HomeMy WebLinkAbout06.b. Receive summary of Central San's 2022 Energy Usage Page 1 of 6
Item 6.b.
CENTRALSAN
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CENTRAL CONTRA COSTA SANITARY DISTRICT
March 16, 2023
TO: HONORABLE BOARD OF DIRECTORS
FROM: CLINT SHIMA, SENIOR ENGINEER
REVIEWED BY: NEIL MEYER, PLANT MAINTENANCE DIVISION MANAGER
PAUL SEITZ, PROVISIONAL DIRECTOR OF OPERATIONS
ROGER S. BAILEY, GENERAL MANAGER
SUBJECT: RECEIVE SUMMARY OF CENTRAL SAN'S 2022 ENERGY USAGE
Staff will present a summary of Central San's 2022 energy usage.
Strategic Plan Tie-In
GOAL TWO: Environmental Stewardship
Strategy 4- Identify and advance sustainability initiatives, including reducing energy usage and emissions
GOAL SEVEN:Innovation and Agility
Strategy 1 - Leverage data analytics to become a more efficient utility
ATTACHMENTS:
1. Presentation
March 16, 2023 Regular Board Meeting Agenda Packet- Page 73 of 82
Page 2 of 6
March 16,2023
-40—
Summary of
Central San's
2022 Energy
Usage AA
Board of Directors Meeting
Clint Shima,P.E.
Senior Engineer
Plant Maintenance Division
j 7 '
Table of Contents
Central San's Energy Usage
o Tracked Monthly
o Board of Directors Updated
Quarterly
Treatment Plant 2021 Versus _
2022 AN
Monthly Usage Statistics -
Marin Clean Energy(MCE)
Impact
General Energy Information
Solar Panels
l 4'
March 16, 2023 Regular Board Meeting Agenda Packet- Page 74 of 82 1
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TREATMENT PLANT USAGE STATISTICS
2021 2022
Natural Gas
(NG): 424,000 MMBtu $2.61M 444,000 MMBtu $3.9M
Landfill Gas
(LFG): 81,000 MMBtu $455k 82,000 MMBtu $492k
Totals: 505,000 MMBtu $3.11V! 526,000 MMBtu $4.4M
Electricity 1,628,000 kWh $666k 2,818,000 kWh $1,134k
(PG&E&MCE):
Cogeneration: 22,656,000 kWh 21,642,000 kWh
Totals: 24,284,000 kWh $3.7M 24,450,000 kWh $5.5M
One Million British Thermal Unit(MMBtu) Kilowatt Hour(kWh)
6,P6acifi'cGasand Electric(PG&E) Million(M) Thousands(k)
d
Total Monthly Usage Statistics*
Total Costs (NG, LFG, and Electricity)* -
o Range: $408,283 to $782,101
o Average: $525,000
Average Cost/ Million Gallons (MG): $514 ►� '
Average kWh / MG: 1,963
Area Cost Breakdown ;
o Treatment Plant: 86%—93%
o Pumping Stations: 6%— 11%
o Collection System Operations Facility: 1% - 7%
F
'Includes Treatment Plant,Pumping Stations,and Collection System Operations facility 1
March 16, 2023 Regular Board Meeting Agenda Packet- Page 75 of 82 2
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MCE Impact (MCS
Savings: Approximately $39,000 compared
to PG&E rates
MCE: Light Green is 60% renewable
Total PG&E and MCE 2022 Cost: $1.1M
MCE 2022 Cost: $319,000
General Energy Information
Landfill Gas
Ceiling of$6/ MMBtu saved Central
San $283,000
Agreement renewal in September
Renewable Energy: —25%
Natural Gas PricesAr
-.,
o 2018 Average: $3.24/ MMBtu
o 2019 Average: $3.04/ MMBtu
o 2020 Average: $3.04/ MMBtu
o 2021 Average: $3.91 / MMBtu
o 2022 Average: $6.77/ MMBtu
March 16, 2023 Regular Board Meeting Agenda Packet- Page 76 of 82 3
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General Energy Information
Natural Gas Markets
Russian invasion of Ukraine
Liquefied Natural Gas (LNG)over$50 / MMBtu in Asia and Europe
o Freeport Facility shutdown
PG&E Public Safety Power Shutoff(PSPS) outages
No PSPS in 2021 or 2022
Cogeneration
o Breakeven cost$11.93/dekatherm (dth), monthly average
2022 Greenhouse Gas: Below 25,000 Carbon Dioxide Equivalent
(CO2e) Metric Ton (MT)
Br"shutdown for Greenhouse Gas (GHG)
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Installed at Household Hazardous Waste Facility
and Collection Systems Operations Facility
Solar Panels
2021 Produced: 269 Megawatt Hour (MWh)
2022 Produced: 293 MWh
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March 16, 2023 Regular Board Meeting Agenda Packet- Page 77 of 82 4
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March 16, 2023 Regular Board Meeting Agenda Packet- Page 78 of 82 S