Vented Section of greenhouse with GAHT
Apr 18 2021
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10 Do’s and Don’ts for Designing a Ground to Air Heat Transfer System

A Ground to Air Heat Transfer system– also called Earth Tubes, Earth Battery or a Climate Battery – is a low-cost method for heating and cooling your greenhouse year-round using only the sun and the thermal mass of the soil underground. For more info on how it works, see our GAHT® page here or watch,…
all-weather greenhouse
Apr 15 2021
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What Is An All-Weather Greenhouse?

As much as cultivators wish they could predict what their outdoor growing season will be like, they are always at the mercy of Mother Nature. Whether it’s an early freeze, smoke pollution, drought or hailstorm, extreme and volatile weather patterns are becoming more frequent and are an increasing threat to our crop yield and food…
evaporative cooling system
Apr 02 2021
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How Do I Control Humidity in My Greenhouse?

Managing and balancing temperature and humidity in the greenhouse can be a source of frustration, further compounded by location, climate, greenhouse environmental control systems, and crop choice. Before considering options like venting, humidifiers, and evaporative cooling walls, it is important to understand relative humidity and its relation to temperature. Once this is understood we can…
placing the gaht
Mar 26 2021
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Adding A GAHT® To An Existing Greenhouse

A Ceres GAHT® (ground to air heat transfer) System is our patented geothermal climate control technology that has helped our growers maintain comfortable growing conditions, year-round, at a fraction of the cost of a traditional HVAC system.  For in-depth information on how a GAHT® system works, visit our GAHT® page or watch this video.  The…
The SunSense™ Brain
Mar 03 2021
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4 Benefits of an Automated Controller in a Vented Greenhouse

Why an automated controller is better than a thermostat for your climate controlled greenhouse Ceres’ patented solar design and innovative climate control technologies enable us to build year round greenhouses in any climate. Depending on geographic location, crop application, and specific client needs our greenhouses might operate with different types of ventilation, HVAC and other…
inside the sunchamber
Sep 10 2020
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Growing Plants with Carbon Dioxide

By Hervé Maumus-Hue Carbon dioxide (CO2): The Basics  Introduction 1 - Different types of plants, different biological processes 2 - C3 plants: the importance of CO2  supplementation 3 - Supplying CO2 - Considerations 4 - Injection techniques 5 - Estimating the cost of CO2 6 - Injecting CO2 can be more cost effective than supplement…
9 CARDINALS parameters
Sep 09 2020
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Thinking About “Plant Diet”

By Hervé Maumus-Hue Managing a perfect growing environment is challenging and is the topic of much research. We know that the environment dictates the efficiency of these chemical and physical processes/reactions. As shown below, the environment can be divided into 9 main parameters called the nine cardinal parameters: CO2, temperature, humidity, light, wind, oxygen in…
visible spectrum
Jun 19 2020
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Tuning the Spectrum – An Introduction to Far-Red 

At Ceres, we help our clients become smarter growers by staying at the forefront of greenhouse technology. We conduct our own research on greenhouse systems and collaborate with research institutions so we can continue to optimize our structures. The following is an overview of Red and Far Red light radiation and its effects on plants.…
light comparison graph
May 18 2020
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LED or HPS: Which Supplemental Lighting Option Should You Choose For Your Greenhouse?

For the second installation of our greenhouse lighting series, we will be discussing the difference between the two most commonly used artificial lights in commercial greenhouse operations - HPS (high-pressure sodium) and LED (light-emitting diode).    A Brief Introduction HPS bulbs create light by sending electricity back and forth through an “arc tube”. An external…
light harvesting
May 08 2020
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Light Harvesting Advantages of Passive Solar Design

The Relationship Between Greenhouse Design and Supplemental Lighting  The benefit of growing in a greenhouse, rather than growing indoors, is the ability to utilize free energy from the sun. The sun’s energy is more powerful and effective than any artificial light available. The downside is it’s not consistent. Sunlight intensity will fluctuate depending on a…