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CAPABILITIES FOR INDUSTRY AND RESEARCH APPLICATIONS

Enabling scalable modeling capabilities through open-source applications

Production Cost Modeling

Advanced simulation capabilities for exploring system scheduling, method development, market opportunities, technology performance, and system reliability

Sienna\Ops

Resource Adequacy

Probabilistic resource adequacy calculations for system reliability analysis.

Sienna\Ops

Power Flow

Efficient power flow simulations using linearized-DC and AC power flow methods.

Sienna\Data

Transient Stability

Small signal stability analysis and full dynamic simulation capabilities for analyzing electro-magnetic transients and system stability in systems with large shares of inverter-based resources.

Sienna\Dyn

Power System Data Analysis

Efficient access to power system datasets in a rich ecosystem for scientific computing, data analysis, and visualization.

Sienna\Data
Why Choose Sienna

Open solutions for a transforming industry

  • Cutting-edge modeling capabilities

    Scalable modeling capabilities powered by Julia with the rapid evolution of open-source development.

  • Extensibility

    Open codebase and permissive licensing (BSD 3.0) enable endless customization, reuse, and commercialization opportunities.

  • Efficiency by design

    Designed with efficiency in mind, Sienna promotes efficient, reproducible workflows that allows users to identify issues early and generate results quickly.

about NREL

Focused on today's Energy Challenges

From breakthroughs in fundamental science to new clean technologies to integrated energy systems that power our lives, NREL researchers are transforming the way the nation and the world use energy. We built Sienna to enable energy systems analysis at a scale that matters for users around the globe.

Learn More view our story

Testimonials

Why we use Sienna

With its innovative data architecture and flexible modeling capabilities, Sienna has the potential to bridge the longstanding divide between planning and operations.

We built Sienna to address emerging industry challenges with scalable new modeling methods.

I started developing Sienna during my Ph.D. program to explore new methods at scale on real datasets.

Jim Himelic

Founding Principal, First Principles Advisory.

Clayton Barrows, Ph.D.

Sienna Principal Investigator, Researcher & Group Manager, NREL.

José Daniel Lara

Sienna Development Lead, Senior Researcher, NREL.
PUBLICATIONS

Latest Articles

The National Transmission Planning Study (Ch. 3 and 4)

A Model for Hybrid Systems for Production Cost Modeling Studies Considering Ancillary Services

Small-Signal Stability Impacts of Load and Network Dynamics on Grid-Forming Inverters

See All Publications