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Sign upDecember 20, 2023
Wyckaert Bouwonderneming
Ghent
For Wyckaert's construction project, two Neargrid battery systems provide power, including for the three large tower cranes. Initially, a high-voltage grid connection was considered but was impractical due to its distance from the site. The alternative, using diesel generators, would have required 700kVA of power, resulting in noise, pollution, and high diesel consumption. Instead, a 63A low-voltage connection was used to recharge the batteries, which then supply power to the site during the day. This solution eliminates diesel use, is noiseless, requires no maintenance, and improves productivity, making optimal use of the limited available grid power.
By eliminating all diesel power on site, we saved around 400 liters of diesel per day, avoiding approximately 1 ton of CO2 emissions daily. With diesel costing 1€ per liter, this equated to a daily diesel cost of 400€. In contrast, the electricity consumed from the grid for the Neargrid battery systems, at 0.3€ per kWh for around 400 kWh, costs just 120€ per day. This results in daily cost savings of approximately 280€.
Due to the increasing electrification of society, the need for peak power provision increases. The grid is not always able to provide the peak power demand. Diesel generators are often used to produce this peak power. They have a bad efficiency (5%) in this operating range, use fossil fuels and pollute with CO2, Nox, Sox, noise and particulates. Moreover, they are very cumbersome in operation: regularly refuelling and rotating machines requiring maintenance. To solve this, Near grid Solutions developed a mobile battery system enabling customers to use the electricity grid and optimizes the use of diesel generators or even avoids using them completely. The Green Box is a power booster that is a perfect alternative for diesel generators. Moreover, the Green Box can also optimize the use of diesel generators when its use is unavoidable. In comparison with available battery systems, the Green Box does not use Li-ion batteries resulting in important technical and economical advantages.
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