![Energy](_assets/images/featurettes/energy_320x320.png)
![Climate modeling](_assets/images/featurettes/climate_320x320.png)
Infrastructure
We help secure the nation's critical energy infrastructure against natural or malicious disruption.
![NISAC](_assets/images/featurettes/infrastructure_320x320.png)
![](_assets/images/featurettes/researcher_320x320.png)
Access to reliable, affordable, and sustainable sources of energy is essential for all modern economies. Since the late 1950s, Americans have not been energy self-sufficient. Our addiction to foreign oil and fossil fuels puts our economy, our environment, and ultimately our national security at risk.
National security is Sandia's core mission, and Energy, Climate, & Infrastructure Security (ECIS) helps deliver on that mission.