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SECOND REGULAR SESSION
SENATE BILL NO. 1473
103RD GENERAL ASSEMBLY
INTRODUCED BY SENATOR TRENT.
5879S.01I KRISTINA MARTIN, Secretary
AN ACT
To amend chapter 393, RSMo, by adding thereto one new section relating to rebates by electrical
corporations.
Be it enacted by the General Assembly of the State of Missouri, as follows:
Section A. Chapter 393, RSMo, is amended by adding thereto 1
one new section, to be known as section 393.2500, to read as 2
follows:3
393.2500. 1. As used in this section, the following 1
terms shall mean: 2
(1) "Commission", the Missouri public service 3
commission; 4
(2) "Customer-generator", the same as defined in 5
section 386.890; 6
(3) "Electrical corporation", the same as defined in 7
section 386.020; 8
(4) "Energy storage system", commercially available 9
technology that is capable of absorbing energy and storing 10
it for a period of time for use at a later time, including 11
but not limited to electrochemical, thermal, and 12
electromechanical technologies, and may be interconnected 13
behind the customer's meter or interconnected behind its own 14
meter; 15
(5) "Smart inverter", a device that converts direct 16
current from solar panels into alternating current and meets 17
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all applicable safety, performance, interconnection, and 18
reliability standards established by the National Electrical 19
Code, the National Electrical Safety Code, the Institute of 20
Electrical and Electronics Engineers, Underwriters 21
Laboratories, the Federal Energy Regulatory Commission, and 22
any local governing authorities. 23
2. Within ninety days after August 28, 2026, an 24
electrical corporation shall file an application with the 25
commission requesting approval of the corporation's tariff 26
to provide a rebate to any customer-generator installing any 27
energy storage system and, if applicable, a new solar 28
electric system at the customer-generator's premises for the 29
customer-generator's own use. The rebate shall be as 30
follows: 31
(1) Two dollars per watt for systems becoming 32
operational on or before June 30, 2027; 33
(2) One dollar and fifty cents per watt for systems 34
becoming operational between July 1, 2027, and June 30, 2028; 35
(3) One dollar per watt for systems becoming 36
operational between July 1, 2028, and June 30, 2029; 37
(4) Fifty cents per watt for systems becoming 38
operational between July 1, 2029, and June 30, 2030; 39
(5) Fifty cents per watt for systems becoming 40
operational between July 1, 2030, and June 30, 2031; or 41
(6) Twenty-five cents per watt for systems becoming 42
operational between July 1, 2031, and June 30, 2032. 43
The rebate amounts under this subsection shall be issued 44
until such funds expire or exceed the allotted amounts. An 45
electrical corporation may, through its tariffs, require 46
applications for rebates to be submitted by customer- 47
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generators up to one hundred and eighty days prior to June 48
30, 2027. 49
3. The commission shall review the application under 50
subsection 2 of this section and make modifications, if 51
necessary, that are consistent with the commission's 52
authority under chapter 386. No later than one hundred and 53
eighty days after the electrical corporation files the 54
application under subsection 2 of this section, the 55
commission shall hold a hearing and issue an order 56
approving, or approving with modifications, the tariff. 57
4. To be eligible for a rebate under this section, a 58
customer-generator shall: 59
(1) Have a smart inverter installed at the customer's 60
premises that is interconnected to distribution facilities 61
owned or operated by an electrical corporation; 62
(2) Install an energy storage system; 63
(3) Connect an energy storage system to a new or 64
existing solar electric system sited on the customer- 65
generator's premises that is confirmed by the electrical 66
corporation to have become operational and in compliance 67
with the provisions of section 386.890; and 68
(4) Transfer to the electrical corporation all rights, 69
titles, and interest in and to the renewable energy credits 70
associated with the solar electric system and energy storage 71
system that qualified the customer-generator for the rebate 72
for a period of ten years from the date the electrical 73
corporation confirmed that the energy storage system was 74
installed and operational. 75
5. An electrical corporation's obligation to make 76
rebate payments under this section shall not exceed the 77
following limitations: 78
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(1) As of August 28, 2026, an electrical corporation 79
with one million or more customers in the state shall not be 80
obligated to pay rebates in any calendar year from 2026 81
through 2032 in an amount exceeding five million six hundred 82
thousand dollars or in an aggregate amount exceeding twenty- 83
eight million dollars; 84
(2) As of August 28, 2026, an electrical corporation 85
with less than one million but more than two hundred 86
thousand customers in the state shall not be obligated to 87
pay rebates in any calendar year from 2026 through 2032 in 88
an amount exceeding one million six hundred thousand dollars 89
or in an aggregate amount exceeding eight million dollars; 90
and 91
(3) As of August 28, 2026, an electrical corporation 92
with two hundred thousand or less customers in the state 93
shall not be obligated to pay rebates in any calendar year 94
from 2026 through 2032 in an amount exceeding one million 95
four hundred thousand dollars or in an aggregate amount 96
exceeding seven million dollars. 97
6. After the issuance of the rebate under this 98
section, an electrical corporation shall be permitted to 99
recover the cost of all rebate payments it has made through 100
either base rates or a rate adjustment mechanism under 101
section 393.1030 and shall also be permitted to defer and 102
amortize the recovery of such costs, including interest at 103
the electrical corporation's short-term borrowing rate, 104
through either base rates or a surcharge over a period of 105
the electrical corporation's choice not to exceed five 106
years, provided that if recovery of such costs in such 107
manner and over such a time period would cause the 108
electrical corporation to exceed the one percent maximum 109
average retail rate increase limitation required by 110
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subdivision (1) of subsection 2 of section 393.1030. The 111
recovery of such costs that would exceed the one percent 112
maximum average retail rate increase limitation shall be 113
deferred by the electrical corporation to a regulatory asset 114
to which carrying costs at the electrical corporation's 115
weighted average cost of capital shall be added and 116
recovered through base rates or through a rate adjustment 117
mechanism under section 393.1030, as soon as practicable. 118
7. The commission shall promulgate rules to implement 119
the provisions of this section. Any rule or portion of a 120
rule, as that term is defined in section 536.010, that is 121
created under the authority delegated in this section shall 122
become effective only if it complies with and is subject to 123
all of the provisions of chapter 536 and, if applicable, 124
section 536.028. This section and chapter 536 are 125
nonseverable and if any of the powers vested with the 126
general assembly pursuant to chapter 536 to review, to delay 127
the effective date, or to disapprove and annul a rule are 128
subsequently held unconstitutional, then the grant of 129
rulemaking authority and any rule proposed or adopted after 130
August 28, 2026, shall be invalid and void. 131
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