Overview Building Features Grade JK-6 Grade 7-12

Solar Hot Water

Real Time Data
a Solar Cell feed Power in KW KW
b Incoming Liquid Temp °C °C
c

Return Liquid Temp °C

°C
d

Domestic Hot Water Supply Temp °C

°C
e

Domestic Hot Water Flow Rate GPM

GPM
f

Solar Tank Temp °C

°C

Solar Hot Water - Mechanical RoomSolar thermal energy collection is the process of taking the sun's renewable energy and converting it into heat energy. Solar hot water heaters provide a clean alternative to fuel-burning or electric water heaters. By using the sun's radiant energy, solar hot water heaters cut down fuel consumption as well as the pollutants released when burning fuels.

The main components of a solar water heater include the collector, the heat transfer fluid, the heat exchanger, and the circulating pump. The solar collector looks similar to a photovoltaic (PV) cell and sits on the roof. It has a high efficiency coating to maximize the amount of energy absorbed. A glycol-water mix acts as a heat transfer fluid. Glycol is included to provide freeze protection in the winter months. The heat transfer fluid is pumped through the collector to absorb the sun's energy in the form of heat. The hot mixture then is sent through a heat exchanger in the storage tank where the heat is transferred to the incoming cold water. The heat transfer fluid is then sent back to the collector for re-heating.

Download the Solar Heating Piping Schematic.

How it is used in the school:

Solar CollectorA solar heated domestic hot water system is utilised to produce domestic hot water for the building. The system components include two (2) roof mounted flat panel solar collectors, an 80 gallon solar water storage tank, an 80 gallon electric water heater, and packaged pumping and control system. The storage tanks and controls are located in the first floor mechanical room 148 and can be seen through the corridor viewing window. The solar collectors are located on the roof above the science classroom. The electric water heater is included as part of the system to provide top-up heating for the system during low solar gain periods (cloudy days) and ensure there is always a sufficient hot water supply for the building. 



Greater Essex County District School Board