Alderney 5 Energy Project Brief
Alderney 5 Energy Project Brief
Alderney 5 Energy Project Brief
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Transportation and Public Works<br />
Julian Boyle, P.Eng.<br />
EUGS Committee, July 18, 2007<br />
<strong>Alderney</strong> 5 <strong>Energy</strong> <strong>Project</strong> <strong>Brief</strong><br />
A unique, world class project, demonstrating HRM Council’s<br />
leadership in promoting and using economically and<br />
environmentally sustainable energy solutions.
<strong>Alderney</strong> 5 <strong>Energy</strong> <strong>Project</strong> <strong>Brief</strong> – EUGS, July 18, 2007<br />
Transportation and Public Works<br />
Julian Boyle, P.Eng.
<strong>Alderney</strong> 5 <strong>Energy</strong> <strong>Project</strong><br />
Transportation and Public Works<br />
Julian Boyle, P.Eng.<br />
HEATING AND<br />
COOLING<br />
INFRASTRUCTURE<br />
IS GETTING OLD.<br />
2004 <strong>Energy</strong> Costs<br />
Electricity $406,000<br />
Oil $155,000 (based on $0.38/litre)<br />
1. <strong>Alderney</strong> Landing Theatre<br />
2. <strong>Alderney</strong> Gate Office<br />
3. <strong>Alderney</strong> Library<br />
4. Dartmouth Ferry Terminal<br />
5. Dartmouth City Hall<br />
<strong>Project</strong>ed FY2007 <strong>Energy</strong><br />
Approx $730,000<br />
$200,000 increase within last 3 yrs
Transportation and Public Works<br />
Julian Boyle, P.Eng.<br />
5 Elements of <strong>Project</strong>:<br />
1. Lighting Retrofit – <strong>Alderney</strong> Gate, Dartmouth City<br />
Hall, Ferry Terminal Buildings.
Transportation and Public Works<br />
Julian Boyle, P.Eng.<br />
2 ND Element of <strong>Project</strong>:<br />
#2 District Heating and<br />
Cooling Piping<br />
This will create “<strong>Energy</strong> Center”.<br />
All heating and cooling<br />
will come from <strong>Alderney</strong> Gate.<br />
Chilled Water Supply<br />
and Return Piping<br />
Mechanical Room –<br />
Centralized Heat + Cool<br />
Hot Water Supply and<br />
Return Piping<br />
BENEFIT<br />
District heating/cooling ;<br />
» Reduced maintenance<br />
» Reduced capital<br />
replacement costs<br />
» More efficient operation
Transportation and Public Works<br />
Julian Boyle, P.Eng.<br />
5 Elements of <strong>Project</strong>:<br />
1. Lighting Retrofit – <strong>Alderney</strong> Gate, Dartmouth City Hall, Ferry Terminal Buildings.<br />
2. Centralized Heating and Cooling Piping<br />
3. New High Efficiency Gas Boilers<br />
Gas Conversion + New<br />
High Efficiency Boilers<br />
Chilled Water Supply<br />
and Return Piping<br />
Hot Water Supply and<br />
Return Piping
4th Element of <strong>Project</strong>:<br />
# 4 Seawater Cooling System<br />
Chilled Water Supply<br />
and Return Piping<br />
Titanium Heat<br />
Exchanger<br />
“Warm” Seawater Discharge<br />
Seawater Intake
Seawater Cooling from Halifax Harbour<br />
Not New<br />
• PURDY’S WHARF COMPLEX<br />
o 4.9 MW (1983-1989)<br />
o TEN MONTHS FULL<br />
SEAWATER COOLING<br />
• HALIFAX CASINO HOTEL<br />
o ? MW (2000)<br />
o TEN MONTHS FULL<br />
SEAWATER COOLING<br />
• BEDFORD INSTITUTE OF<br />
OCEANOGRAPHY<br />
o 1.5 MW (2002)<br />
o YEAR ROUND SEAWATER<br />
COOLING@ 4 C
Halifax Waterfront and Bathymetry<br />
BIO<br />
BIO<br />
PW &<br />
Casino<br />
PW&CASINO
Halifax Harbour Bathymetry (Looking<br />
South)<br />
<strong>Alderney</strong> Site
18<br />
HALIFAX HARBOUR<br />
TEMPERATURES<br />
Water temperature (C)<br />
16<br />
14<br />
12<br />
10<br />
8<br />
6<br />
Sea level<br />
5m deep<br />
15m deep<br />
25m deep<br />
4<br />
2<br />
0<br />
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
18<br />
HALIFAX HARBOUR<br />
TEMPERATURES<br />
Water temperature (C)<br />
16<br />
14<br />
12<br />
10<br />
8<br />
6<br />
4<br />
2<br />
0<br />
Sea level<br />
5m deep<br />
15m deep<br />
25m deep<br />
Approx<br />
Temp needed to do direct<br />
cooling<br />
ACES will use<br />
available cold energy<br />
in winter and store for<br />
peak summer use<br />
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
5 th Element of <strong>Project</strong>:<br />
# 5 Borehole Cold <strong>Energy</strong> Storage System<br />
World’s 1 st<br />
Geothermal<br />
Cold <strong>Energy</strong><br />
Storage<br />
with no heat pumps<br />
The technology has successfully vetted multiple peer<br />
review by various Federal departments as part of fundin<br />
application processes and HRM due diligence. Includin<br />
• FCM<br />
• SDTC (Sustainable Development Technology Canada<br />
• TEAM (Technology Early Action Measures)
Geothermal Response Testing<br />
(mobile testing unit on site)
Armdale Test Site
Standard (Traditional) U-Tube Borehole Storage from Surface Water with<br />
Chillers (L) and Concentric (Co-Axial) Borehole Storage from Surface Water<br />
without Chillers (R)
5 Elements of <strong>Project</strong>:<br />
5. Underground Thermal <strong>Energy</strong> Storage System<br />
Borehole field will<br />
consist of 100-120<br />
boreholes, 4 ½”<br />
diameter, 600 feet<br />
deep each.<br />
ACES TM<br />
Borehole Field<br />
Titanium Heat<br />
Exchanger<br />
Chilled Water Supply<br />
and Return Piping<br />
Seawater Discharge<br />
Will use a new type<br />
of borehole heat<br />
exchanger – 300%<br />
more efficient –<br />
making cold storage<br />
for direct AC<br />
technically feasible.<br />
This will be the 1 st<br />
project in the world<br />
of this type.<br />
Seawater Intake
Transportation and Public Works<br />
Julian Boyle, P.Eng.<br />
Financial Picture –<br />
Total <strong>Project</strong> Cost = $3.6 million Federal Tech Contribution<br />
= $1 million<br />
HRM contribution<br />
= $1.0 million<br />
Capital Lease with HPES<br />
= $1.6 million)<br />
<strong>Energy</strong> Savings = $250,000 (2008)<br />
Avoided Capital Costs (oil tanks, boilers, chillers) = $800,000+ in years<br />
3-15. Possibility to eliminate 100% of all CFC based air conditioning.<br />
Greenhouse Gas Reductions = 900 tonnes per year.
Transportation and Public Works<br />
Julian Boyle, P.Eng.<br />
Unique feature of the project (beside the technology) is the financing<br />
Features;<br />
•Low Risk to HRM Investment – (heating/lighting savings).<br />
•Private partner is putting their money where mouth is on<br />
innovative technology, will be responsible for operating<br />
cooling system – and payments to them based on amount of<br />
energy delivered.<br />
•Private partner is getting help from the Federal<br />
Government to offset part of the Capital construction costs<br />
•HRM will own all the assets
Transportation and Public Works<br />
Julian Boyle, P.Eng.<br />
Summary of Benefits<br />
1. Reduce cost of utilities through conservation.<br />
2. Economic upgrade of building systems, avoiding future Capital cost<br />
requirements.<br />
3. Environmental – GHG Reductions and possibility to eliminate all CFC<br />
refrigerants in use.<br />
4. World 1 st renewable energy storage technology.<br />
5. Tourist attraction in downtown Dartmouth.<br />
<strong>Project</strong> clearly demonstrate HRM Council’s leadership and commitment in<br />
promoting and using Environmentally and Economically Sustainable <strong>Energy</strong><br />
Solutions.
Seawater Cooling/Heat Exchanger Building<br />
& Interpretive Center<br />
Draft
Mechanical Room –<br />
Centralized Heat + Cool<br />
New Gas Fired Equipment<br />
Hot Water Supply and<br />
Return Piping<br />
ACES TM Cold<br />
Storage Borehole<br />
Field<br />
Chilled Water Supply<br />
and Return Piping<br />
Titanium Heat<br />
Exchanger &<br />
Pumps<br />
Seawater Discharge Pipe<br />
Seawater Intake Pipe
Real Property and Asset Management<br />
Julian Boyle, P.Eng.<br />
REAL AVOIDED CAPITAL<br />
COSTS…<br />
1988 Oil tanks at <strong>Alderney</strong> Gate<br />
19?? Oil tank at<br />
Old Dart City<br />
Hall
REAL AVOIDED CAPITAL<br />
COSTS…<br />
Real Property and Asset Management<br />
Julian Boyle, P.Eng.<br />
1988 Chillers using banned R-11 refrigerant<br />
Ferry Terminal, and Theatre are using R-22 refrigerant<br />
Chillers Upgrade due newer<br />
banned refrigerants will cost<br />
$300,000-$500,000
Real Property and Asset Management<br />
Julian Boyle, P.Eng.<br />
REAL AVOIDED CAPITAL<br />
COSTS…<br />
Very old boilers at Dart<br />
City Hall and Ferry<br />
Terminal unnecessary<br />
replacement with<br />
“rationalization” of M&E<br />
systems<br />
Replacement of rooftop<br />
chiller at Dart Ferry<br />
Terminal - $60K
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