Skip to main content

Emit Solar | Home Solar Panels | Easy Ownership

Solar Savings Calculator

See your solar savings
in just a few clicks.
What is your average monthly TNB bill?
(+/-) -kWh supplied by TNB each month.
i
Daytime Electricity Usage
  • Solar Electricity is typically generated between 8am and 6pm and is used by your home as it is produced.
  • This can cover part of your daytime use, reducing the need to import electricity from the grid – so you save on all TNB charges (energy, capacity, network, SST and KWTBB).
  • Daytime usage usually ranges from 15% to 40% of total household electricity use, depending on lifestyle and consumption patterns.
  • Homes with higher overall electricity use often run more appliances during the day, allowing more daytime usage to be powered directly by solar.
Here are some examples:
Monthly TNB Bill
Est. Daytime Usage
<RM300
0-15%
RM300
15-20%
RM500
20-25%
RM900
25-30%
RM1000
30-35%
RM1500
35-40%
Roughly how much of your home’s electricity use happens from 8am-6pm?
(+/-) -kWh daytime use can be powered by solar.
i
Home Electrical System Determines the maximum solar system size allowed under Solar ATAP – 5kW for 1-phase, 15kW for 3-phase.
No of panels: - Solar Generation: (+/-) -kWh
Solar Savings (+/-)
You save
RM-/month
RM- per year
Your TNB Bill (+/-)
Before Solar
After Solar
RM-
RM-

View Detailed Breakdown

×
TNB Bill Simulation
Electricity Consumption
Before Solar (+/-) kWh
After Solar (+/-) kWh
TNB Electricity Consumption
-
-
Daytime Electricity Use (powered by solar)
0
-
Total Electricity Consumption
-
-
TNB Charges
Before Solar (+/-)
After Solar (+/-)
Energy
-
-
Capacity
-
-
Network
-
-
Automatic Fuel Adjustment
-
-
Energy Efficiency Incentive (EEI)
-
-
Retail
-
-
KWTBB
-
-
SST
-
-
Total Electricity Charges
-
-
Less Solar Export Credits [-kWh]
RM0
-
EEI Adjustment
RM0
-
Total TNB Bill
-
-
Solar Savings
Before Solar (+/-)
After Solar (+/-)
Savings from Daytime Electricity Use
RM0
-
Savings from Solar Export to TNB
RM0
-
Total Savings
RM0
-
Payback Period
- Years
back
Pricing & Purchase Options
recommended
5 Years Emit EzSolar
RM- per month
10 Years Emit EzSolar
RM- per month
Outright Purchase
RM-
Up to 60 months 0% interest Easy Payment Plan with selected banks
7.5% Cash Discount Available
(+/–) All figures are estimates and are based on current tariff rates and Solar ATAP policy.
  1. Solar generation will vary due to factors such as location, roof design and weather.
  2. Savings are highly dependent on usage patterns. An increase in imported electricity can result in lower monthly savings.
  3. TNB bill calculations use the general (non-ToU) tariff and exclude the Automatic Fuel Adjustment (AFA), which changes monthly and may be a charge or rebate.
  4. Figures shown exclude optional add-ons (e.g. Battery Energy Storage System).
Tariff Switch Calculator
i Select your average monthly TNB bills based on the old tariff.
Total Usage : (+/-) 2000 kwh
i Select your estimated peak hour usage. (Weekdays, 2pm - 10pm)
Peak Usage : (+/-) 600 kwh
i Select the closet match to your system size if you have solar or select ‘0’ if you don’t.
Generation : 803 kwh

TNB Bill Comparison

Old Tariff

Before Solar

RM-

After Solar

RM-

Savings

RM-

Energy RM- RM-
ICPT RM- RM-
KWTBB RM- RM-
SST RM- RM-

Savings

RM-

New Tariff - General

Before Solar

RM-

After Solar

RM-

Savings

RM-

Energy RM- RM-
Capacity RM- RM-
Network RM- RM-
EEI RM- RM-
Retail RM- RM-
KWTBB RM- RM-
SST RM- RM-

Savings

RM-

New Tariff - Time Of Use

Before Solar

RM-

After Solar

RM-

Savings

RM-

Energy - Peak RM- RM-
Energy - Off Peak RM- RM-
Capacity RM- RM-
Network RM- RM-
EEI RM- RM-
Retail RM- RM-
KWTBB RM- RM-
SST RM- RM-

Savings

RM-

(+/–) All figures are estimates and are based on current tariff rates and on the Government’s Solar ATAP announcement on 12 September 2025.
  1. Estimates may vary slightly from TNB’s calculator due to rounding differences.
  2. Monthly estimates are derived from annual calculations and averaged for simplicity – actual month-to-month results may vary.
  3. ⁠These calculations do not factor in the Automatic Fuel Adjustment (AFA), which is reviewed monthly.
  4. Post-solar TNB bill is calculated:
    1. On the basis that all Solar Electricity generated is exported and subsequently imported.
    2. Based on solar generation using 3.5 peak sunlight hours/day, according to statistics from government agencies.
  5. Actual savings will be derived from:
    1. Direct consumption of Solar Electricity during the day (reduces imported electricity).
    2. Any excess Solar Electricity exported under the NEM3.0 programme.
  6. Actual results may vary depending on location, roof design, usage patterns, weather and applicable TNB tariff tier.
  7. This calculator is provided for reference purposes only. While we strive to ensure accuracy, we do not guarantee that it is error-free.
Tagged