Use of Solar Heat Pumps in Greenhouse Systems: Implementation and Benefits

A New Path for Energy Transformation in Agriculture

The agricultural sector is one of the areas with high energy consumption. In greenhouses, fossil fuels used for temperature control increase both operating costs and carbon emissions. Enge Energy’s ENGESOLARBOX® technology offers an environmentally friendly and efficient solution with zero fossil fuels.

What Is a Solar Heat Pump?

Solar heat pumps use solar energy as a heat source to transfer heat from the air, water, or ground to the greenhouse. When integrated with ENGESOLARBOX® systems, maximum efficiency is achieved from sunlight, providing a stable temperature 24 hours a day.

A System that Makes a Difference with ENGESOLARBOX® Technology

ENGESOLARBOX® is Enge Energy’s patented solar heat wall and hot air collector system.
This system directly heats the air using solar energy and directs it into the greenhouse. When combined with a solar heat pump, it can simultaneously meet both heating and ventilation needs.

Result: Zero Fuel – Zero Waste – Zero Carbon.

Application Steps in Greenhouse Systems

1. Determining the Heating Requirement:

Analysis of plant type, greenhouse volume, and climate conditions.

2. Selecting System Components:

Integration of the ENGESOLARBOX® module, solar heat pump, air ducts, and automation system.

3. Automation Control:

Automatic adjustment of temperature and humidity via sensors.

4. Heat Storage:

Energy collected during the day is stored for nighttime use.

Energy Efficiency and Performance Gains

• Up to 70% energy savings
• Significant reduction in heating costs
• Payback period as short as 3-4 years
• 80% reduction in carbon emissions
• Up to 25% increase in plant yield with stable temperatures

Application Areas

ENGESOLARBOX® Solar Heat Pump Systems can be applied in various agricultural production environments, including:

• Vegetable and fruit greenhouses (tomato, pepper, strawberry, etc.)
• Seedling and flower production facilities
• Aromatic plant cultivation
• Winter production greenhouses
• Tropical plant production

These systems ensure continuous production even in low temperatures, especially in the Marmara, Aegean, and Central Anatolia regions.

Technological Integration: Solar Heat Wall + Heat Pump

ENGESOLARBOX® modules feature specially designed solar heat walls that capture sunlight and heat the air. This hot air supports the heat pump’s evaporator, increasing the system’s Coefficient of Performance (COP).
As a result, the pump consumes less electricity while producing more heat.

Environmental Impact and Sustainability

Developed in line with Enge Energy’s motto “Zero Fuel, Zero Waste, Zero Carbon,” these systems:

• Minimize carbon emissions,
• Activate renewable energy use in agriculture,
• Promote energy independence,
• Provide solutions against climate change.

Automation and Smart Control

With Enge Energy’s advanced automation software, the system:

• Analyzes daily temperature variations,
• Adjusts the heat pump operation based on solar radiation,
• Can be monitored and reported remotely.

This enables operators to track energy consumption in real time and optimize efficiency.

Economic Return Analysis

For an average 1,000 m² greenhouse investment:

• Installation cost: 1 unit
• Annual fuel savings: 0.25 unit
• Payback period: Less than 4 years
• After that, nearly zero operating cost for continued operation

Efficient Agriculture Powered by the Sun

Using solar heat pumps in greenhouse systems is no longer the solution of the future—it’s the solution of today.
With ENGESOLARBOX® technology, farmers can reduce energy costs while producing sustainably, without harming the environment.

This approach defines the new standard of sustainable agriculture:
Zero Fuel, Zero Waste, Zero Carbon.