Performance verification
The data analysis on June 11, 2018, showed the system generating a peak output of 74 kW (102 hp). Based on the collector’s performance curve and a pool temperature of 26 C (79 F), this number meets the expected peak system power output as per the Solar Rating and Certification Corp. (SRCC) certified performance curve. The SRCC is a standard measurement certification process that calculates the expected peak thermal power generation based on solar gain, fluid temperatures, and flowrates.
The data for nearly two-and-a-half weeks of operation showed an average daily production of 466 ekWh of energy, which resulted in a monthly output of 14,446 ekWh. According to the original simulation completed in July, as part of the feasibility study, the anticipated energy generation was 14,889 ekWh. This meant the system was performing as expected.
Operation and maintenance
The system only requires filling and draining seasonally. The collectors must not contain water outside of the operating season (May to September), as freezing may damage the collectors beyond repair. At the end of the season, the collectors are drained via gravity at the purpose-built drain valve in the northwest corner of the building.
References:
- Commissioning Report for Lions Club of Credit Valley Outdoor Pool Solar Retrofit Project, July 27, 2018, by Ian Sinclair, P. Eng. Project Consulting Engineer.
Daniela Paraschiv is the manager of the energy management section at the City of Mississauga. She is a licensed professional engineer of Ontario, a project management professional, as well as a certified Lean Green Belt practitioner. With more than 25 years of experience in the energy sector, Paraschiv’s approach to conservation starts with engagement of the stakeholders responsible for buildings and sites operation. She believes the key to achieve sustainable energy savings is tapping into people’s desire to embrace innovation and the willingness to accept the challenges of a new start. As changing the status quo requires time and perseverance, Paraschiv is committed to finding ways to transition to a new mindset which supports sustainability at all levels. She can be reached via e-mail at daniela.paraschiv@mississauga.ca.
