Carter Lake Hydroelectric Project Presented to CREA Energy Summit By Carl Brouwer October 2011
Dec 30, 2015
Carter Lake Hydroelectric Project
Presented to CREA Energy SummitBy Carl Brouwer
October 2011
Carter Lake Outlet Bypass Addition
Capacity: 250 cfsCompleted 2008Cost: $12M
Project Layout
Project Particulars
2 -1,300 KW Francis Turbines480 volt generators and controls85 foot x 38 foot Powerhouse2oo feet of 72-inch PenstockConnection to St. Vrain CanalConnection to PVREA
Project Sizing
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 10
100
200
300
400
500
Time Flow Exceeded
Flo
w (
cfs
)
0 50 100
150
200
250
300
350
400
450
0
2000
4000
6000
8000
10000
Design Flow Rate (cfs)
MW
hrs
Station Layout
Layout Drawing
Outside View
USBR Lease of Power PrivilegeInitiate LOPP
Process USBR Advertises
in Fed. Register Prepare
Proposal USBR Proposa
l Review
Preliminary LOPP
Final LOPP
1 Month
2 Months
6 Months
2 Months
1 Months
3 Months
•Replaces FERC on USBR Facilities•Requires EA•Approx. 1 – 1.5 Years•Approx. $5/MWhr•40 Year Term
Project CostsCOST ITEM AMOUNTTurbines/Generators/Controls
$3,500,000
Site Construction $1,800,000
Transformer/Switchgear $130,000
PVREA Costs $140,000
Engineering/CM/Administration
$630,000
TOTAL $6,200,000**Does not include permitting, feasibility, pre-design, and turbine design of $500k
Project EconomicsPresent Value of Costs: $8,300,000Present Value of Revenue:
$13,400,000Net Present Value of Project:
$5,100,000Benefit/Cost Ratio: 1.6
Financing$2,000,000: 2%, 20-Year-Colorado
Water Resources and Power Development Authority
$4,700,000: 2%, 20-Year, Internal Loan from Northern Water to New Hydropower Enterprise
Loan Repayment Based Upon Revenue-Only
Includes 1-Year Debt Service in Reserve (Rainy Day Fund)
Future Cash Flow
2012
2014
2016
2018
2020
2022
2024
2026
2028
2030
2032
2034
2036
2038
2040
2042
2044
2046
2048
2050
2052
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1
2
3
4
5
6
7
8
USBR LOPP
O&M
NW Loan
CWRPDA Loan
Revenue$1
00
K