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Posted on 8th Dec 2014
Lots of beginners are interested in figuring out the energy needs that they will have while maintaining an average grow box. They start out thinking that this is a big factor, because of the way that we often think about business processes, but over time, but a lot of them find out is that energy costs for hydroponics are not really that big of a deal in most projects. With that said, it is a good idea to look at how much energy your grow box will use, and how much that will cost.
The Average Grow Box
Experts point out that the average hydroponics grow box can be plugged into a standard 110V wall outlet. A box may draw 2 to 10 amps of electricity over time, but a lot of this depends on the various features of the grow box itself. For example, more powerful grow lights will draw more electricity. Same with pumps and vents. The smallest systems have economical fans, not too different from the kinds of small fans that might run inside computer components or in other small systems. Larger grow boxes may have more expensive air circulation equipment that will draw more power on a regular basis.
The Cost of Energy Use in Context
The bottom line is that, while reducing energy consumption is good for the planet, and you can get substantial energy savings from an energy-efficient grow box system, in terms of business startup costs, energy costs are not likely to be substantial elements of the business plan. For example, check out this article from High Times showing the ‘$1,000 grow room.’ You'll note that almost all of the costs detailed here are for physical products, such as equipment and nutrients. There's not a lot of breakdown of energy costs, because these will probably be in the tens of dollars per grow cycle, not in the hundreds of dollars. In other words, when compared with the costs of equipment, they’re not much.
Efficient Plant Growth - Naturally
In general, plants grow without a lot of external power. Of course, in soil-based gardens, they get a substantial amount of energy from the sun, naturally. But grow lighting has evolved to the point where it does not usually rack up the owners electric bill all that much. As for pumps and water handlers as well as air handling equipment, these draw power when they're on, but they don't have to run 24/7. A lot of making a grow box energy-efficient is in structuring the ways that plants take in air, water and light. Micromanaging is central to the hydroponics process -- and in that process, you can make sure that your grow box doesn't use more energy than you want it to.