Exhibit 99.1

Semiannual Servicer’s Certificate

CenterPoint Energy Transition Bond Company IV, LLC

$1,695,000,000 2012 Senior Secured Transition Bonds

Pursuant to Section 6.13 of the Transition Property Servicing Agreement (the “Agreement”), dated as of January 19, 2012, between

CenterPoint Energy Houston Electric, LLC, as Servicer, and CenterPoint Energy Transition Bond Company IV, LLC, as Issuer,

the Servicer does hereby certify as follows:

Capitalized terms used in this Semiannual Servicer’s Certificate have their respective meanings as

set forth in the Agreement. References herein to certain sections and subsections are references

to the respective sections and subsections of the Agreement.

Collection Periods: April 14, 2021 through October 13, 2021

Payment Date: October 15, 2021

Today’s Date: October 13, 2021

1. Collections Allocable and Aggregate Amounts Available for Current Payment Date:

Remittances for the April 14 through 30, 2021 Collection Period

6,366,104.14

ii.

Remittances for the May 1 through 31, 2021 Collection Period

11,834,066.28

iii.

Remittances for the June 1 through 30, 2021 Collection Period

14,096,981.52

iv.

Remittances for the July 1 through 31, 2021 Collection Period

15,161,467.63

Remittances for the August 1 through 31, 2021 Collection Period

16,755,911.93

vi.

Remittances for the September 1 through 30, 2021 Collection Period

18,155,592.86

vii.

Remittances for the October 1 through 13, 2021 Collection Period

7,238,969.62

viii.

Net Earnings on General Subaccount

5,376.98

[4/1/21 through 9/30/21]

ix.

General Subaccount Balance (sum of i through viii above)

89,614,470.96

Excess Funds Subaccount Balance as of Current Payment Date

2,630,042.39

xi.

Capital Subaccount Balance as of Current Payment Date (1)

8,737,562.85

xii.

Collection Account Balance (sum of ix through xi above)

100,982,076.20

2. Outstanding Amounts as of Prior Payment Date:

Tranche A-1 Principal Balance

0.00

ii.

Tranche A-2 Principal Balance

0.00

iii

Tranche A-3 Principal Balance

541,291,778.00

iv.

Aggregate Principal Balance of all Series 2012 Transition Bonds

541,291,778.00

3. Required Funding/Payments as of Current Payment Date:

Projected

Principal

Semiannual

Principal

Balance

Principal Due

Tranche A-1

0.00

ii.

Tranche A-2

0.00

iii.

Tranche A-3

467,999,251.00

73,292,527.00

iv.

For all Series 2012 Transition Bonds

467,999,251.00

73,292,527.00

Transition

Days in

Bond

Interest

Interest Rate

Period (2)

Interest Due

Required Tranche A-1 Interest

0.9012

180

0.00

vi.

Required Tranche A-2 Interest

2.1606

180

0.00

vii.

Required Tranche A-3 Interest

3.0282

180

8,195,698.81

(1) Including current period earnings of $1,198.74

(2) On 30/360 Day basis.

Required Level

(Including Replenishment

of Amounts Previously

Funding

Withdrawn for 4.i.-4.viii.)

Required

viii.

Capital Subaccount

8,475,000.00

0.00

4. Allocation of Remittances as of Current Payment Date Pursuant to Section 8.02(d) of Indenture:

Trustee Fees and Expenses

0.00

ii.

Servicing Fee

423,750.00

(1)

iii.

Administration Fee and Independent Manager Fee

50,000.00

(2)

iv.

Operating Expenses

13,302.93

(3)

Semiannual Interest (including any past-due Semiannual Interest for prior periods)

Per 1,000

of Original

Aggregate

Principal Amount

1. Tranche A-1 Interest Payment

0.00

2. Tranche A-2 Interest Payment

0.00

3. Tranche A-3 Interest Payment

8,195,698.81

12.03

vi.

Principal Due and Payable as a result of (A) Event of Default or (B) on Final Maturity Date

Per 1,000

of Original

Aggregate

Principal Amount

1. Tranche A-1 Principal Payment

0.00

2. Tranche A-2 Principal Payment

0.00

3. Tranche A-3 Principal Payment

0.00

vii.

Principal Scheduled to be Paid on Current Payment Date

Per 1,000

of Original

Aggregate

Principal Amount

1. Tranche A-1 Principal Payment

0.00

2. Tranche A-2 Principal Payment

0.00

3. Tranche A-3 Principal Payment

73,292,527.00

107.58

viii.

Operating Expenses not Paid under Clause (iv) above

0.00

ix.

Replenishment of Any Amounts Drawn from Capital Subaccount

0.00

Amount Calculated at Servicer’s Authorized Rate of Return on Equity on the Amount Contributed to the Capital Subaccount in Excess of 0.5% of the Initial Outstanding Principal Balance of the Bonds Released to Issuer

xi.

Net Earnings in Capital Subaccount Relating to the Initial Contribution of 0.5% of the Initial Outstanding Principal Balance of the Bonds Released to Issuer

0.00

xii.

Deposit to Excess Funds Subaccount

-7,639,192.22

xiii.

Released to Issuer upon Series Retirement: Collection Account

0.00

xiv.

Aggregate Remittances as of Current Payment Date

74,336,086.52

(1) Servicing fee: $1,695,000,000 x .05% x 180/360 = $423,750.00

(2) Administration fee: $100,000 x 180/360 = $50,000.00

(3) Reimbursement to Administrator for fees/expenses paid as follows:

Outside counsel

1,500.00

Printing

1,540.00

Independent auditor

10,262.93

Rating Agencies

0.00

Total

13,302.93

5. Subaccount Release or Withdrawals as of Current Payment Date Pursuant to Section 8.02(d) of Indenture:


i.	Capital Subaccount Release (available for 4.xi.)	0.00
ii.	Excess Funds Subaccount Withdrawal (available for 4.i. through 4.x.)	0.00
iii.	Capital Subaccount Withdrawal (available for 4.i. through 4.viii.)	0.00

iv.	Total Release or Withdrawals	0.00

6. Outstanding Amounts and Collection Account Balance as of Current Payment Date

(after giving effect to payments to be made on such Payment Date):


i.	Tranche A-1 Principal Balance	0.00
ii.	Tranche A-2 Principal Balance	0.00
iii.	Tranche A-3 Principal Balance	467,999,251.00

iv.	Aggregate Principal Balance for all Series 2012 Transition Bonds	467,999,251.00

v.	Excess Funds Subaccount Balance	10,269,234.61
vi.	Capital Subaccount Balance	8,737,562.85

vii.	Aggregate Collection Account Balance	19,006,797.46

7. Shortfalls In Interest and Principal Payments as of Current Payment Date

(after giving effect to payments to be made on such Payment Date):


	i.	Semiannual Interest

		1. Tranche A-1 Bond Interest Payment	0.00
		2. Tranche A-2 Bond Interest Payment	0.00
		3. Tranche A-3 Bond Interest Payment	0.00

	ii.	Semiannual Principal

		1. Tranche A-1 Principal Payment	0.00
		2. Tranche A-2 Principal Payment	0.00
		3. Tranche A-3 Principal Payment	0.00

8. Shortfall in Required Subaccount Level as of Current Payment Date
(after giving effect to payments to be made on such Payment Date):

	i.	Capital Subaccount	0.00

	IN WITNESS HEREOF, the undersigned has duly executed and delivered this
	Semiannual Servicer’s Certificate this 13th day of October, 2021.

	CENTERPOINT ENERGY HOUSTON ELECTRIC, LLC, as Servicer


		by:		/s/ Brett Jerasa
				Brett Jerasa
				Assistant Treasurer

CenterPoint Energy Transition Bond Co IV, LLC 10-D