Eliminate Risk
Standardized logic removes formula errors common in Excel.
Simply Substations empowers electrical engineers with verifiable IEEE, NFPA & NEC based tools for complex infrastructure. Built on physics, not approximations.
Bridging the gap between prone-to-error manual spreadsheets and opaque legacy software.
We founded this platform to eliminate the risks associated with manual spreadsheet calculations. Our mission is to provide transparent, verifiable engineering tools that you can trust with your professional license.
Standardized logic removes formula errors common in Excel.
No "black box" calculations. See every step of the math.

Simply Substations isn't just a calculator; it's a validation engine. We provide a suite of tools that cover the entire lifecycle of electrical design, from load estimation to arc flash hazard analysis.
Explore all features →Verify percentage voltage drop for feeders and branch circuits based on IEEE Std. 141, 339 & NEC.
Calculate arc flash boundary & PPE selection for high-voltage systems as per IEEE Std. 1584 & NFPA 70E.
Determine grounding conductor size based on fault current and duration as per IEEE Std. 80
Our development process mirrors the rigor of the physical infrastructure we help design.
We build from fundamental physics equations, not just lookup tables, ensuring accuracy even in edge cases.
Every output includes a "Show Math" toggle that reveals the exact step-by-step derivation used.
Calculations are version-pinned. Updates to standards won’t silently break your past projects.
Our calculations and algorithm library are reviewed by certified engineers, and also independently reviewed by separate engineers.
Allows for rapid iteration during FEED and detailed design phases. We generate automated reports for client deliverables in minutes.
RAPID ITERATIONWe verify existing capacity before adding new equipment. Maintaining up-to-date arc flash labels for safety compliance is seamless.
SAFETY COMPLIANCEValidates component selection against calculated short circuit levels instantly. Ensures perfect protection coordination between devices.
COMPONENT VALIDATIONEvery line of code affecting a calculation undergoes a triple-check process: unit testing against known standard examples, integration testing across modules, and manual review by a licensed Professional Engineer.
Limitations of Liability: While Simply Substations employs rigorous testing standards, the final engineering judgment rests with the licensed professional sealing the documents. Our software is a decision-support tool, not a substitute for professional engineering experience. Users are encouraged to verify critical calculations manually or via alternative methods.
Start with our free tier or schedule a demo for enterprise needs.