A new utility tender every Monday. Set your core steel, flux density, current density, cooling and margin — the engine computes your losses and the utility evaluates your bid at real capitalization rates. Three rivals have already submitted sealed bids. Lowest compliant evaluated cost takes the contract.
| Rating | 100 MVA · 220/33 kV |
| Frequency / phases | 50 Hz · 3-ph |
| Impedance window | |
| Max NLL guarantee | |
| Max LL guarantee | |
| Max noise | |
| Max transport mass | |
| NLL capitalized at | |
| LL capitalized at | |
| Copper this week |
Evaluated cost = bid price + NLL×rate + (LL+cooling aux)×rate. Non-compliant bids are disqualified at design review.
Every choice moves three numbers: what it costs to build, what it burns for 30 years, and whether it passes design review.
| BIDDER | PRICE | NLL | LL+AUX | EVALUATED | STATUS |
|---|
The same physics every design office argues about, reduced to its commercial core.
Push B higher and the core shrinks — cheaper steel bill, but specific losses climb steeply near saturation, and so does noise. Premium grades buy you headroom.
Higher J means less copper to buy but more I²R to burn — and a hot-spot your cooling scheme has to survive. Designers price-walk J right up to the loss guarantee.
Utilities don't buy the cheapest transformer; they buy the cheapest 30 years. $4,500/kW on no-load loss turns 10 kW of core loss into $45,000 of bid handicap.
The weekly DGA case file is waiting in the Test Bay.
Open This Week's Case →