Keystone KSTAW12INV-HC
Window
Summary
The Keystone KSTAW12INV-HC is a window that uses 677 kWh per year, costing approximately $108.27annually to run at the US average electricity rate. Over 10 years, that's $1082.70 in energy costs alone. It uses 36% less energy than the federal minimum standard. This is an exceptionally efficient model.
Ranked #313 out of 404 room air conditioners by annual running cost, it costs $11.27 more per year than the category average of $97.
How This Compares to Other Room Air Conditioners
Ranked #313 out of 404 in the room air conditioners category (by lowest annual cost).
Energy Details
Running Cost Breakdown
Estimated electricity costs at different time horizons (based on $0.16/kWh US average rate):
Actual costs vary by location. States like Hawaii ($0.43/kWh) pay significantly more while Idaho ($0.11/kWh) pays less. Use our energy calculator to estimate costs at your local rate.
What This Means for You
The Keystone KSTAW12INV-HC costs more to run than the average room air conditioner. At $108.27/year, you'll pay approximately $112.70 more over 10 years compared to a typical model. Consider whether its other features justify the higher operating cost.
Energy costs are just one factor in choosing a room air conditioner. Consider the purchase price, features, reliability, and how the total cost of ownership (purchase price + energy costs over its expected lifespan) compares to alternatives.