I passed a site of small wind and solar installations on the campus of a branch of our community college. The wind turbines are vertical axis (VAWT).
In the foregound, we have a buffer tank for our geothermal circuit. Pumps circulate glycol in the mitigated circuit between the heat pumps. In the background, two water heaters are used to power the restaurant. Just like the rest of the building mechanics, everything is controlled by the building-management computer system. The central computer cycles the start-up of various equipment and uses load shedding to reduce the electricity demand peaks as much as possible.
The next image displays an overview of the complexity of the piping. The cabinets at the bottom are water-to-water heat pumps which allow the surplus heat to be sent to the geothermal wells during the air conditioning period, and to draw heat to the restaurant in very cold weather.
Our restaurant has an extremely well integrated and efficient mechanical and electrical system design, allowing us to better control and minimize high peaks of electricity consumption. These are the control panels of different pumps, circuits, and hoods. In the foreground, the variable-frequency controllers and drivers of the restaurant’s air supply unit are used to modulate the fans for supplying fresh air, and the air for exhaust. This also maintains a comfortable ambient pressure, even if the door opens quickly or a kitchen hood starts.
Unique in Quebec’s catering industry, the air extracted from the building passes through a heat exchanger in order to preheat the fresh air, greatly reducing the heating requirements of the building. Each of the four hoods in our facility easily draws more than 1,000 cubic feet per minute (CFM) outside the building.
Since all of this air must be replaced by fresh air from the outside, a lot of heat is created, especially when the weather brings extremely low temperatures. Our heat recuperator therefore avoids one of the main energy expenditures of restaurants.
The Roscoe Wind Farm is one of the largest wind farms in the world, with over 600 operational turbines spread over 400 km2 of land, producing nearly 800 MW of energy, to date.
I created a simple circuit to capture and utilize the energy generated by a single solar cell, in order to charge my phone.
Here is a solar canopy parking lot at the UT Southwestern Medical Center in our area.
Small lineup of vertical axis (VAWT) windmills along the beachfront.
We noticed these earthships while driving through the state of New Mexico. Earthships are incredibly well designed, innovative, low-impact homes. They generally offer a multitude of sustainable features, are built with sustainable materials, designed for efficient heating and cooling, harvest both energy and water, and utilize a great variety of other friendly practices.
Our campus features scattered emergency call boxes that are powered by solar panels.
This LEED Platinum home plot exhibits a large variety of sustainable features, including this 30-panel solar installation atop the barn roof. The setup involves a 6.9 kW system, which serves to power roughly 1/3 of the plot’s operations (covering three buildings and a pond).
In addition, with the aid of supportive credits, the cost of the system was able to be reduced a great deal, to half of the overall total.
Our city has solar panels on all of the parking kiosks.
The Philadelphia Eagles football stadium has embraced a number of sustainability practices in its overall operations, along with gaining a LEED Gold Certification from the US Green Building Council.
As part of this, the stadium utilizes solar panel installations on several areas of its structure and throughout the north public parking area, which is lined with solar canopies. There are reportedly 11,108 solar panels used. Fourteen wind turbines also line the top of the stadium.
These technologies provide approximately 1/3 of the stadium’s energy, creating 4 MW per year. More can be read on Lincoln Financial Field’s energy practices and usage here:
Small scale solar setup outside of a local business park.
The solar panel installation at our hotel can be seen at the center right of the image, and utilizes the sunlight as a source of energy to heat running water. The temperature of the working fluid can rise up to 80°C. Thanks to our Pontos, cooling, and boiler systems, the running water is then cooled to 55°C by the end of the whole process.
In the summer season, there is no need to activate the Pontos or boiler systems, as the solar panels absorb enough sun energy (up to 240 kW) to warm up the running water.
More information on the Mosaic House Pontos system may be read in another post:
To date, the university’s campus features 80 dual recycling receptacles and solar-powered trash compactors. While the compactor takes little space more than an ordinary receptacle, it may hold 5 times the capacity of waste, due to the self-powered compressing process.
This also saves on the amount of labor required to keep up with accumulated trash. BigBelly Solar, the product manufacturer, notes that this can reduce trash collections by up to 80%.