Practical tools and engineering resources to help you size, select, operate and maintain diesel generator systems with greater confidence — from initial planning to final specification.
Calculate My Generator SizeUse these engineering tools to size generators, calculate electrical loads, estimate fuel requirements, check cables and current, and plan complete standby or prime-power systems.
Browse practical generator charts, engineering reference tables, standards, databases, checklists and planning templates for diesel generator selection, installation, operation and maintenance.
Power requirements vary widely by application. Use these typical ranges as a quick reference, then confirm the final capacity using the actual connected load, starting demand and operating conditions.
| Industry | Typical Range | Recommended Resource |
|---|---|---|
| Construction Sites | 20–500 kVA | Generator Sizing Guide |
| Mining Operations | 100–2,000 kVA | Fuel Consumption Hub |
| Warehouses & Factories | 100–2,000 kVA | Load Calculation Guide |
| Data Centers | 500–4,000 kVA | Data Center Generator Guide |
| Hospitals & Healthcare | 200–1,000 kVA | Standby vs Prime Power Guide |
| Agriculture & Farms | 20–150 kVA | Generator Sizing Guide |
| Commercial & Retail | 30–100 kVA | kW vs kVA Guide |
These ranges are planning references only. Final generator selection should account for actual running load, motor starting demand, redundancy requirements, site conditions and future expansion.
Correct sizing is more than a calculation. These examples show how generator capacity, duty rating and system configuration change with the operating requirements of each site.
A regional data center deployed multiple 1,200 kW standby generator sets with N+1 redundancy to protect critical loads during utility outages. Automatic transfer switching and remote monitoring were integrated to support the site's required uptime targets.
A mining contractor required prime power for site offices, crushers and dewatering pumps in a remote location. Containerized generator sets were selected after a full load audit and matched to the project's phased equipment schedule, helping avoid unnecessary excess capacity and fuel use.
A manufacturing facility replaced an aging standby unit with a generator sized around its production equipment and planned expansion. A 10–25% reserve was included so future machinery can be added without immediately replacing the backup power system.
Use our sizing tools and practical resources to define your requirements, then let ShanHua engineers verify the capacity and configuration. Get a factory-direct solution backed by 25+ years of generator manufacturing experience.
A: It depends on your connected load, starting surges, and site conditions. Use our generator sizing calculator, or start with the application ranges in the table above. For a home, essentials-only backup typically needs 3–5 kW; a full-house setup can require 15–30 kW or more.
A: Yes. The generator sizing calculator, kW to kVA converter, fuel calculator, and public brochures are completely free with no registration. Only premium documents, such as the full sizing guide and maintenance checklist, require your email to download.
A: We use your email to send the appropriate specification sheets for your project and provide support if you need help sizing or configuring a generator. We do not share your details, and every email includes an unsubscribe option.
A: Yes. We export to more than 20 countries and support 50 Hz and 60 Hz, single-phase and three-phase systems, with global shipping and technical support. Importers, distributors, and project buyers can work directly with our export team.
A: Yes. We offer full OEM/ODM customization across our 8 kVA to 4,000 kVA range, including voltage, frequency, enclosure type, control system, and integration with existing equipment.
A: Every generator set undergoes 100% testing before delivery. Our quality and production systems are supported by certifications including ISO9001, CE, CCC, and ISO14001, with manufacturing processes continuously reviewed and controlled.
A: Most quotation requests receive a response within 24 hours. Send your load list or generator sizing calculator results, and our engineers will review the required capacity and prepare a tailored quotation.
A: Yes. We provide installation guidance, maintenance training, spare parts supply, and ongoing technical support throughout the service life of the equipment.
