LG LF21C6000 Running Cost (Refrigerator)
LG LF21C6000: running cost
At 515 kWh/yr, the LG LF21C6000's ENERGY STAR certification puts it one of the more expensive models in its category to run against every other certified refrigerator.
That $97 is priced at 18.8¢/kWh, the average of all 51 state rates this site tracks. Your own state's rate is one click away.
Efficient, or not, for a refrigerator
The category average is 386 kWh/yr; this model runs 33.4% above it, ranking 3,572 of 4,704 refrigerators tracked here for running cost. That average is drawn from all 4,704 refrigerators ENERGY STAR currently certifies, not an outside number, a $24/year gap from this model at the national rate. Full sourcing is in the sourcing notes.
Right next to it on the list
A rank or two either side of the LG LF21C6000: Blomberg BRFB1322FBI ($97/yr, 515 kWh/yr), then LG LS23C4000 ($97/yr, 518 kWh/yr).
Within the LG lineup
Ranked 31 of LG's 132 certified refrigerators, this sits between the LK14S8000 ($39/yr, the brand's cheapest) and the LRMXS3006 ($150/yr, its priciest).
What this adds up to over time
Over the 13-year service life NAHB reports for this category, running the LG LF21C6000 costs roughly $1,259 in electricity, separate from the purchase price.
Is it worth replacing?
The LG LF21C6000 runs above its category average. If the refrigerator you actually own is older still, likely well past ENERGY STAR's efficiency baseline when it was made, a current certified model could cost meaningfully less than this model's $97/year every year.
Compare current ENERGY STAR certified refrigerators before buying.
If you're keeping it
Whether or not the LG LF21C6000 ever needs replacing, a repair is the more common failure for a refrigerator, one a protection plan budgets for ahead of time.
Where this number comes from
Ranked 3,572 of 4,704, the LG LF21C6000 sits in the middle of the refrigerator category, see the guide to why your state changes this number for the other half of the math. The 515 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.