High-efficiency transformer options
Reduce the standing losses that accumulate every hour
Hismar Solutions coordinates amorphous-core cast-resin and oil-immersed transformer options for BESS, microgrid, industrial, commercial, renewable, and utility projects.
Lower no-load loss
A practical efficiency upgrade for continuously energized systems
No-load loss occurs whenever a transformer is energized, regardless of the connected load. Amorphous metal uses a thin, non-crystalline magnetic ribbon that reduces hysteresis and eddy-current losses compared with conventional CRGO steel.
66%-82%
listed no-load-loss reduction
8,760
energized hours per year
$4,007
2,000 kVA oil example/year
Texas savings example
Recalculated using a Texas commercial electricity price
The comparison uses $0.0855/kWh, the U.S. Energy Information Administration's 2024 annual average commercial retail electricity price for Texas. This customer-side rate is used for an ERCOT-region screening example; it is not a wholesale ERCOT settlement price or a guaranteed tariff.
Amorphous cast-resin transformers
| Rating (kVA) | CRGO loss (W) | Amorphous loss (W) | Reduction (W) | Annual reduction (kWh) | Annual savings |
|---|---|---|---|---|---|
| 100 | 670 | 120 | 550 | 4,818 | $412 |
| 300 | 1,080 | 250 | 830 | 7,271 | $622 |
| 500 | 1,370 | 345 | 1,025 | 8,979 | $768 |
| 750 | 1,650 | 450 | 1,200 | 10,512 | $899 |
| 1,000 | 1,980 | 585 | 1,395 | 12,220 | $1,045 |
| 1,500 | 3,150 | 900 | 2,250 | 19,710 | $1,685 |
| 2,000 | 4,110 | 1,200 | 2,910 | 25,492 | $2,180 |
| 2,500 | 5,050 | 1,600 | 3,450 | 30,222 | $2,584 |
| 3,000 | 6,740 | 2,300 | 4,440 | 38,894 | $3,325 |
Amorphous oil-immersed transformers
| Rating (kVA) | CRGO loss (W) | Amorphous loss (W) | Reduction (W) | Annual reduction (kWh) | Annual savings |
|---|---|---|---|---|---|
| 100 | 665 | 80 | 585 | 5,125 | $438 |
| 300 | 1,400 | 160 | 1,240 | 10,862 | $929 |
| 500 | 2,040 | 230 | 1,810 | 15,856 | $1,356 |
| 750 | 2,400 | 300 | 2,100 | 18,396 | $1,573 |
| 1,000 | 3,000 | 400 | 2,600 | 22,776 | $1,947 |
| 1,500 | 4,500 | 450 | 4,050 | 35,478 | $3,033 |
| 2,000 | 6,000 | 650 | 5,350 | 46,866 | $4,007 |
Method: annual energy reduction = (CRGO no-load loss - amorphous no-load loss) x 8,760 / 1,000. Annual savings = annual energy reduction x $0.0855/kWh. Listed losses are comparative source data; project-specific guaranteed losses must be confirmed in the approved supplier proposal.
Available configurations
Cast-resin and oil-immersed designs
Cast-resin ratings: single phase up to 500 kVA and three phase up to 5 MVA
Oil-immersed ratings: single phase up to 167 kVA and three phase up to 15 MVA
50 Hz or 60 Hz configurations with copper or aluminum windings
Project-specific cooling, taps, accessories, terminal arrangements, and insulation levels
Applicable IEC, IEEE, CSA, efficiency, test, and utility requirements coordinated during quotation
Project qualification
Compare total owning cost, not purchase price alone
Hismar Solutions can coordinate transformer sizing, specification review, supplier quotation, loss evaluation, submittal review, and BESS or microgrid interface requirements. Final selection should consider purchase price, no-load and load losses, duty cycle, impedance, sound, temperature rise, maintenance, delivery, and compliance.