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Power System Modeling

Plan at Scale. Model the Full Grid.

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If your model can’t see the full grid, your decisions are exposed.

 

Power system planning has never been more demanding. More scenarios, tighter timelines, and a grid that's changing faster than most modeling tools were built to handle. Yet most teams are still relying on tools that weren't built for this moment: fragmented workflows, zonal-only models, and infrastructure that creates bottlenecks when you need answers most.

EnCompass is a unified power system planning and market simulation platform that brings together capacity expansion, production cost modeling, and powerflow — with both zonal and nodal analysis — in a single system. One platform. No stitching. No blind spots.

See How it Works
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The Difference is Clear

Where Legacy Modeling Breaks Down and EnCompass Delivers

Where EnCompass Excels
Where Others Fall Short

Fully integrated platform. Capacity expansion, production cost modeling, and powerflow in one system

Competitors require separate tools for each layer, creating manual handoffs, version drift, and reconciliation risk

Seamless zonal-to-nodal modeling with shared data and workflows

Most competitors force a tradeoff. Zonal-first tools miss congestion and deliverability risk; nodal tools lack long-term planning capability

Single-pass co-optimization of energy, ancillary services, and capacity

Competing platforms rely on multi-pass or iterative approaches that miss key interactions, especially for storage and reserves

Flexible deployment. Cloud or on-premise, with elastic compute when you need it

Legacy solutions aren't purpose-built for elastic cloud scaling; many rely on manual scaling or core-based pricing that limits throughput

Embedded powerflow and visualization built in

Competitors require add-ons or external tools for powerflow, increasing cost and workflow complexity

Intuitive workflows designed for broader team adoption

Legacy platforms are complex to configure, limiting use to a small group of power users and creating organizational risk

From Our Partners

Trusted by the Teams Who Can't Afford to Get it Wrong

"We used to spend several man-hours in data processing time to extrapolate and manage data. Now our analysts can spend time doing more critical tasks."
ACES,Energy Marketing & Services
"The EnCompass model serves as the cornerstone of our analytical process. It allows us to navigate and make sense of a market that's evolving at extraordinary speed, helping us to anticipate changes and identify opportunities."
Arebise (Xiaogeng) Deng,Senior Fundamental Analyst, Linea Energy
"EnCompass has made it far easier to control our carbon footprint by providing visibility and insights. Because of the constraints and flow gates that enable us to watch what comes into Colorado, all we do is set the carbon limit and let the model run. We have yet to miss a target."
Tri-State,Wholesale Power Supplier & Utility

Built for How Modern Planning Teams Actually Work

  • IRP

    Replace Disconnected Tools With One Integrated Model

    Eliminate the handoffs between capacity expansion, production cost, and powerflow. EnCompass brings everything into a single system with shared data and assumptions, so your team spends less time reconciling models and more time analyzing results. The outcome is faster studies, fewer errors, and decisions you can confidently defend.
  • EnCompass Software_IRP Capacity Report

    Model the Full Grid, Not Just Part of It

    Move beyond the tradeoff between long-term planning and nodal precision. EnCompass combines zonal and nodal modeling in one workflow, giving you visibility into congestion, curtailment, and deliverability risks before they impact outcomes. Identify issues earlier and make decisions that reflect how the grid actually operates.
  • EnCompass platform

    Capture Real Market Dynamics in Every Scenario

    Single-pass co-optimization of energy, ancillary services, and capacity ensures your results reflect true system behavior. Unlike multi-pass or iterative approaches, EnCompass captures the interactions that drive prices, congestion, and storage performance, helping you avoid misvalued assets and uncover more reliable insights. 
  • EnCompass Project Capacity

    Run More Scenarios Without Slowing Down

    Whether deployed in the cloud or on-premise, EnCompass scales with your modeling demands. Run more scenarios, explore more sensitivities, and respond faster to changing conditions without infrastructure constraints or manual workarounds. Give your team the freedom to analyze what matters, when it matters.

See what EnCompass Can Do for Your Team

Request a personalized demo and we'll tailor it to your workflows, use cases, and the questions that matter most to your planning cycle.

Helpful Resources: What We’re Watching in the Market

Greg Toothaker | 2026 | 2 min read

Boost Productivity with Cloud-Based Power System Modeling

EnCompass Cloud is built to help planning teams run faster, more accurate analyses (without the IT overhead and infrastructure constraints that slow you down). 
Read the Blog
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Yes Energy | 2026 | 2-min read

Yes Energy Acquires Enelytix to Expand Nodal Modeling and Forecasting Platform

Yes Energy is expanding its investment-grade modeling capabilities, combining Enelytix's nodal forecasts with EnCompass to deliver a more analytically powerful platform. 

Read the News
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Yes Energy | 2026 | 5-min read

How a Developer Leverages Nodal Modeling for Renewable Energy Investment Decisions

Using EnCompass for nodal modeling, Linea Energy conducted a detailed analysis of a potential acquisition project in ERCOT.

Read the Case Study
Case Study

Frequently Asked Questions

How is EnCompass different from tools like Aurora, PLEXOS, PROMOD, or GridView?

EnCompass unifies capacity expansion, production cost modeling, and powerflow with both zonal and nodal analysis in a single system. Most competing solutions require multiple tools to cover the same analytical ground — creating data reconciliation overhead, version drift, and workflow fragmentation. EnCompass eliminates that by keeping everything in one integrated environment with a shared data foundation.
Can EnCompass handle both long-term planning and short-term operational analysis?

Yes. EnCompass supports both integrated resource planning and production cost modeling in one platform, allowing teams to move fluidly between long-term capacity decisions and near-term operational analysis without rebuilding models or reconciling datasets across tools.
Is EnCompass available in the cloud?

Yes. EnCompass is available in both cloud and on-premise deployments. EnCompass Cloud provides elastic compute that scales automatically with your workload. No hardware procurement, no manual scaling, no IT overhead. Teams that prefer on-premise deployment retain full control within their existing infrastructure. Both options deliver the same EnCompass workflows and capabilities.
How difficult is it to migrate from our current platform?

The Yes Energy team works closely with customers through onboarding and implementation, including on-site support where needed. Customers like ACES and Tri-State were able to reach production mode quickly following implementation. We'll tailor the transition plan to your timeline, existing workflows, and study cycles. Our team brings deep industry expertise, helping translate your existing workflows into EnCompass so you can start generating value as quickly as possible.
Who at our organization should be involved in evaluating EnCompass?

Typically the evaluation involves both the planning team who will use the platform day-to-day — resource planners, production cost modelers, transmission analysts — and the director or manager accountable for planning outcomes and infrastructure decisions. We're happy to structure the demo and discovery process to address both the technical and strategic dimensions of the decision.