Quote from 
admin on July 17, 2025, 4:58 pm
Here's a step-by-step guide to calculating air conditioner electricity costs under Malaysia's 2025 tariff, including projected rates, formulas, and cost-saving strategies based on the latest energy policies:
Step 1: Find Your AC's Power Consumption
Formula:
Power (kW) = [BTU/hr ÷ EER] ÷ 1,000
 
Step 2: Calculate Daily Energy Use (kWh)
Daily kWh = kW × Hours Used
 
Step 3: Apply Malaysia's 2025 Electricity Tariff (Projected*)
*Based on 2024 rates + 8% average increase forecast*:
| Monthly Household Usage | Rate (RM/kWh) | 
| 1–200 kWh | RM 0.235 ⬆️ | 
| 201–300 kWh | RM 0.361 ⬆️ | 
| 301–600 kWh | RM 0.557 ⬆️ | 
| 601–900 kWh | RM 0.590 ⬆️ | 
| >900 kWh | RM 0.617 ⬆️ | 
 
*Official 2025 rates will be confirmed Dec 2024 (Suruhanjaya Tenaga)
Assumed increase based on ICPT adjustments and fuel cost trends.
Step 4: Calculate Monthly Cost
Scenario:
Calculations:
- 
AC Monthly kWh:
 1.2 kW × 8 hrs × 30 days = 288 kWh
 
- 
Total Household Usage: 
- 
Cost Breakdown (2025 Projected): 
| Usage Block | kWh | Rate (RM) | Cost (RM) |  
| 1–200 | 200 | 0.235 | 47.00 |  
| 201–300 | 100 | 0.361 | 36.10 |  
| 301–600 | 250 | 0.557 | 139.25 |  
| AC Portion | 288 | 0.557 | 160.42 |  
| Total Bill | 550 | – | 222.35 |  
| → AC Cost ≈ RM 160.42/month |  
 
 
Key Changes in 2025 Tariff
- 
Higher Rates: 
- 
Steeper Tiered Pricing: 
- 
RM40 Rebate for B40 Families:
 Eligible households receive bill credit for usage <600 kWh/month.
 
Cost Comparison: Inverter vs. Non-Inverter AC
| AC Type (1.5 HP) | Avg. Power | Monthly kWh | Cost (RM) | 
| Inverter | 0.8–1.0 kW* | 192–240 | 107–133 | 
| Non-Inverter | 1.3–1.6 kW | 312–384 | 174–214 | 
 
*Inverter saves ~40% after initial cooldown.
*Assumes 8 hrs/day, 301–600 kWh tier (RM 0.557/kWh).*
5 Cost-Saving Tips for 2025
- 
Set Temp to 24–26°C: Each 1°C lower adds 10% to bills. 
- 
Use Eco Mode: Reduces power by 20–30%. 
- 
Night Scheduling: Run less during 6–10 PM (peak grid demand). 
- 
Seal Gaps: Weather-strip windows/doors to cut heat gain. 
- 
Claim Tax Rebates: RM2,000 income tax relief for new 5-star inverter ACs. 
Estimated Monthly Costs (2025)
| Room Size | AC Type | 8 hrs/day | 12 hrs/day | 
| Small (1.0 HP) | Inverter | RM 90–110 | RM 135–165 | 
| Medium (1.5 HP) | Non-Inverter | RM 160–190 | RM 240–285 | 
| Large (2.0 HP) | Inverter | RM 130–150 | RM 195–225 | 
 
Includes tariff tiers 301–600 kWh. Add 15% for >600 kWh usage.
Tools for Accuracy
- 
Real-Time Trackers: 
- 
AC Energy Labels:
 Look for Malaysia Energy Label (5 stars = best efficiency).
 
**Formula for Advanced Users**:  
Monthly Cost = (kW × Hours × 30) × Tiered Rate + 8% Service Tax
 
Final Tip: Pre-cool rooms before peak hours (4–7 PM) to avoid highest tariff tiers!
Always verify 2025 rates at myTNB after December 2024.
Need a personalized estimate? Reply with:
Here's a step-by-step guide to calculating air conditioner electricity costs under Malaysia's 2025 tariff, including projected rates, formulas, and cost-saving strategies based on the latest energy policies:
Step 1: Find Your AC's Power Consumption
Formula:
Power (kW) = [BTU/hr ÷ EER] ÷ 1,000
 
Step 2: Calculate Daily Energy Use (kWh)
Daily kWh = kW × Hours Used
 
Step 3: Apply Malaysia's 2025 Electricity Tariff (Projected*)
*Based on 2024 rates + 8% average increase forecast*:
| Monthly Household Usage | Rate (RM/kWh) | 
| 1–200 kWh | RM 0.235 ⬆️ | 
| 201–300 kWh | RM 0.361 ⬆️ | 
| 301–600 kWh | RM 0.557 ⬆️ | 
| 601–900 kWh | RM 0.590 ⬆️ | 
| >900 kWh | RM 0.617 ⬆️ | 
 
*Official 2025 rates will be confirmed Dec 2024 (Suruhanjaya Tenaga)
Assumed increase based on ICPT adjustments and fuel cost trends.
Step 4: Calculate Monthly Cost
Scenario:
Calculations:
- 
AC Monthly kWh:
 1.2 kW × 8 hrs × 30 days = 288 kWh
 
- 
Total Household Usage: 
- 
Cost Breakdown (2025 Projected): 
| Usage Block | kWh | Rate (RM) | Cost (RM) |  
| 1–200 | 200 | 0.235 | 47.00 |  
| 201–300 | 100 | 0.361 | 36.10 |  
| 301–600 | 250 | 0.557 | 139.25 |  
| AC Portion | 288 | 0.557 | 160.42 |  
| Total Bill | 550 | – | 222.35 |  
| → AC Cost ≈ RM 160.42/month |  
 
 
Key Changes in 2025 Tariff
- 
Higher Rates: 
- 
Steeper Tiered Pricing: 
- 
RM40 Rebate for B40 Families:
 Eligible households receive bill credit for usage <600 kWh/month.
 
Cost Comparison: Inverter vs. Non-Inverter AC
| AC Type (1.5 HP) | Avg. Power | Monthly kWh | Cost (RM) | 
| Inverter | 0.8–1.0 kW* | 192–240 | 107–133 | 
| Non-Inverter | 1.3–1.6 kW | 312–384 | 174–214 | 
 
*Inverter saves ~40% after initial cooldown.
*Assumes 8 hrs/day, 301–600 kWh tier (RM 0.557/kWh).*
5 Cost-Saving Tips for 2025
- 
Set Temp to 24–26°C: Each 1°C lower adds 10% to bills. 
- 
Use Eco Mode: Reduces power by 20–30%. 
- 
Night Scheduling: Run less during 6–10 PM (peak grid demand). 
- 
Seal Gaps: Weather-strip windows/doors to cut heat gain. 
- 
Claim Tax Rebates: RM2,000 income tax relief for new 5-star inverter ACs. 
Estimated Monthly Costs (2025)
| Room Size | AC Type | 8 hrs/day | 12 hrs/day | 
| Small (1.0 HP) | Inverter | RM 90–110 | RM 135–165 | 
| Medium (1.5 HP) | Non-Inverter | RM 160–190 | RM 240–285 | 
| Large (2.0 HP) | Inverter | RM 130–150 | RM 195–225 | 
 
Includes tariff tiers 301–600 kWh. Add 15% for >600 kWh usage.
Tools for Accuracy
- 
Real-Time Trackers: 
- 
AC Energy Labels:
 Look for Malaysia Energy Label (5 stars = best efficiency).
 
**Formula for Advanced Users**:  
Monthly Cost = (kW × Hours × 30) × Tiered Rate + 8% Service Tax
 
Final Tip: Pre-cool rooms before peak hours (4–7 PM) to avoid highest tariff tiers!
Always verify 2025 rates at myTNB after December 2024.
Need a personalized estimate? Reply with: