Investor Presentaiton

2021 RFP shortlist Renewable Generation Resources Company-owned Wind Bidder A (3) Project Proposal (1) Technology Structure MW (2) MW 1 a) Solar, Battery PPA 120 b) Solar PPA 120 2 a) Solar, Battery PPA 200 b) Solar PPA 200 B 3 a) Solar, Battery PPA 41 b) Solar PPA 41 Solar, Battery PPA 41 d) Solar PPA 41 C 4 a) Solar, Battery PPA 150 b) Solar, Battery PPA 150 | | | | |||||| LO 5 a) Solar, Battery PPA 76 D 6 a) Clearwater Wind Hybrid (4) 311 208 LU 7 a) Wind, Solar, Battery Hybrid (4) 1,050 350 b) Wind, Solar, Battery Hybrid (4) 450 230 Wind, Solar, Battery Hybrid (4) 710 350 d) Wind Hybrid (4) 690 350 Wind Hybrid (4) 350 230 Wind, Solar, Battery Hybrid (4) 610 350 (1) While the outcome of the RFP process may involve the selection of multiple projects for both renewable and capacity resources, individual proposals within a given project are considered mutually exclusive (2) Renewable MW values do not include nameplate capacity of paired energy storage (3) Selection of projects from Bidder A are limited to two of the three submitted projects. i.e., A.1. and A.2. may be selected, but not A.8., etc. (4) Hybrid commercial structure includes a PPA portion and a Company-owned portion of project resources PGE 10

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