Many buildings have not yet adopted basic practices to have a more economical building, such as replacing lamps: ‘‘all lamps and luminaires in common areas can be replaced by LEDs aiming at low electrical energy consumption and high environmental quality. This includes parking lots, roads, convenience centers and green areas’’, says Gianlucca Oliveira, Operations Manager at Cushman & Wakefield.
• Rainwater harvesting: rainwater can be captured, filtered, chlorinated and directed for use in some areas of the building, such as toilets and irrigation in gardens. In addition to this initiative, aiming at an even more economical building, it is possible to study the contracting of firm demand with the local water concessionaire. The firm demand contract is a set of facilities signed between the customer and the water and sewage concessionaire to obtain more attractive prices.
• Faucet aerators: A good option to reduce water waste is to install faucet aerators in sinks in common areas. The aerator is an accessory that injects air into the water jet and provides the sensation of greater flow, which can generate savings of up to 80%.
Elevator regenerative system
The elevators regenerative system is composed of energy regeneration drives. That is, instead of wasting energy in the form of heat, it feeds back into the internal electrical grid of the place where the equipment is located. In this way, energy is reused by other elevators, for lighting, air conditioning, computers and other equipment that are connected to the same electrical grid as the building, as Gianlucca explains: ''this mechanism is undeniably very efficient and advantageous, as it can reduce up to 75% energy use compared to non-regenerative elevators, making the building more cost-effective''.
Electricity free market
The free electricity market allows consumers considered to be free to purchase electricity from other suppliers, not necessarily from the local utility, so it is possible to negotiate directly with generators and energy traders and choose the supplier. Currently, to be considered a free consumer, each consumer unit must have a minimum contracted demand of 1500 kW. Click here to learn more: ''migration to the free electricity market can provide savings of 10 to 20% to the building compared to the captive market (Enel, Light and others)'', says the Operations Manager.
Small changes contribute to a more economical building
In addition to the tips we present, installing electric hand dryers and light sensors in common areas also contribute to a more economical building. Check which practices are within your reach and start implementing them right now to have a more economical building.