Energy Conservation: Helpful Hints From NGMA

NGMA Color_webWhy save energy? There are many reasons. Purchased energy is a significant and ongoing expense for most greenhouse operations. There is high probability that energy prices will continue to rise and most greenhouse operations have the ability to economize on fuel use.

Energy is consumed all the time, year after year. Once it is consumed, you can never get it back. Anytime
you can save energy costs, you are moving money directly to your bottom line, increasing your margins and
competitiveness. Energy-efficient systems are usually engineered for optimum conversion, distribution and
retention of heat. They can often produce better, more uniform crops, as well as being good for the environment. Even if it takes additional capital to achieve the highest level of energy saving, the long life of many energy-saving greenhouse system components make them sound investments.

Where Can I Save Energy?

• Make the most of free energy from sunlight by using light-efficient structures and high-quality glazing materials.

• Use the lowest-cost sources of energy.

• Get the maximum benefit from the energy you buy through efficient energy conversion.

• Reduce wasted or lost energy through conservation and insulation.

• Reduce energy demands by adjusting crop timing and crop production regimes.

Saving on energy costs is a multi‐tiered effort. Once you have taken the obvious steps to reduce energy waste, careful investment in energy‐saving technology must be kept in balance with capital costs, additional maintenance and payback periods. The following checklists detail a number of possible areas where you might be able to reduce energy use.

What Are Some Inexpensive Improvements With Short‐Term Payback?

☐ Insulate pipes, foundation walls and north walls

☐ Use light-reflective materials on inner greenhouse surfaces such as ground covers, north walls, posts and

☐ Close up fan housings with insulated covers

☐ Caulk and seal all air leaks

☐ Clean, service and adjust all louvers and vent systems and check to ensure they seal properly when closed.

☐ Make sure exhaust fans and pad and fan systems are in good working order

☐ Use poly liners to reduce heat loss and increase the RH factor in cold winter months

☐ Concentrate crops and shut unused greenhouses

☐ Plant later and grow warmer or plant earlier and grow cooler

☐ Check control settings for accuracy and proper temperature sensor placement (usually at the top of the
crop canopy)

☐ Service and adjust boilers and unit heaters

☐ Make sure thermal curtain systems are working properly and are in good repair

☐ Isolate propagation areas from growing zones — only heat the areas you currently need

☐ Maintain clean glazing surfaces

☐ Reduce boiler water temperature in warmer weather

☐ In colder months, use the lowest heating set points and the highest cooling set points possible

☐ Use split day/night temperatures where possible

☐ Allow climate temperatures to rise naturally late in afternoon to reduce energy demands at night

What Are The Energy Savings From Major Retrofits, Expansions And New Construction?

Consider the design of the greenhouse and all mechanical systems from the perspective of energy use, in addition to the primary functional considerations. Good greenhouse design is the art of integration. Be sure to compare the following structures and components to determine the best way to save energy without compromising your production needs:

• Structural designs

• Covering materials

• Insulation methods

• Natural versus forced ventilation

• Hot water, hot air or radiant heating systems

• HAF versus fan and poly‐tube air distribution

• Manual, semi‐automated or fully-automated controls

Each of these major component decisions has pros and cons, and they often interact with the other greenhouse components selected. Keep reevaluating your design until all components fall into place.

Work with your greenhouse and equipment suppliers until you are happy with the integration compromises. If you lack the experience and knowledge required to do this, consider contacting an experienced supplier or consultant to assist you. The decisions you make at the design stage will be with you for decades to come. Remember, whether you are building or retrofitting a greenhouse, to look at every component with regard to its energy costs and functionality.

Leave a Reply

2 comments on “Energy Conservation: Helpful Hints From NGMA

More From Finance/Operations...

November 26, 2015

2015 Metrolina Greenhouses (Huntersville, NC) Field Trials Results

See the 2015 field trials results for Metrolina Greenhouses in Huntersville, NC.

Read More
Yoshimi And Grace Shibata

November 26, 2015

American Floral Endowment Establishes Fund To Honor Legacy Of Yoshimi Shibata

Yoshimi “Shimi” Shibata, a flower grower and wholesale florist, passed away in October at the age of 100.

Read More
Vinca 'Valiant Lilac' (2015 Texas A&M University Field Trials)

November 25, 2015

2015 Texas A&M University (Overton, Texas) Field Trials Results

See the 2015 field trials results (includes photo gallery) for Texas A&M AgriLife Research and Extension Center in Overton, Texas.

Read More
Latest Stories

November 25, 2015

Everything You Need To Know About the New England GROWS…

Held In Boston December 2-4, New England GROWS includes a comprehensive conference program, a trade show, and with six special programs that teach new skills and provide opportunities to network with colleagues.

Read More

November 20, 2015

Lessons Learned From The California Drought

For those of us who live in the areas of the country that experienced harsh winters and significant rain over the past three seasons, water has become a nuisance in some cases, rather than a blessing. I can’t count the number of times I have wished to be able to send the snow or the rain to the West Coast, tied up with a big red bow. But think about how we’d feel if we didn’t have the snow and the rain, and we were experiencing the same dry conditions that the residents of California, Oregon and Washington have. With fresh water supplies dwindling in regions of the world, and the resistance of residents in states like Michigan to share water from the Great Lakes, it’s likely that the next civil or world war could be fought over our most precious resource. California’s epic drought should cause everyone to look […]

Read More
Jill Calabro

November 3, 2015

AmericanHort Names New Research And Science Programs Di…

Jill Calabro will bring strategic direction and oversight to research funding by the Horticultural Research Institute, the research affiliate of AmericanHort.

Read More
SBI’s ANY Device Application allows growers to quickly determine availability-featuer

November 2, 2015

SBI Software’s Solutions Help Simplify Logistics For G…

The company focuses on helping growers improve their existing processes with solutions for site fulfillment, replenishment, inventory management and more.

Read More
Griffin Expo15 seminar

October 28, 2015

Griffin’s Hits Record Attendance With 2015 Expos,…

Griffin Greenhouse Supplies set new attendance records with its 2015 Expos. Its 2016 Expos are set for August 31 and September 1, 2016, in West Springfield, Mass., and September 21-22, 2016, in Lancaster, Penn.

Read More

October 28, 2015

Possum Run Greenhouses Taken Over By New Owners

Justin and Lynn Marotta have placed Possum Run Greenhouse and Gifts into the hands of new owners. John and Caroline Bletner, a newly married couple, took over the Bellville, Ohio, property October 2, according to an October 24 article in the Mansfield News Journal. The Marotta family has run Possum Run Greenhouse and Gifts for 41 years. When the Marottas announced in April the greenhouse operation was for sale, they said they were looking for an energetic couple to take the business to the next level, which is what they found in the Bletners, the article reports. The Bletners have hinted they’ll be “opening to a larger market” and that the retail side will “look different.” They’ll hold a grand re-opening the week of April 22, 2016. Staff are staying on board and the Bletners are maintaining many of the suppliers. The 200-plus varieties of fuchsias Justin brought to the greenhouse […]

Read More

October 25, 2015

We Could Be Growing More Green Infrastructure Plants Th…

At her Cultivate’15 presentation in July, Shannon Currey of Hoffman Nursery challenged the horticulture industry to get involved while green infrastructure is still developing, saying that a good start is to offer more plants that fit the unique needs of this market.

Read More
Integration Key To Compliance For Specialized Crops

October 22, 2015

Integration Key To Regulation Compliance For Specializ…

Growers considering supplementing ornamental crops with cannabis will enter into a new world of governmental regulations where key business systems will be indispensable for successful crop management.

Read More
Kate Santos Operations Director Dummen Orange

October 21, 2015

Kate Santos Explains What The Sale Of Dümmen Orange To …

Over the weekend, Dümmen Orange announced that the Dümmen family has sold its majority stake in the Dutch flower breeding company Dümmen Orange to European private equity firm BC Partners. The deal is valued at more than $560 million, around 11 times its core earnings, according to a Reuters press release. The company, owned by the Dümmen family and investment firm H2 Equity partners, has locations all over the world, including farms in Central America and East Africa. This is BC Partners’ first foray into the flower business. We caught up with Kate Santos, operations director for Dümmen Orange, to find out how the company’s sale to BC Partners affects Dümmen Orange customers, if at all. Here’s what she told us: Why did the Dümmen family decide to sell their shares? Why to a private equity investment company? Similar to the reason that H2 sold its shares to BC Partners, all […]

Read More
The tradeshow at the Cannabis Business Summit & Expo — outside of the occasional 1960s vibe, perhaps — would feel familiar to most growers

October 19, 2015

Have Cannabis Growing Expertise, Seek ‘Golden Ticket’

Many horticultural growers might start cultivating cannabis tomorrow if they could secure a license, the equivalent of a “golden ticket.” But these are hard to come by, and the number and criteria vary greatly by state

Read More
Lurie Garden Millennium Park

October 16, 2015

Green Infrastructure An Opportunity To Redefine How We …

Green infrastructure is an emerging market that has important ramifications for the horticulture industry. That is, if growers, designers and other industry players take a proactive approach to grasp the opportunities that come their way.

Read More

October 5, 2015

Smart Business Sense At Tidal Creek Growers Yields Succ…

Tidal Creek Growers stays competitive by focusing on what really turns a profit. It helps the large operation successfully balance contract growing with growing for retail garden centers.

Read More

October 4, 2015

ePlantSource Adds 5 New Partner Companies

ePlantSource has announced an additional five companies that have been added to its partner distribution list. Not only do the additional partners offer more supplier options to ePlantSource customers, but the website now also provides a more diverse product list with the addition of bulbs, clematis and many new varieties. New partners added for the 2015 – 2016 season: A.D.R. Bulbs Lennon Farm Greenhouses Micandy Gardens Pacific Growers Roseville Farms “We make it a priority to respond to our customers, and we have had many requests for additional options and a more diverse product line, so we are continually evaluating suppliers that work well with our non-traditional approach to the sale of live goods,” says Gary Falkenstein, President and CEO of ePlantSource. “We feel that it is good for our company, our customers and the industry as a whole to keep looking forward and seeing how we can improve and expand how […]

Read More
Cannabis marijuana

September 8, 2015

Supplemental Lighting Benefits For Growing Cannabis In …

The cannabis industry has moved out of the basement and into the light, and with this shift in politics and regulation occurring worldwide there is a need for growers to change the way they think about lighting and energy consumption.

Read More

September 2, 2015

Delegation Is Key To A Successful Greenhouse Operation

In a packed room at Cultivate’15, speaker Bernie Erven presented key steps growers need to take to improve their delegation skills, the benefits of delegating and the dangers of not learning how to delegate. This is a skill, he says, that everyone needs to learn. “For all of you who are part of a family business, you are choosing not to do things the easy way,” Erven laughed, as he presented a list of ways to know whether or not you’re an effective delegator. The owner of Erven HR Services, LLC, Erven has been working with and observing family businesses for many years. In his presentation, he said, he didn’t share anything that he hasn’t seen first-hand. You might not be a good delegator if you: Tend to be a perfectionist Work more hours than anyone else Lack time to explain clearly and concisely Are often interrupted Enjoy what you used to […]

Read More
AmericanHort logo

August 20, 2015

David Savoia To Serve As AmericanHort’s Interim P…

Following Michael Geary’s announcement that he has resigned as president and CEO of AmericanHort, the association has announced that CFO and Senior Vice President for Operations David Savoia will serve as interim president and CEO while the board conducts a search for a new staff executive. Craig Regelbrugge, the senior vice president for advocacy and research, will support Savoia with the association’s external affairs. Geary announced August 12  that he will be leaving his position after September 30 to serve as CEO of the Society for Marketing Professional Services, an organization dedicated to creating business opportunities in the architecture, engineering and construction industries. “As some of you know, I grew up connected to the horticulture industry so this was not an easy decision for me,” Geary said in an eMail. “I have loved working with our organizations and our talented members, staff and partners. However, my choice to return full time to Washington, D.C. will allow me […]

Read More

August 18, 2015

Michael Geary Is Leaving AmericanHort

AmericanHort president and CEO Michael Geary announced last Wednesday that he will be leaving his position at the end of September to serve as CEO of the Society for Marketing Professional Services. “I am writing to share with you that on October 8 I will begin a new professional chapter as CEO of the Society for Marketing Professional Services, an organization dedicated to creating business opportunities in the architecture, engineering and construction industries,” Geary said in an email. His last day with AmericanHort will be Sept. 30, 2015. “As some of you know, I grew up connected to the horticulture industry so this was not an easy decision for me,” he said. “I have loved working with our organizations and our talented members, staff and partners. However, my choice to return full time to Washington, D.C. will allow me to be closer to my family and aging parents and to re-engage with another industry […]

Read More

August 15, 2015

Ball Horticultural Co. Buys Conard-Pyle/Star Roses And …

Ball Horticultural Co. plans to add Conard-Pyle/Star Roses and Plants to its family of breeding and distribution companies, according to a press release dated August 14, which announced the company’s recent acquisition of the famous introducer of Knock Out Roses and other perennials and woody plants to the market. Ball plans to capitalize on the expertise of its Ball Ornamentals woody ornamentals division, as well as Conard-Pyle’s market-leading position as a top rose breeder to strengthen its product line. The sale is scheduled to close by the end of September 2015. Conard-Pyle’s in-house breeding division NovaFlora, along with its intellectual properties and the distribution, production and administration facilities of its wholesale division are also part of the acquisition. NovaFlora is the driving force behind the Star Roses and Plants brand. “Conard-Pyle has been the leader in roses in its market and has been actively diversifying its offering with other woody […]

Read More
[gravityform id="35" title="false" description="false"]