Ohio Rev. Code § 4928.642
Beginning with compliance year 2020, the public utilities commission shall, in accordance with this section, reduce the number of kilowatt hours required for compliance with section 4928.64 of the Revised Code for all electric distribution utilities and all electric services companies in this state. The commission shall determine each utility's and each company's reduction by taking the total amount of kilowatt hours produced, if any, by all qualifying solar resources, as defined in section 3706.40 of the Revised Code, during the preceding compliance year, allocating that total among all electric distribution utilities and electric services companies in proportion to their baselines for the subject compliance year, and subtracting that allocated amount from the utility's or company's compliance amount as otherwise determined under section 4928.64 of the Revised Code.
R.C. § 4928.642