| Sizing the energy draw for various tools on construction sites involves assessing the power requirements of each piece of equipment to ensure adequate and efficient power supply. Tools like concrete mixers, drills, saws, and lighting systems each have specific power demands that can vary significantly. For instance, heavy-duty equipment such as cement mixers and large power saws generally require more power, often necessitating the use of generators with higher output capacities. To effectively manage energy consumption, it’s crucial to calculate the total wattage needed by summing up the individual requirements of all tools likely to be used simultaneously. This approach helps in selecting the right generator size, preventing power shortages and optimising operational efficiency. For construction sites with variable power needs, using a scalable and flexible power solution from providers like USP&E ensures that energy demands are met without oversizing, which can lead to unnecessary fuel consumption and increased operational costs.
Power Consumption Chart |
| The following ratings are approximate. |
Power Consumption Chart |
| The following ratings are approximate. |
| Item | Starting Wattage (W) | Running Wattage (W) |
| Circular Saw | 2400 | 1200 |
| Drill | 1800 | 720 |
| Edger | 2400 | 960 |
| Electric Chainsaw | 2400 | 1200 |
| Electric Lawn Mower | 4320 | 1440 |
| Electric Pressure Washer | 3600 | 1200 |
| Electric String Trimmer | 1500 | 600 |
| Jig Saw | 1800 | 720 |
| Miter Saw | 2100 | 840 |
| Orbital Sander | 1800 | 600 |
| Paint Sprayer | 1080 | 360 |
| Planer | 2400 | 960 |
| Router | 1500 | 600 |
| Water Pump | 3000 | 1000 |
| Wet/Dry Vacuum | 2500 | 888 |
| Winch | 5400 | 1800 |
| Furnace Fan, gas/fuel oil furnace | ||
| 1/8 horsepower (hp) | 500 | 300 |
| 1/6 horsepower (hp) | 750 | 500 |
| 1/4 horsepower (hp) | 1000 | 600 |
| 2/5 horsepower (hp) | 1400 | 700 |
| 3/5 horsepower (hp) | 2350 | 875 |
| Central Air Conditioner | ||
| 10,000 BTU | 2200 | 1500 |
| 20,000 BTU | 3300 | 2500 |
| 24,000 BTU | 4950 | 3800 |
| 32,000 BTU | 6500 | 5000 |
| 40,000 BTU | 6700 | 6000 |
| 1/4′ Drill | 300 | 300 |
| Jigsaw | 300 | 300 |
| Electric Weed Trimmer | 500 | 500 |
| Belt Sander | 1000 | 1000 |
| Disc Sander | 1200 | 1200 |
| Chain Saw | 1200 | 1200 |
| Worm Drive Saw | 3100 | 1560 |
| 12′ Concrete Cutter | 3600 | 1800 |
| 7 1/4′ Circular Saw | 3000 | 1500 |
| Disc Grinder | 4000 | 2000 |
| Air Compressor (Average) | 4000 | 2000 |