Energy, turned into dollars

Delfield 6151XL-S

41.5 cu ft vertical solid door freezer. Certified at 7.74 kWh a day, or 2,825 kWh a year if it runs every day. #56 of 83 vertical solid door freezers 30–50 cu ft, by yearly cost.

Source: EPA ENERGY STAR Certified Commercial Refrigerators and Freezers dataset, data.energystar.gov. Refreshed Oct 24, 2026.

$409 at 14.47¢/kWh commercialper year
$4,088 at 14.47¢/kWh commercialover 10 years
$148 at 14.47¢/kWh commercial10-yr extra vs. similar size

Recall check

No CPSC recall found for this brand's commercial refrigerators and freezers as of Oct 24, 2026

We search CPSC recall titles and product names for commercial refrigerators, freezers and merchandisers. Always confirm at cpsc.gov.

Rebates

Utility rebates for commercial equipment change by location and program. Check rebates near you.

Commercial electric rate14.47¢per kWh, the U.S. average for businesses (EIA Electric Power Monthly, Table 5.6.A, commercial sector, August 2026). Your utility tariff may differ, including demand charges.

Yearly cost, side by side

This model$409 at 14.47¢/kWh commercial
Typical similar-size model (52 vertical solid door freezer models)$394 at 14.47¢/kWh commercial
Thirstiest certified vertical solid door freezers$745 at 14.47¢/kWh commercial
Good to know
For business buyers: commercial units are tested at a fixed door-opening schedule. A busy kitchen, a warm back room or blocked condenser coils will raise real use. Cleaning the condenser coils regularly keeps it close to the rating.

Also sold as

6151XL-S********

Certification history

ENERGY STAR certified 2023-03-29. On the market since 2023-03-13. EPA record 2452845.

Energy and specs

TypeVertical Solid Door Freezer
Marketed asReach-in
ConfigurationVertical
Total volume41.45 cu ft
Doors2 (2 solid, 0 glass)
Door typeHinged
Height × width × depth80 × 51 × 33 in
Certified daily energy7.74 kWh per day
Yearly energy (365 days)2,825 kWh
DefrostAutomatic
RefrigerantR-290 (GWP:3 | Lower GWP)
MarketsUnited States, Canada

Source: EPA ENERGY STAR Certified Commercial Refrigerators and Freezers, record 2452845. Most Efficient reflects the EPA field "meets most efficient criteria".

Similar models from other brands

Rule: certified vertical solid door freezers within 2 cu ft of this one (39.5 to 43.5 cu ft), other brands only, lowest energy first.

BrandModelSizeEnergyCost
Turbo AirTSF-49SD-N39.9 cu ft1934 kWh$280 at 14.47¢/kWh commercial/yr
MigaliC-2F-HC42.2 cu ft2274 kWh$329 at 14.47¢/kWh commercial/yr
AtosaMBF8002GR42.2 cu ft2274 kWh$329 at 14.47¢/kWh commercial/yr
RefrigerationXXBF47-2-N42.3 cu ft2460 kWh$356 at 14.47¢/kWh commercial/yr
RefrigerationXXF47-2-N42.3 cu ft2460 kWh$356 at 14.47¢/kWh commercial/yr
Turbo AirXBF47-2-N42.3 cu ft2460 kWh$356 at 14.47¢/kWh commercial/yr
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