriate to ensure energy resilience and energy security, including requirements for metering to measure, manage, and verify energy consumption, availability, and reliability consistent with this section and the energy resilience metrics and standards under section 2911(b) of this title.
(g) Report.—If by the end of fiscal year 2027, the Secretary determines that the Department will be unable to meet the requirements under subsection (a), not later than 90 days after the end of such fiscal year, the Secretary shall submit to the Committees on Armed Services of the Senate and House of Representatives a report detailing—
(h) Definitions.—In this section:
(1)
The term “availability” means the availability of required energy at a stated instant of time or over a stated period of time for a specific purpose.
(2) The term “black start exercise” means an exercise in which delivery of energy provided from off an installation is terminated before backup generation assets on the installation are turned on. Such an exercise shall—
(A)
determine the ability of the backup systems to start independently, transfer the load, and carry the load until energy from off the installation is restored;
(B)
align organizations with critical missions to coordinate in meeting critical mission requirements;
(3) The term “critical mission”—
(A)
means those aspects of the missions of an installation, including mission essential operations, that are critical to successful performance of the strategic national defense mission;
(B)
may include operational headquarters facilities, airfields and supporting infrastructure, harbor facilities supporting naval vessels, munitions production and storage facilities, missile fields, radars, satellite control facilities, cyber operations facilities, space launch facilities, operational communications facilities, and biological defense facilities; and
(5)
The term “installation” has the meaning given the term “military installation” in section 2801(c)(4) of this title.
(Added Pub. L. 116–283, div. A, title III, § 316(a), Jan. 1, 2021, 134 Stat. 3516; amended Pub. L. 118–159, div. A, title III, §§ 313, 314(a), Dec. 23, 2024, 138 Stat. 1851; Pub. L. 119–60, div. B, title XXVIII, § 2847, Dec. 18, 2025, 139 Stat. 1319.)