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A Review of Solar Systems installed in Ontario
on Recreational Facilities in the past 10 years.
By: Andrew McKegney CETPresident, Solar Ontario Ltd.
Solar Ontario has been designing and installing solar systems for commercial and municipal
recreational facilities since 2005. We have professional, full-time solar system design & installation experience that goes back 37 years and 1,200+ systems.
Our focus has been on solar thermal (heating) systems for swimming pools and domestic hot water. These systems all displace natural gas generated heat – substantially reducing the amount of green house gases generated by the conventional heating systems.
In this presentation we take a quick look at typical municipal solar pool heating systems and a closer look at a well monitored solar system on an indoor pool.
We also discuss an energy saving technology developed, manufactured and installed by Solar Ontario, that came about as a result of our work on municipal swimming pools.
Jimmie Simpson Recreation Centre
Toronto, 2006
2 systems – 60 Collectors = 219 KWpt
21 Collectors = 77 KWpt
Total CO2 offset per year = 36.6 tonnes
Agincourt Recreation Centre
Scarborough Toronto 2006
1 system – 54 Collectors = 197 KWpt
Total CO2 offset per year = 24.4 tonnes
Centennial Recreation Centre
Scarborough Toronto, 2006
1 system – 56 Collectors = 204 KWpt
Total CO2 offset per year = 25.3 tonnes
Gihion Springs Pool
Etobicoke Toronto, 1990
1 system – 34 Collectors = 83 KWpt
Total CO2 offset per year = 7.3 tonnes
West Mall Pool
Etobicoke Toronto, 1990
1 system – 24 Collectors = 88 KWpt
Total CO2 offset per year = 7.7 tonnes
Park Lawn Pool
Etobicoke Toronto, 2010
1 system – 28 Collectors = 102 KWpt
Total CO2 offset per year = 9.0 tonnes
Rotary Park Pool
Etobicoke Toronto, 2010
1 system – 30 Collectors = 110 KWpt
Total CO2 offset per year = 9.6 tonnes
Weston Lions Pool
Etobicoke Toronto, 2010
1 system – 15 Collectors = 55 KWpt
Total CO2 offset per year = 4.8 tonnes
Sunnyside Pool
Toronto, 2010
1 system – 11 Collectors = 44 KWpt
Total CO2 offset per year = 3.8 tonnes
Lanspeary Pool
Windsor Ontario, 2010
1 system – 81 Collectors = 296 KWpt
Total CO2 offset per year = 25.9 tonnes
Lanspeary Pool
Windsor Ontario, 2010
1 system – 16 Collectors = 49 KWpt
Total CO2 offset per year = 4.3 tonnes
Remington Park Pool
Windsor Ontario, 2010
1 system – 15 Collectors = 55 KWpt
Total CO2 offset per year = 4.8 tonnes
Cobourg Centennial Pool
Cobourg Ontario, 2010
1 system – 32 Collectors = 117 KWpt
Total CO2 offset per year = 10.2 tonnes
Teeswater - Culross Pool
Region of South Bruce, 2010
2 systems – 38 Collectors = 139 KWpt
Total CO2 offset per year = 13.3 tonnes
Mildmay – Carrick Pool
Region of South Bruce, 2010
1 system – 40 Collectors = 146 KWpt
Total CO2 offset per year = 140 tonnes
Canada’s largest solar pool heating systemTansley Woods Community Centre
Burlington Ontario, 2010
1 system – 90 Collectors = 329 KWpt
Total CO2 offset per year = 40.7 tonnes
Tansley Woods CC, Burlington Main PoolDate of screen: September 26, 2010Outside air temperature = 61.7 F.
Solar heat collected = 12,780 BTU/min= 766,660 BTU/hr
Collector efficiency = 53.6%
Waste heat recovery system effectiveness = 73.8%Water flow = 1.1gpm @ 24/7 equals 1584 gal/dayHeat recovered = 185,980 BTU/day
Tansley Woods CC, Burlington Main PoolDate of screen: July 6, 2010Record shown: July 3 to July 6, 2010 (Heat wave )
Pool temperature fluctuations due to solar input –1.25 to 2.0 degrees F
White line = pool temperatureGreen line = pool heater set point temperature.
Tansley Woods CC, BurlingtonWarming Pool WHR systemDate of screen: June 8, 2010Outside air temperature = 64.4 F.
Waste heat recovery effectiveness = 81.1%Water flow = .6gpm @ 24/7 equals 864 gal/dayHeat recovered = 173,390 BTU/ day
Centennial Recreation Centre
Markham 2010
1 system – 24 Collectors = 88 KWpt
Total CO2 offset per year = 10.8 tonnes
Milliken Mills Recreation Centre
Markham Ontario, 2008
1 system – 18 Collectors = 66 KWpt
Total CO2 offset per year = 8.1 tonnes
Pool Water Waste Heat Recovery Systems
Article 565/90/7-12 of the Ontario Health Protection and Promotion Act of 1990,
states that all public swimming pools must add 20 litres of fresh water per bather
per day within 24 hours and 30 litres of fresh water per bather per day for spas.
Dumping pool/spa water and replacing it with cold fresh water to achieve compliance costs thousands of dollars a year per pool, in fuel, labour & water.
Many aquatic facilities try to maintain compliance with the regulation by backwashing the filters daily. This approach actually significantly reduces the filter’s efficiency. Filter backwashing should be based upon the pressure drop across the filter, not to achieve compliance with the regulation.
Many facilities require their operators to manually drain water. Frequently this results in significantly more water being drained than is necessary, costing extra water, heat and manpower.
Some facilities just drain water 24/7. This may achieve compliance but will cause much more water to be drained than is necessary.
Table of Bather Load and Fresh Water Make-up Requirements
Pool Bathers Litres dropped Daily Heat Lost* Annual Heat Lost Annual Heat Lost Annual Tonnes CO2
per day per day KiloJoules GigaJoules MegaWatt-Hours to make-up heat lost**
50 1000 91,378 33.35 9,264 1.74
100 2000 182756 66.70 18,528 3.48
150 3000 274,134 100.05 27,792 5.22
200 4000 365,512 133.40 37,056 6.96
250 5000 456,890 166.75 46,320 8.70
300 6000 548,268 200.10 55,584 10.44
350 7000 639,646 233.45 64,848 12.18
400 8000 731,024 266.80 74,112 13.92
450 9000 822,402 300.15 83,376 15.66
500 10000 913,780 333.50 92,640 17.40
550 11000 1,005,158 366.85 101,904 19.14
600 12000 1,096,536 400.20 111,168 20.88
650 13000 1,187,914 433.55 120,432 22.62
700 14000 1,279,292 466.90 129,695 24.36
750 15000 1,370,670 500.25 138,959 26.10
800 16000 1,462,048 533.60 148,223 27.84
850 17000 1,553,426 566.95 157,487 29.58
900 18000 1,644,804 600.30 166,751 31.32
950 19000 1,736,182 633.65 176,015 33.06
1000 20000 1,827,560 667.00 185,279 34.80
*Average cold water vs pool temperature difference = 13.9 C (25 F)
** Average Natural gas heater efficiency = 75%
Ajax WHR system 2012
Pool Water Waste Heat Recovery Systems
A pool water waste-heat recovery system. (WHRS), Solar Ontario’s WHRS can
recapture 75 - 80% of the heat being dumped - heat that has already been paid for!
Dump only the amount of water needed to comply - not more, not less.
Negligible operating costs - pennies per day! (no pumps, no compressors)
Very low maintenance costs - parts resistant to & compatible with pool water.
Simple, automated functionality, frees up the operator’s time while eliminating under or overage errors and ensuring
compliance.
Small footprint. 24 VAC operation allows flexibility in locating the system.
Proven product - Ontario designed and built - since 2008.
Analogue or digital performance monitoring.
Local control or B.A.S. control options.
Local monitoring or remote monitoring options.
Total energy saved monitoring options.
Thousands of dollars of energy savings a year and tonnes of GHG’s mitigated per WHRS installed
Markham Milliken Mills RC - 2008 Markham Centennial RC - 2010WHR system 2016
City of Markham Pool Water Waste Heat Recovery Systems
Brampton Cassie Campbell RC - 2010
Brampton Cassie Campbell RC - 2010
City of Brampton Waste Heat Recovery Systems
Cassie Campbell CC - 1 in 2011Chinguacousy Wellness Centre – 3 in 2011South Fletcher’s Sportsplex – 1 in 2012
Scarborough, Toronto YMCASolar Domestic Hot Water System - 2010
Date of screen: Dec 31, 2014Outside air temperature = 64.4 F.
Solar Domestic Hot Water Systems
Scarborough, Toronto YMCASolar Domestic Hot Water System - 2010
Date of screen: Dec 31, 2014
Scarborough, Toronto YMCASolar Domestic Hot Water System - 2010
Date of screen: October 31, 2016Energy Delivered to Facility to date: 231.588 Megawatt hours
So far this year the solar system has mitigated the production of Carbon Dioxide equal to what 884.14 mature trees would sequester in a year. = 21.22 Tonnes (based upon 24 Kg/tree/year)
Thank you for your time & attention!~
Sunny ways for all
1290 Speers Road unit 14Oakville Ontario, L6L 2X4
PH: 905-845-2433EM: [email protected]: www.solarontario.com
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