Investor Presentaiton

Electric System Retail •Commission has statutory rate-making authority •Managed based on financial metrics to address inflation pressure, the Commission approved a price increase of 3% averaged over all rate classes •Effective April 2, 2023 •Effective April 1, 2024 •Low retail delivered rates, resulting from PRP favorable generation economics combined with wholesale management/strategy •Rates are set based upon meeting or exceeding financial targets in future years •Rate policies provide protection to core retail customer classes and allocate marginal costs associated with growth-risks to non- core customers 5303C

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