Your Guide to Solar Panels for a Greenhouse


Greenhouses are an important infrastructure if you have interest and gardening, or wish to grow a particular crop round the year. Setting up and maintaining a greenhouse consumes a lot of energy on the first go.

However, as per a survey, it was found that wavelength selective greenhouses had a better output of up to 20 per cent and plants used about 5% less water. Therefore, this is seen to be the best way one can naturally grow crops in optimal or required conditions.

Invest in Efficiency

The key strategy for optimal utilisation of the greenhouse is to make it as efficient as possible. The aim is to reduce the electricity demand required to heat or cool the system. Reducing the electricity demand reduces the size of the photovoltaic system.

Energy efficiency measures, like using adequate insulation and designing the greenhouse with passive solar design, are always a better investment than relying on a large photovoltaic system to operate the greenhouse.

Evaluate Battery Back-Up and Costs

People may or may not want to invest in a power grid for their greenhouse. Those who wish to keep the greenhouse functional for the entire year would want to invest in cost-efficient battery grid. To evaluate which battery or power is necessary, analyse the goal of setting up the greenhouse.

An off-grid greenhouse is a good decision where power availability is negligible. A simple and low-cost power system works well if you have a very small system. On the other hand, if you have a normal size solar panel system and can connect to the grid, a grid-tied system is more cost-effective.

Evaluate the Power Demand

Gauge your demand of the grid power. A small greenhouse might only have an exhaust fan that can work on direct current – therefore avoids the cost of an inverter, which converts DC to AC power. Whereas, a large setup will have  aerators, water heaters, water pumps, and possibly space heaters or cooling equipment.

The elaborate set-up signifies the need for a heavy duty system that can withstand and support a massive system. One can find the power demand of your greenhouse by adding up the wattage of all the electric components you plan to use.

Know Your Goals

Knowing the ultimate goal will help in choosing a better solar installer system. Different greenhouses will have varied objectives and therefore the device to suffice the needs will differ. Also, depending on the objective or the goal, there are different systems that can be installed. The goals may be-

  • Providing a reliable source of power and overcome the problem of frequent grid outage
  • Reducing carbon emissions and opting a more eco-friendly method of harvesting
  • Being independent of the electric grid, and creating an off-grid greenhouse to cut down the electricity expenses and drive a self-reliant system

Evaluate the Best Site

The site of the plantation can be judged as per your the goal. Once the goal is set, you can either opt for a residential one or a formal greenhouse. There is usually more room on the home’s roof, enabling you to install a larger system that powers both the home and greenhouse.

Also, a home-based system enjoys both, the ease of getting solar power and the eliminated hassle of extra wiring and connection setup.


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