Everyday LV calculations, every number traceable.
Cable sizing, voltage drop, short-circuit and protection discrimination to a standard consultants accept, without the overhead of a full power-systems suite. Original methods, original data.
For engineers who sign their calculations.
Design calculations and discrimination studies that go into a submission with the method visible, a reviewer's sign-off recorded and the report in the authority's expected format.
Cable schedules, voltage-drop checks and short-circuit ratings for shop drawings and material submittals, produced in-house without waiting on a consultant's suite.
A reviewer role with its own sign-off, an audit log of every change, and reports that show the steps rather than just the answer.
Jurisdiction overlays for DEWA and SBC / SEC, with more added as clients need them, over calculations that follow IEC methods.
The calculations most projects need, done properly.
Cable sizing and voltage drop
Current-carrying capacity, derating, voltage drop and earth-fault loop checks, with the calculation trace on every result.
IEC 60909 short-circuit
Maximum and minimum fault levels at every node of the radial network, feeding the protection and equipment rating checks.
Protection discrimination
Selectivity studies with time-current curves, device libraries and clear pass or fail against the upstream and downstream pairs.
Compliance register
Jurisdiction overlays for DEWA and SBC / SEC applied as a register of checks, each one tied to the calculation that satisfies it.
Engineer and reviewer roles
Separate roles, a reviewer sign-off on every report and an audit log of who changed what and when.
Submission-ready reports
PDF and Excel reports where every number carries the steps that produced it, ready for the submission file.
Real screens from GridCalc 2.0.
Example project: a tower LV distribution at 400 V, 50 Hz, with the DEWA overlay applied.
Model, calculate, review, submit.
Licensed per user, with team plans for consultancies.
What the licence includes
- Hosted access for each named engineer or reviewer
- Device libraries and jurisdiction overlays, kept current
- Training, user guides and support with an engineer answering
- Report templates in your firm's format
What stays yours
- Your projects, models and reports, exported on request
- Your reviewer sign-offs and audit history
- No lock-in: terms are set out in a written subscription agreement
- Team plans for consultancies with shared libraries and projects
Frequently asked
Is GridCalc a replacement for a full power-systems suite?
No. GridCalc covers the everyday low-voltage calculations most projects need, to a standard consultants accept, with less overhead. Large transmission or dynamic studies remain the domain of specialist suites.
How is traceability handled?
Every number on a report carries the inputs, method and steps that produced it, and a reviewer's sign-off is recorded in the audit log.
How is GridCalc licensed?
Per user, with team plans for consultancies. Hosted and supported by Hikstech.
Which jurisdictions are covered?
Overlays are available for DEWA and SBC / SEC requirements, with more added as clients need them. The underlying calculations follow IEC methods.
Can we use our own device data?
Yes. Device libraries can be extended with manufacturer curves and ratings you supply, and the source of each device record is kept on the project.
Run one of your own networks through GridCalc.
Bring a single-line diagram and cable schedule to the demonstration and see the trace behind every number.