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Instant-download, IEC & IEEE-compliant Excel tools, sizing templates, and calculation sheets engineered for power systems, renewables, and industrial infrastructure.
Calculations adhere to international IEC, IEEE, NBC, and ASHRAE standards.
Stop reinventing the wheel with unverified spreadsheets. Advanced Engineering Consultancy (AEC) provides ready-to-use, IEC & IEEE-compliant design sheets and calculation tools created and refined by experienced power system and renewable energy engineers.
Our engineering templates are the exact tools used daily by our internal consultancy team to execute multi-million dollar solar PV, energy storage, substation, MEP, and industrial infrastructure projects worldwide.
Every tool comes fully unlocked with transparent formulas, detailed documentation, input validation guidance, and clean printable output sheets suitable for client submittals and authority approvals.
No hidden macros or locked cells. See and customize every single formula to fit your project requirements.
Tested and validated across utility-scale solar farms, substations, and commercial facility projects.
Get immediate access to the spreadsheet files (.xlsx) and printable templates right after request.
Adheres strictly to IEC 60364, IEEE 80, NFPA 70, ASHRAE 90.1, and IS national building codes.
Instant-download, Excel-based engineering tools built to international standards — for engineers who need reliable sheets, fast.
Calculate optimal PV string configuration, temperature coefficient corrections, and DC/AC sizing for utility-scale arrays.
Automated voltage drop & current-carrying capacity calculations to IEC 60364-5-52 and IEEE standards.
Fast, reliable transformer capacity rating, efficiency evaluation, and loss capitalization calculations.
Battery storage capacity determination, C-rate optimization, degradation modeling, and round-trip efficiency sizing.
Standardized connected demand vs maximum demand load-list template for commercial and industrial electrical design.
Substation ground grid mesh and rod design, step & touch potential safety calculations to IEEE Std 80.
Busbar dynamic force and mechanical bending stress evaluation during short-circuit faults per IEC 60865-1.
Thermal comfort, cooling load, ventilation, and air balancing calculation template to ASHRAE/ISHRAE standards.
Buy Now or request instant download access — our engineering team responds within 24 hours.
