I 
119TH CONGRESS 
1ST SESSION H. R. 4338 
To develop weather tools for electricity system planning and operational 
modeling, expand research on extreme weather event scenarios for energy 
utility companies and regulators, and for other purposes. 
IN THE HOUSE OF REPRESENTATIVES 
JULY 10, 2025 
Ms. LEGER FERNANDEZ (for herself, Mr. CASTEN, Ms. CASTOR of Florida, 
and Ms. ROSS) introduced the following bill; which was referred to the 
Committee on Science, Space, and Technology 
A BILL 
To develop weather tools for electricity system planning and 
operational modeling, expand research on extreme weath-
er event scenarios for energy utility companies and regu-
lators, and for other purposes. 
Be it enacted by the Senate and House of Representa-
tives of the United States of America in Congress assembled, 
SECTION 1. SHORT TITLE. 
This Act may be cited as the ‘‘Weather-Safe Energy 
Act of 2025’’. 
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SEC. 2. ESTABLISHMENT OF WEATHER-SAFE ENERGY PLAT-
FORM AND SUPPORT FOR ELECTRICITY SYS-
TEM PLANNING AND OPERATIONAL MOD-
ELING. 
(a) INITIAL REPORT ON METEOROLOGICAL AND EX-
TREME WEATHER EVENT DATA.—Not later than 6 
months after the date of the enactment of this section, 
the Secretary shall submit to the appropriate congres-
sional committees a report containing the following: 
(1) A summary of current efforts in federally 
funded research and development centers to develop 
the use of meteorological, hydrological, and extreme 
weather event data for energy system modeling. 
(2) A description of the specific actions that the 
Secretary shall take to carry out subsection (b). 
(b) WEATHER-SAFE ENERGY PLATFORM DIGITAL 
TOOL.— 
(1) IN GENERAL.—The Secretary shall develop 
and maintain an open-access digital tool, to be 
known as the ‘‘Weather-Safe Energy Platform’’ (in 
this section, referred to as the ‘‘Platform’’), to pro-
vide high-resolution data of meteorological and 
hydrological variables suitable for electricity system 
planning and operational models. 
(2) AVAILABILITY
OF
PLATFORM.—The Sec-
retary shall make available the Platform not later 
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than 2 years after the date of the enactment of this 
section. 
(3) CONTENTS OF PLATFORM.—The Platform 
shall include the following, with respect to the 
United States: 
(A) Meteorological and hydrological vari-
ables derived from state-of-the-science atmos-
pheric models used in international model inter-
comparison 
projects, 
regional 
forecasting 
datasets, and reanalysis data, as determined ap-
propriate by the Secretary, at spatiotemporal 
resolutions suitable for electricity system plan-
ning and operational modeling. 
(B) 
Information 
that 
maintains 
spatiotemporal correlation of the meteorological 
and hydrological variables to ensure a realistic 
and reliable representation of conditions that 
may contribute to cascading failures of elec-
tricity systems. 
(C) Historical data and projections of me-
teorological and hydrological variables across 
short-, medium-, and long-term timelines, devel-
oped using methods that ensure consistency 
with standard practices for evaluating elec-
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tricity system planning and operational deci-
sions. 
(D) Sufficient information to provide for 
ensemble 
model 
scenarios 
that 
support 
narrative- or storytelling-based approaches to 
modeling current and future conditions and ef-
fects on electricity systems. 
(E) Up-to-date information provided by 
ongoing relevant research projects. 
(4) STAKEHOLDER INPUT.—The Secretary shall 
include input from stakeholders determined appro-
priate by the Secretary, including utility companies, 
municipalities, independent system operators, re-
gional transmission operators, Federal and State 
regulators, and academic experts, to ensure the Plat-
form meets the data needs of such stakeholders in 
the energy modeling activities of the stakeholders. 
(5) FIT-FOR-PURPOSE
DATA
STRATEGY.—The 
Secretary shall develop and implement a strategy to 
carry out the following: 
(A) Evaluate whether the data in the Plat-
form are appropriate for specific electricity sys-
tem planning and operation applications. 
(B) Ensure that each dataset in the Plat-
form includes, or is accompanied by, clear and 
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standardized metadata that includes informa-
tion on best-practice use cases such as trend de-
tection, uncertainty analysis, and the study of 
extreme event intensification. 
(C) Establish and implement procedures to 
regularly review and update datasets and the 
metadata of the datasets to account for and re-
flect advances in science and the evolving needs 
of stakeholders. 
(c) RESEARCH
AND MODELING INTO EXTREME 
WEATHER EVENT SCENARIOS.— 
(1) IN
GENERAL.—The Secretary shall take 
such actions, as determined appropriate by the Sec-
retary, to support research projects to enhance the 
understanding and modeling of the changes to ex-
treme weather events that affect the planning and 
operations of electricity systems. 
(2) GRANTS FOR INCREASED RESEARCH.—The 
Secretary shall make funds available, through grants 
made on a competitive basis, contracts, and coopera-
tive agreements, to federally funded research and de-
velopment centers, institutions of higher education, 
and other eligible independent research institutions 
(as determined by the Secretary) to carry out the re-
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search projects and modeling referred to in para-
graph (1). 
(3) INTEGRATION OF RESEARCH FINDINGS INTO 
THE PLATFORM.—The Secretary shall integrate into 
the Platform such findings from the research 
projects and modeling referred to in paragraph (1) 
to assist energy utility companies and regulators 
with respect to planning for, and responding to, 
changes in extreme weather events. 
(d) TECHNICAL ASSISTANCE.— 
(1) IN GENERAL.—The Secretary shall provide 
training resources and technical assistance to utility 
companies, grid operators, municipalities, State reg-
ulators, and other interested stakeholders. 
(2) GOALS.—In carrying out paragraph (1), the 
Secretary shall carry out the following: 
(A) Offer workshops, training sessions, 
and distribute educational materials to stake-
holders to improve understanding of how mete-
orological and hydrological variables and ex-
treme weather events affect electricity system 
planning and operations. 
(B) Provide technical assistance with re-
spect to the following: 
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(i) Utilizing the tools and resources 
available through the Platform. 
(ii) Integrating scenario data into 
electricity system planning and operational 
models. 
(C) Facilitate collaboration and the ex-
change of knowledge among stakeholders to 
identify best practices for electricity system 
planning and operations with respect to changes 
in meteorological and hydrological variables and 
changes in extreme weather events. 
(e) REPORTS TO CONGRESS.—Not later than 5 years 
after the date of the enactment of this section, and on 
a periodic basis thereafter not less frequently than every 
3 years, the Secretary shall submit to the appropriate con-
gressional committees a report containing descriptions of 
the following: 
(1) The funds used to carry out this section, in-
cluding grants made pursuant to subsection (c). 
(2) The outcomes achieved through such 
grants. 
(3) The development and deployment of the 
Platform. 
(4) The advancements in the research carried 
out pursuant to subsection (b). 
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(5) The extent to which utility companies, grid 
operators, and Federal and State regulators have 
utilized the Platform. 
(6) The activities and effects of the training re-
sources and technical assistance provided under sub-
section (d). 
(f) IMPLEMENTATION.—The Secretary shall carry 
out— 
(1) subsections (a) and (c) through the Office 
of Electricity of the Department of Energy, in con-
sultation with such agency heads as determined ap-
propriate by the Secretary; and 
(2) subsections (b) and (d) through research 
and development centers funded by the Secretary. 
(g) DEFINITIONS.—In this section: 
(1) APPROPRIATE
CONGRESSIONAL
COMMIT-
TEES.—The term ‘‘appropriate congressional com-
mittees’’ means the following: 
(A) The Committee on Energy and Com-
merce of the House of Representatives. 
(B) The Committee on Energy and Nat-
ural Resources of the Senate. 
(2) ENSEMBLE MODEL.—The term ‘‘ensemble 
model’’ means a collection of multiple simulations 
used to estimate uncertainty in projections of mete-
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orological phenomena, including extreme weather 
events, that provides a range of possible outcomes 
with respect to such phenomena. 
(3) EXTREME
WEATHER
EVENT.—The term 
‘‘extreme weather event’’ means severe and abnor-
mal earth system phenomena that can significantly 
affect the operations of electricity systems, including 
hurricanes, coastal or inland flooding, wildfires, 
snowpack 
or 
permafrost 
thaw, 
and 
extreme 
droughts. 
(4) INSTITUTION OF HIGHER EDUCATION.—The 
term ‘‘institution of higher education’’ has the 
meaning given that term in section 101 of the High-
er Education Act of 1965 (20 U.S.C. 1001). 
(5) METEOROLOGICAL
AND
HYDROLOGICAL 
VARIABLES.—The 
term 
‘‘meteorological 
and 
hydrological variables’’ includes temperature, humid-
ity, wind speed, solar radiation, precipitation, 
streamflow, and other atmospheric and water-related 
measurements. 
(6) OPEN-ACCESS
DIGITAL
TOOL.—The term 
‘‘open-access digital tool’’ means a computational re-
source, including software, datasets, and modeling 
frameworks, that is designed to support energy sys-
tem resilience planning and operational decision- 
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