Yearly AC Electricity Bill Calculator

Annual AC Cost Planning

Plan your electricity budget with accurate yearly AC cost projections. Unlike monthly calculations, annual planning accounts for seasonal variations in usage and helps you understand the true long-term cost of air conditioning.

Seasonal Usage Patterns

AC usage varies dramatically by season in most climates:

• Summer (Jun-Aug): Peak usage — 8-12 hours/day
• Shoulder (May, Sep): Moderate — 4-6 hours/day
• Spring/Fall (Apr, Oct): Light — 2-4 hours/day on hot days
• Winter (Nov-Mar): Minimal — 0-2 hours occasionally

Calculating Annual Cost

Sum costs for each usage period:

• Peak months (3): 10 hrs × 30 days × 3 months = 900 hours
• Moderate months (2): 5 hrs × 30 days × 2 months = 300 hours
• Light months (2): 3 hrs × 15 days × 2 months = 90 hours
• Total: ~1,290 hours × 1.5 kW × $0.12 = $232/year

Annual Cost by AC Size

Approximate yearly costs (6 months usage, 8 hrs/day average):

• 0.75 Ton: $120-180/year
• 1.0 Ton: $160-240/year
• 1.5 Ton: $220-360/year
• 2.0 Ton: $300-480/year

Factors That Increase Annual Costs

• Tropical climate: Year-round cooling adds 80-100%
• Old/inefficient AC: Adds 30-50% over 5-star inverter
• Poor insulation: Adds 20-40% from extended runtime
• Low thermostat settings: Each degree adds 3-5%

Long-Term Cost Comparison

Comparing efficiency over 10-year AC lifespan:

• 3-Star Non-Inverter: ~$4,000 electricity over 10 years
• 5-Star Non-Inverter: ~$3,000 (saves $1,000)
• 5-Star Inverter: ~$2,200 (saves $1,800)

Budgeting Tips

• Set aside 60-70% of annual AC budget for June-August
• Track monthly usage to refine next year's budget
• Consider time-of-use rates for peak hour savings
• Plan major efficiency upgrades (insulation, AC) in off-season