Operational Experience With a 4 Kilowatt Solar System at a Northern National Park Presented By: Ken...
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Transcript of Operational Experience With a 4 Kilowatt Solar System at a Northern National Park Presented By: Ken...
Operational Experience With a 4 Kilowatt Solar System at a Northern National Park
Presented By: Ken Kelln, P.Eng
Kelln Consulting Ltd.
• Prince Albert National Park
• The Narrows: A Well kept secret
• 20Km from Waskesiu• Pristine wilderness• Perfect location for
clean, quiet Solar Energy
Kelln Consulting Ltd.
• Prince Albert National Park Map
• One of Canada’s first national parks
• The Narrows Campground is located 20Km from the nearest power line
Kelln Consulting Ltd.
• The park is enjoyed by thousands of visitors each year
• Essential services such as, light, water and power are taken for granted
Kelln Consulting Ltd.
• Front view of the 64-64 Watt Uni-Solar Shatterproof Panels, providing 4 kW of power to the Narrows Campground
Kelln Consulting Ltd.
• Side view of the panel array
• Each panel has a dimension of 30” x 54”
• Each panel provides 4 Amps of current in sunny conditions
Kelln Consulting Ltd.
• Uni-Solar shatterproof panels were chosen due to the possibility of vandalism
• The panels stand was designed to accommodate 80 panels
Kelln Consulting Ltd.
• The electrical wiring meets the Canadian Electrical Code
• Each junction box collects energy from 32 panels and delivers it to the electrical building
Kelln Consulting Ltd.
• The panels are wired four in “series”
• 16 of these groups of four are “paralleled”
• This configuration provides 64 Amps at 48 Volts DC
Kelln Consulting Ltd.
• An important criteria for any Solar system is an engineered stand that can withstand the test of time
Kelln Consulting Ltd.
• Rear view of the panel and electrical building
• This building contains the batteries, inverters, back-up generator and charge control regulators
Kelln Consulting Ltd.
• Another view of the electrical building
• A 500lb propane tank fuels the back-up generator
Kelln Consulting Ltd.
• Combustion air for the generator is provided via the vent hoods
• Both AC and DC lightning arrestors provide lightning protection for the Solar System
Kelln Consulting Ltd.
• Two Trace 4048 sine wave inverters provide 8 kW of power at 240 Volt AC to the campsite
• Two 40 Amp regulators prevent the batteries from overcharging
Kelln Consulting Ltd.
• Eight 6 Volt Surrett batteries are wired in series to provide 1025 Amp hours reserve at 48 Volts (20 hr. rate)
• The batteries are housed in a vented battery enclosure
Kelln Consulting Ltd.
• In the event of extended cloud coverage, a 7 kW Onan generator provides back-up for the Solar system
Kelln Consulting Ltd.
• The pump house is located approx. 1500 ft from the Solar array
• It houses all of the pumps and water treatment facilities for the park
Kelln Consulting Ltd.
• These original pumps were powered by a generator before the Solar array was implemented
• These pumps were replaced with more efficient DC pumps
Kelln Consulting Ltd.
• Four surge tanks provide 120 gallons of surge capacity
Kelln Consulting Ltd.
• A 4 gpm suction pump delivers well water to a 2000 gallon storage tank for the park water supply
Kelln Consulting Ltd.
• Three 24 Volt DC Solar pumps provide 12 gallons per minute from the 2000 gallon storage tank to the park
Kelln Consulting Ltd.
• Filtered water from the 4 gpm well is purified by the UV sterilizer before entering the 2000 gallon storage tank
Kelln Consulting Ltd.
• • The pump house
power is supplied from the electrical building, stepped up to 600 Volts and, stepped down to 120/240 Volt
Kelln Consulting Ltd.
• Four 6 Volt Trojan batteries, in a vented battery case, provide 24 Volts DC to the pumps
Kelln Consulting Ltd.
• Dusk to dawn lighting is provided at each washroom building
Kelln Consulting Ltd.
• To minimize the lighting requirements, six skylights were provided in each of the three sets of washrooms
Kelln Consulting Ltd.
• State of the art t8 fluorescent lighting with 3M specular reflectors provide the efficient lighting for the washrooms at night
Kelln Consulting Ltd.
• The washroom lights are controlled by a infrared motion eye
• This minimizes energy consumption in the washrooms
Kelln Consulting Ltd.
• Toilets were changed from pressure flushed units to standard flush units
• Frugal Flushes were installed to minimize water usage and hence energy usage
Kelln Consulting Ltd.
• A fish filleting shack has a motion controlled compact fluorescent light
• This happy fisherman is filleting a whitefish at night
Kelln Consulting Ltd.
• Scott manages the marina
• Scott is a very energy conscious individual
• Again, t8 fluorescent lighting is utilized
• A reflector is absent
Kelln Consulting Ltd.
• Coke machines are not known for being energy efficient
• The first unit installed consumed three times as much energy as the whole site
• This unit only uses one-fifth the energy of the first unit
Kelln Consulting Ltd.
• Outside lighting is provided by this double tube, cold weather starting t8 fluorescent at 6400 lumens
Kelln Consulting Ltd.
• Our thanks to Barb Karcher, of Saskatoon who asked why not a Solar Powered park? Because of her the Narrows will remain a quiet, pristine wilderness for many years to come
Kelln Consulting Ltd.
Consulting Engineers
Lumsden, Sask.