Electrical engineering tools
Choose a calculator, compare equipment, prepare a project or inspect the complete API tool reference.
Transformer sizing calculator
Estimate transformer kVA from connected load, power factor, diversity and growth reserve.
Transformer loss and payback calculator
Compare energy losses, annual operating cost and optional simple payback for two transformer designs.
Country grid compatibility checker
Screen transformer electrical parameters against preliminary country grid references.
Electricity price comparison
Electricity price references with source periods, consumer scope, tax treatment and separate fixed charges. Verified tariffs and averages are distinguished from unverified legacy records.
Raw materials and escalation tools
Monthly copper, aluminium, CRGO and mineral insulating oil references. Dielectric fluid scenarios are identified separately; fluid escalation requires dated supplier quotes.
Transformer comparison
Choose catalog transformers to compare specifications, losses and preliminary parallel-operation compatibility.
Residential and commercial solar systems
Browse top-selling B2C and commercial solar panels, microinverters, hybrid inverters, batteries and complete DIY starter kits with guided compatibility matching.
Single-line diagrams and studies
Sign in to create SLD documents, run supported studies, review revisions and export project results.
RFQ and technical PDF preparation
Prepare quotations from catalog selections and project data. Review specifications and confirm before submission.