8a Presentation Renewable Natural Gas Contract
Item No. 8a_supp
Date of Meeting April 14, 2020
Renewable Natural Gas Supply
Contract Authorization
Environment & Sustainability
Facilities & Infrastructure
1
Presentation Overview
1. Review Port climate goals
2. How Renewable Natural Gas (RNG)
supports climate goals
3. Why RNG is heeded now
4. Proposed Action
Contract Principles
- Budget
2
The Port's Climate Goals
Reduce Port-owned and controlled (Scope 1 &2) greenhouse
gas emissions below 2005 levels by:
. 15% by 2020
. 50% by 2030
. 100% by 2050
3
The Port's GHG Emissions
2018 Port-wide Scope 1 & 2 Greenhouse Gas Emissions
30000
25000
15%' 0,
g m Liquid Fuels
o
$ 15000 m Electricity
Cc
50%50%
5 m Natural Gas
10000
Ss
5000
4
CA Goal = 50% by 2030
5
CA Goal = 50% by 2030
6
What is Renewable Natural Gas (RNG)?
A zero carbon natural gas alternative. As organic waste breaks
down, it emits methane gas that can be captured and
processed to meet natural gas pipeline quality specifications.
RNG Sources:
~100 production facilities nationwide
* 70% are landfills; 30% wastewater treatment & anaerobic digesters
* 90%of these facilities used for transportation fuel (i.e. CNG fleets)
7
Cedar Hills Landfill, King County Renton WWTP, King County Bar-Way Farm, Massachusetts
8
9
|
J or > a -
f ny
beesey 3
g
-
}
< oo
a
Co' ne
i"_ , _
- rm aa = 4 >
: n
>: -
:
. ;
2
a - ho
c
=
) on -
go
: or
>
-
. LJ
y
-
-
~
s Sr |
g
=
=
.
~
| | :
)
=
-
-
a "
CN \N NR '
\
v NN
- a .
Ral
a
=
Fo, }
p "
.
"
N { .
oa ,
3 " em
-
A 5
A -
"
.
&
i
a
\
a \
*
am x
.
a .
S =
> -
~
L )
-
oe RT .
,
oe ie
-
:
" (-
E he
k "Ne -
* I -
.
"
_t ;
TI x ol
Rr
hy
4
a
,
= "i
A
=
. A,
. rr
> ye.
- =
. 0
5
5
- .
b
- - s
a
Pa
v
P "
~~
A i ~
-~ 8
;
; .
2 b> -
*
a oO
4
:
~
- i
>
I - . Y,ow h
: ppt '
- |
Be 5
'
_ . 1010
gv |
Py :
; E y :
4 oy
h / >
"
St "
o- '
o J.fw
' )
. , y
:
:
h Toa , J
= '
py
-
"
4
x J,
: iB :
Z :
'
; ,
>
: :
' )
0 i.
=
.
x : qh, "
:
i : ,yy
>
- y v/ x
11
Gas Account 2020 Cost Annual Cost Total 10-Year
Cost
Central Plant
$643,500 $2,145,000 $21,450,000
(Heating)
CNG Fueling Station *$42,037 *$150,000 *$1,500,000
TOTAL $685,537 $2,295,000 $22,950,000
Original budget for 2020 is $1.5 million. This new 2020 budget represents a savings of $800K
*Conservative estimate. Varies with federal incentive
12
13
Project Type Cost per Metric Ton CO2
Convert Buses to Electric $900
Stage 3 Mechanical Conservation $300
RNG $209
Renewable Diesel $125
PSE Green Direct Electricity $61
14
a
1515
Limitations of Translatable Documents
PDF files are created with text and images are placed at an exact position on a page of a fixed size.
Web pages are fluid in nature, and the exact positioning of PDF text creates presentation problems.
PDFs that are full page graphics, or scanned pages are generally unable to be made accessible, In these cases, viewing whatever plain text could be extracted is the only alternative.