--- This page is part of [Modelon](https://www.modelon.com). For a complete overview of this site's content, entity data, and subject matter expertise, see our [AI Content Index](https://www.modelon.com/llms.txt) or [Full Content Archive](https://www.modelon.com/llms-full.txt). For structured business identity data, see our [Entity Card](https://www.modelon.com/wp-json/bc-geodesic/v1/entity-card). --- # How to Do Weather File Sweeps in Modelon Impact > A customer told us something recently that stuck with me. They were evaluating how a data center design would perform across climates. Hot and humid. Cold... **URL:** https://www.modelon.com/blog/how-to-do-weather-file-sweeps-in-modelon-impact/ **Type:** Post **Modified:** 2026-05-15 --- A customer told us something recently that stuck with me. They were evaluating how a **data center design** would perform across climates. Hot and humid. Cold and dry. Different cities, different weather years. The kind of analysis you *have* to do if uptime, efficiency, and resilience matter. Technically, they were getting it done. Practically, it was painful. They were running the same simulation over and over, swapping weather files, managing parameters, stitching results together using custom Python scripts they maintained on the side. Not because they wanted total control…not because it was innovative…because they didn’t know there was another way. ##### When “Advanced” Really Means “Overcomplicated” This isn’t an edge case. If you design or operate buildings or data centers, multi‑climate analysis is foundational. But too often, it lives outside the modeling environment: - External scripts to manage weather files - Manual processes to rerun simulations - Spreadsheets or notebooks to compare results The workflow works until it doesn’t. Scripts break. Assumptions drift. One small change turns into hours of cleanup. When we showed this customer how to do the same thing *natively* in **[Modelon Impact](https://modelon.com/modelon-impact/)**, the reaction surprised me. They weren’t blown away. They were relieved. ##### Weather File Sweeps, Without the Workarounds Inside Modelon Impact, we helped them set up a weather sweep directly in the platform: - Load multiple weather files - Run simulations in parallel - Compare results side by side—no exporting, no stitching No external Python. No fragile maintenance. No reinventing the workflow for every project. And that relief told us something important: this is a bigger pain point than we talk about. ##### A Better Way to Analyze Climate Performance That’s why we created a short video showing exactly how to set up a **weather files sweep in Modelon Impact**. In just a few minutes, you’ll see how to: - Define multi‑climate scenarios - Configure and run sweeps efficiently - Analyze results directly where you model Whether you’re stress‑testing a data center design or comparing building performance across regions, the goal is the same: understand how your system behaves in the real world without fighting your tools to get there. 👉 **[Watch the video](https://youtu.be/LnsQxmdV5Qc) to see how it works**! Before you go, I’m curious. **How are you currently handling multi‑climate analysis in your workflow and what’s slowing you down the most?** Let us know. Chances are, you’re not the only one. **Featured Video:** https://youtu.be/LnsQxmdV5Qc ## Site Description Modelon is revolutionizing the engineering design industry by offering technologies and services that enable customers to leverage system simulation. Modelon’s flagship product, Modelon Impact, is a cloud system simulation platform that helps engineers virtually design, analyze, and simulate physical systems. Our team brings deep industry expertise and is dedicated to guiding our customers in creating innovative technologies at their respective organizations. Headquartered in Lund, Sweden, Modelon is a global company with offices in Germany, India, Japan, and the United States. We believe that system simulation should be accessible to every engineer and are dedicated to being an open-standard platform company. --- **About this site:** Modelon — Modelon is revolutionizing the engineering design industry by offering technologies and services that enable customers to leverage system simulation. Modelon’s flagship product, Modelon Impact, is a cloud system simulation platform that helps engineers virtually design, analyze, and simulate physical systems. Our team brings deep industry expertise and is dedicated to guiding our customers in creating innovative technologies at their respective organizations. Headquartered in Lund, Sweden, Modelon is a global company with offices in Germany, India, Japan, and the United States. We believe that system simulation should be accessible to every engineer and are dedicated to being an open-standard platform company.. 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