Domestic Bill Estimator

TNB tariff · rooftop solar comparison (ATAP / NEM)

Tariff & rates — click to adjust (all editable)
Energy [sen/kWh]
Tariff≤ 1500 kWh> 1500 kWh
Domestic General
Domestic ToU — Peak
Domestic ToU — Off-Peak
Charges & taxes
EEI incentive [sen/kWh] by usage tier
Band [kWh]ThresholdRate
Scenario 1
Inputs from TNB bill
Outputs from calculation
[6] = [1]+[2]Total Import—kWh
[7] = [1]Import (Peak)—kWh
[8] = [2]Import (Off-Peak)—kWh
[9] = [3]+[4]Total Export—kWh
[10] ≤ [6]Entitled Export—kWh
[11] = [9]-[10]New NEM Balance—kWh
[12] = [5]-[4]Total SelCo—kWh
[13]SelCo (Peak)—kWh
[14]SelCo (Off-Peak)—kWh
[15] = [6]+[12]Total Usage—kWh
[16] = [7]+[13]Peak—kWh
[17] = [8]+[14]Off-Peak—kWh
Before Solar—RM
After Solar—RM
Saving—RM
Scenario 2
Inputs from TNB bill
Outputs from calculation
[6] = [1]+[2]Total Import—kWh
[7] = [1]Import (Peak)—kWh
[8] = [2]Import (Off-Peak)—kWh
[9] = [3]+[4]Total Export—kWh
[10] ≤ [6]Entitled Export—kWh
[11] = [9]-[10]New NEM Balance—kWh
[12] = [5]-[4]Total SelCo—kWh
[13]SelCo (Peak)—kWh
[14]SelCo (Off-Peak)—kWh
[15] = [6]+[12]Total Usage—kWh
[16] = [7]+[13]Peak—kWh
[17] = [8]+[14]Off-Peak—kWh
Before Solar—RM
After Solar—RM
Saving—RM
Scenario 3
Inputs from TNB bill
Outputs from calculation
[6] = [1]+[2]Total Import—kWh
[7] = [1]Import (Peak)—kWh
[8] = [2]Import (Off-Peak)—kWh
[9] = [3]+[4]Total Export—kWh
[10] ≤ [6]Entitled Export—kWh
[11] = [9]-[10]New NEM Balance—kWh
[12] = [5]-[4]Total SelCo—kWh
[13]SelCo (Peak)—kWh
[14]SelCo (Off-Peak)—kWh
[15] = [6]+[12]Total Usage—kWh
[16] = [7]+[13]Peak—kWh
[17] = [8]+[14]Off-Peak—kWh
Before Solar—RM
After Solar—RM
Saving—RM

Solar energy flow

Generation [5] —
Distribute & consume internally
Direct consume 7AM–2PMDirect consume 2PM–7PM
SelCo (Peak) [13]—
SelCo (Off-Peak) [14]—
Total SelCo [12]—
Surplus export to grid
NEM Balance [3]
last month carry forward—
Export [4]—
Total Export [9]—
Total Export ≤ Total Import
Entitled Export [10]—
New NEM Balance [11]
carry forward next month—
Import from TNB grid
Import 2PM–10PMImport 10PM–2PM
Import (Peak) [7]—
Import (Off-Peak) [8]—
Total Import [6]—
Total Usage [15]—
Total Usage (Peak) [16]—
Total Usage (Off-Peak) [17]—