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Efficient Yields Tri-County: Greenhouse Optimization - Aligning Your Systems with Your Surroundings

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California |  Cannabis |  Crop |  Cultivation Approach |  Efficient Yields Workshops |  Greenhouse |  Region |  Controls |  Topic Area |  Educational Content |  3C-REN
Kyle Clark |  Kyle Edmiston |  Josh Holleb |  Marc Paynter |  Gretchen Schimelpfenig
2 hours
Audio and Video
Original Program Date:
Dec 02, 2021
Never expires.


Greenhouse controls can be more complicated because they have to contend with more extreme variations in climatic conditions and solar radiation that are harder to predict. Learn best practices for lighting and environmental controls in greenhouses. Daily and seasonal variation of the Sun can quickly influence facility heat gain, plant photosynthetic rate, and transpiration rate at varying rates across the canopy in greenhouses. Understand how to compete and comply with upcoming code changes. Save energy by automating vents and light deprivation systems, supplemental lighting systems, and cooling systems in greenhouses.


Topical areas include:

  • Best Practices for Advanced Controls & Automation in Cultivation: Greenhouse

  • Understanding California Title 24, Part 6, Energy Code

  • Building Envelope & Shading Devices

  • Greenhouse Lighting Controls & Automation Best Practices

  • Greenhouse Environmental Controls Best Practices: Avoiding Microclimates for Plant Health


Target audience:

  • Cultivators

  • Operations & Facility Staff

  • Design & Construction Partners

  • Property Owners

  • Utility & Government Representatives



Kyle Clark's Profile

Kyle Clark Related seminars and products

Vice President, Business Development


Kyle Edmiston's Profile

Kyle Edmiston Related seminars and products

Business Development Manager

Ludvig Svensson

Kyle Edmiston is a Business Development Manager at Ludvig Svensson’s American subsidiary. Kyle joined the Svensson team in the Fall of 2019, and was previously focused on our West Coast customers, before recently joining the ClimaFlow team within Svensson’s expansive offerings. Kyle holds a bachelor’s degree from the University of South Carolina and has been focused on new business development professionally for the past 14 years.

Josh Holleb's Profile

Josh Holleb Related seminars and products

Ceres Greenhouse Solutions

Since starting at Ceres 7 years ago Josh has created the Cannabis division, bringing more than a decade of experience in both construction, cultivation, and dispensary management. Josh approaches his job with an interdisciplinary understanding of systems, architectural design, and problem solving. His goal is to create a whole-systems approach to both greenhouse design and environment controls, resulting in the most efficient systems and environmental controls, resulting in the most efficient systems and highest quality product.

He has been featured in Marijuana Venture Magazine as one of the “40 under 40” rising stars in the Cannabis Industry in 2018.

Gretchen Schimelpfenig's Profile

Gretchen Schimelpfenig Related seminars and products

former RII Technical Director

Resource Innovation Institute (Formerly)

Gretchen is a professional engineer who has spent the past five years optimizing controlled environment agriculture operations for resource efficiency and productivity. Schimelpfenig earned a B.S. in Architectural Engineering from the University of Wyoming and an M.S. in Civil Engineering, Sustainable Design & Construction with a concentration in energy from Stanford University. Her diverse professional experience includes time spent commissioning commercial buildings, designing utility energy efficiency programs, and helping businesses like the University of Vermont and the City of Burlington benchmark their resource consumption. She specializes in analyzing the operation of building systems for cultivation facilities and helps the members of RII’s Utility Working Group reach cultivators with their financial incentives and technical assistance.

She has consulted across the U.S. on efficiency program design for controlled environment agriculture (CEA), and has published papers on benchmarking and high-performance technologies with ACEEE, ASABE, and USGBC. Gretchen has presented at conferences for industry organizations including ACEEE, AESP, ASHRAE, EUCI, MEEA, and IES.

She works directly with the DesignLights Consortium to increase the adoption of third-party certification of horticultural building systems. Gretchen also represents RII on several industry committees developing standards for CEA including the ASABE PAFS-30 (Plant Systems Group), ES-300 (Electrical Utilization & Energy Group), and ES-310 (Agricultural Lighting Group), ASHRAE Technical Committee 2.2 (Plant and Animal Environments), ASTM Committee D37 on Cannabis, IES Horticultural Lighting Subcommittee, and Task Group 1 of the UL 3600 Scorecard for Measuring and Reporting Circular Economy Aspects of Products, Sites and Organizations.

Gretchen raises houseplants and cats in her Vermont farmhouse and enjoys foraging for ramps, fiddleheads, and mushrooms when she isn’t skiing, biking, or knitting.