The most important factors when it comes to achieving net zero energy in a building is selecting the type and how much alternative energy will be used. In simple terms, an alternative energy source should be selected based on the natural resources available in a given geographical region of the world and where the building construction is situated.
For instance, for a coastal or marine construction site, the homeowner might consider wind while in a tropical site solar. On an island moderate site, a building owner might explore the local geothermal sources. But whichever option is opted for, there are no strict guidelines for selecting an energy source for a building site.
Apart from alternative energy source, technological advances and sustainable construction designs should be considered so as to further lower a building’s demand for conventional grid utilities. Here are some options that can help your building to achieve zero net energy.
Day lighting and individual lighting
In a majority of commercial building, the only other energy load that is more demanding than heating is cooling. This largely consists of the energy used or consumed by lighting. Due to technological advancements today, lighting systems and products have improved significantly leading to lowered energy consumption demands. Of course, not using artificial lighting at all is one of the best ways to lower energy consumption.
Net zero energy building & construction in WA effectively allow natural day light to penetrate deep into all occupied rooms by employing high-tech sensor lighting systems that have a capacity to self-adjust natural lighting output based on the amount daylight present. Others that can be used include occupancy sensors that do not need to be regularly lit. For artificial light sources, make a point of using LED bulbs as they consume less power compared to the standard lighting bulbs.
Super-insulating the building
Most building technologies and materials are designed to contribute to a building’s ability to lower cooling and heating loads. In this case, the concept of super-insulation comes in handy as it makes a building as air-tight as possible. How so, you might ask. Well, it’s done by adding multiple layers of high performance insulating materials to a conventional building structure. It can also be achieved by using site casted or panelised wall systems. These kinds of are able to do away with thermal bridging while providing perfect structural performance. In this case, the most used non conventional wall structural systems include insulated concrete forms and structural insulated panels.
Passive solar design
Solar gain is mostly responsible for heat gains in a home. This in turn drives the costs of cooling the building through the roof. However, the sun is a valuable source of natural light. This means that solar gain in winter can help heat a building making it comfortable for the occupants. Passive solar in this case refer to a building’s ability to naturally collect, store and distribute energy as required in accordance to a building’s site exact climate. To create a net zero energy building, pay a closer attention to the building’s orientation on the site. For instance, door and window placement is critical to passive solar design.