The integration of renewable energy into large construction projects is a necessary strategy to optimize resources and mitigate environmental impacts. In major projects, the energy demand is substantial, making the use of clean energy sources economically advantageous.
In a large construction site, it is possible to implement temporary medium- to large-scale solar plants, with capacities ranging from 100 kWp to 1 MWp. These plants are installed in areas adjacent to the construction site or on the roofs of temporary structures, such as offices and storage facilities.
The energy generated supplies the demand for lighting in common areas, the operation of water pumps for dust control, the charging of batteries for small equipment, and even the power supply for workers’ housing modules. And even if it does not fully meet the total energy demand, it becomes a more sustainable option compared to diesel generators, which are usually used to maintain power supply during possible outages.
In situations where the construction site is far from the power grid, the combination of renewable energy sources—known as a hybrid system—is extremely effective. Solar energy can be complemented by small wind turbines of up to 50 kW. These turbines, together with the solar panels, can power communication systems on the site, water pumping stations for groundwater-level control, or even maintenance workshops for smaller equipment.
The integration with battery energy storage systems ensures supply stability, even during periods of low solar irradiation or lack of wind, optimizing 24-hour operation.
Although less common on all construction sites, geothermal energy can be applied in projects that require temperature control of fluids or specific spaces. In civil engineering works involving underground structures, for example, the thermal stability of the soil can be used for climate control systems in underground workstations, or even for heating water used in concrete processes that require strict temperature control in cold climates.
A system of geothermal heat exchangers can stabilize the temperature of control environments, reducing the thermal load on cooling equipment and, consequently, energy consumption.
The implementation of renewable energy solutions aligns projects with global sustainability guidelines and achieves significant gains in operational efficiency, cost reduction, and energy autonomy. This is the essence of cutting-edge construction management. Discover the services of Stecla Engenharia and bring your project to life.
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