Department of Energy

The Department of Energy (DOE) leads federal efforts to keep America’s energy reliable, affordable, and secure while advancing scientific discovery and managing nuclear responsibilities established when the agency was created in 1977.

Energy and innovation

DOE funds research at national laboratories, supports renewable energy and efficiency programs, and backs technologies—from advanced nuclear to long‑duration storage—that help modernize the nation’s energy mix and economy.

Nuclear security and environmental work

Through the National Nuclear Security Administration and other offices, DOE safeguards the nuclear weapons stockpile, supports naval nuclear propulsion, and manages cleanup of legacy contamination from past energy programs.

Infrastructure resilience

DOE helps protect and modernize critical energy infrastructure—including the electric grid—and coordinates federal efforts to strengthen resilience against storms, cyberattacks, and other threats (see Is America’s Electric Grid Safe? The White House Plan to Protect Power Infrastructure).

Public mission

Balancing energy innovation, environmental stewardship, and national security, DOE informs policy, manages strategic energy reserves, and coordinates emergency responses to keep energy flowing for American communities and industry.