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Power procurement calculators

Estimate transformer sizing UPS runtime generator scope BESS duration and voltage drop, turn calculator results into reviewed data center power RFQs.

3 ship-first tools7 evaluated candidatesProcurement estimates only
Interactive estimators

RFQ-ready sizing prechecks

Use these as procurement estimates for early supplier discussions. Final design, protection, code compliance, and manufacturer selection still need qualified engineering review.
kW
%
%
V
MV transformerThree-phase estimate
1,080 kW

Demand load

1,200 kVA

Base apparent load

1,500 kVA

Recommended minimum

1,500 kVA

Nearest standard

1,804.2 A

Secondary current

80%

Selected utilization

Use in RFQ

Results are estimates for supplier conversations, not final equipment selection.

Ship first

Best near-term tools because they improve RFQ completeness with manageable product risk.

Ship firstMedium risk

Transformer Load Sizing Estimator

Buyer question: What transformer kVA range should this project quote before detailed design?
Why it matters: Transformer capacity is one of the earliest procurement blockers for data center and industrial power projects.
connected loaddemand factorgrowth reserveprimary voltagesecondary voltage

Estimated transformer kVA range, voltage summary, and RFQ-ready specification notes.

MV TransformerDry-Type TransformerOil-Filled TransformerCast-Resin Transformer
Ship firstMedium risk

UPS Runtime And Battery Autonomy Estimator

Buyer question: How much runtime should we ask UPS suppliers to quote for the critical load?
Why it matters: Buyers often know the IT or process load but need help translating runtime targets into supplier-ready UPS requirements.
critical loadruntime minutesredundancybattery chemistryefficiency

Estimated UPS kW/kVA need, autonomy target, redundancy note, and RFQ input summary.

UPS SystemDC Power SystemBESS
Ship firstMedium risk

Generator Right-Sizing Precheck

Buyer question: What standby generator range should we ask suppliers to price?
Why it matters: Generator RFQs get delayed when buyers omit motor starts, UPS step loading, fuel autonomy, and redundancy assumptions.
critical loadlargest motorstep loadfuel autonomyredundancy

Indicative generator kW/kVA range and assumptions that suppliers need to validate.

Diesel GeneratorGas GeneratorUPS System

Next

Useful after the first estimators prove repeat buyer demand.

NextHigh risk

Voltage Drop Quick Check

Buyer question: Could the planned feeder distance create a voltage drop issue?
Why it matters: Long electrical runs affect cable, busway, and transformer decisions, especially in campus and modular data center layouts.
load currentvoltagerun lengthphase countconductor material

Preliminary voltage drop percentage and a warning level for supplier discussion.

BuswayPDULV SwitchgearMV Switchgear
NextMedium risk

BESS Duration And Energy Estimator

Buyer question: How many MWh should a BESS supplier quote for a target support window?
Why it matters: Energy duration connects project economics, backup strategy, and supplier shortlist quality.
load profiledurationusable depth of dischargeround-trip efficiency

Indicative MWh requirement, C-rate notes, and supplier RFQ assumptions.

BESSDC Power System
NextLow risk

Rack Density Power Chain Estimator

Buyer question: What upstream power chain does this rack density imply?
Why it matters: AI racks quickly expose gaps between IT load assumptions and available UPS, PDU, busway, and transformer capacity.
rack countaverage kW per rackpeak kW per rackredundancy

Estimated IT load, upstream power allowance, and equipment categories to quote.

PDUBuswayUPS SystemLiquid-Cooled Power

Later

Worth keeping visible, but less urgent than RFQ-scoping calculators.

LaterLow risk

Power Loss And Efficiency Cost Estimator

Buyer question: How much could efficiency differences change annual operating cost?
Why it matters: Efficiency deltas can justify supplier shortlists when transformer, UPS, or cooling-assisted power equipment options look similar.
loadhours per yearefficiency option Aefficiency option Benergy price

Estimated annual energy cost difference and payback framing.

UPS SystemMV TransformerLiquid-Cooled Power

Safety boundary

These calculators should produce procurement estimates, missing-input prompts, and RFQ notes. They should not present stamped engineering calculations or local code compliance decisions as final answers.

Best first implementation

Start with transformer load sizing, UPS runtime, and generator precheck because they map directly to supplier categories and reduce incomplete RFQs.

Start RFQ