Post on 15-Apr-2022
Renewable Portfolio Standard Updates
Glendale Water & Power Commission
June 7, 2021
• California’s Renewable Portfolio Standard Program Was Established in 2002 and Based on Percentage of Electricity Retail Sales Served By Renewable Resources
• California Energy Commission is Responsible For the Certification of Eligible Renewable Energy Resources and Adopting Enforcement Regulations
SB1078 (2002): 20% By 2017
SB350 (2015): 50% By 2030; Interim 3-Year Target Compliance Periods; 65% of RPS Procurement Derived from Long-Term Contracts of 10 or More Years
SB100 (2018): 60% By 2030; 100% Carbon-Free Resources By 2045
Renewable Portfolio Standard and Clean Energy Overview
21
svcleanenergy.org
RPS Compliance Periods
32
City of GlendalePower Content and RPS Compliance
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CP3 Compliance Reports Due by July 1, 2021
2020* - Estimated Power Content Label
2030, 60.00%
2045, 100.00%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
20
16
20
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20
18
20
19
20
20
20
21
20
22
20
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24
20
25
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30
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32
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20
45
% R
enew
able
Current RPS Position (with Scholl LFG)
GWP Renewables Scholl LFG (Planned) ZeroCarb CA Renewable Target CA Zero Carbon Target
Renewable and Clean Resources
54
• Value of Layered Long-Term Agreement
• Room for Changing Prices and Technologies
• Scholl Canyon Project Contribution
1. Meet Compliance Period Soft Targets
2. Meet Integrated Resource Plan (IRP) Goals
3. Enter Into Long-Term Renewable and Clean Energy Agreements– Executed Projects
– Future Projects (Type of Resource)
4. Manage Excess RECs
5. Utilize PowerSimm Modeling Tool
6. Continual Portfolio Analysis and Studies
7. Virtual Power Plant
Mitigation and Compliance Strategy
65
• Regulatory Changes and Maintaining Culture of Compliance
• Excess Procurement Unused• Substitute Energy Uncertainty• Transmission Limitations/Lack of• Retail Load Uncertainty• Over/Under Renewable/Clean Energy Procurement
(Cost/Penalties)– $50 Per Out of Compliance REC; $250K Penalty For 5000 MWh Shortfall
• Clean Energy Programs Intermittency • Scholl Canyon Renewable Project Completion Rate
Risks and Concerns
76
87
100% Clean by 2030 Study
60% 59%72% 72% 80% 80% 86% 87% 89%
0%
25%
50%
75%
100%
125%
150%
2022 2023 2024 2025 2026 2027 2028 2029 2030
Perc
enta
ge o
f R
etai
l Lo
ad
Clean Energy Serving Load
Clean Energy Sales
Clean Energy Curtailment
Full Retail Load
GWP can plausibly reach 89% clean energy around-the-
clock by 2030 with some big investments
Curtailments and sales increase substantially as more renewables come online
Over one-third of clean energy generation is curtailed or sold in 2030
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Portfolio Changes
-250
-200
-150
-100
-50
0
50
100
150
2022 2023 2024 2025 2026 2027 2028 2029 2030
Nam
ep
late
Cap
acit
y C
han
ge (
MW
)
Geothermal**
Wind**TeslaBattery
Future Solar*
RICEUnits*
IPP Coal
IPP Natural Gas
Solar**
Battery**
Wind**
Grayson Units 1-8
Highwinds & Pebble Springs
Pleasant Valley
Sunrun*
Scholl*
* Indicates projects under negotiation** Indicates hypothetical projects
Clean energy model relied on aggressive assumptions• Continuation of the Clean Energy RFP acquisitions
• Commercial roof-top solar and storage
• Additional geothermal, wind and hybrid solar resources outside of Glendale
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Clean Energy Beyond 2030• Technological change is likely going to play a significant
role in the path to 100%
• Potential future resources beneficial to GWP include – Renewable natural gas
• Carbon neutral fuels to replace natural gas
• Still in development
– Green Hydrogen• Hydrogen production from renewable sources for use in natural gas plants
• Currently planned for IPP starting in 2025 (30% Hydrogen mixed with 70% Natural Gas)
• Hydrogen would account for 10% of energy generation from IPP
• Ratio would increase over time to reach 100% Hydrogen by 2045
– Long duration storage• Energy storage with duration measured in days
• Pilot project are planned for projects with 200 hours of storage duration