NEXUS Open House on National Bioenergy Day

Event date: 
Wednesday, October 21, 2015 - 1:00pm - 4:00pm

The NEXUS: Biomass Greenhouse Heating Systems for Season Extension

Local farmers and the general public are invited to learn about our research on a biomass greenhouse heating system. This event is a part of the third annual National Bioenergy Day and will provide the public site tours and the opportunity to learn about biomass and renewable energy. This special event is designed to introduce the on-going research on biomass and bioenergy from Appalachian State University (ASU) to the local community.

Event Date: Wednesday, Oct. 21, 2015

Schedule: Open house from 1pm - 4pm 

Site tours at 1pm, 2pm, and 3pm (maximum of 12 people per tour)     

Fee: FREE, but please register with the link below due to limited parking space.

Pre-registration: Due to limited parking space, please register in advance.  This will also help us plan for refreshments and handouts. Click here to register!

Directions: The site is located next to the Watauga County Animal Control Dept. (672 Landfill Rd, Boone, NC 28607). Turn right (from 421 West)/left (from 421 East) on to Landfill Rd. Go straight and you will pass Watauga County Sanitation on your right. Stay straight and it will turn into a gravel road, continue driving on the gravel road about 100ft. The site is at the end of the road, National Bioenergy signs will also be up to guide you.

Click here for Google Map

Contact: Janet Miller,
                 Hei-Young Kim,


Faculty and students from the departments of Sustainable Technology & the Built Environment and Applied Design at ASU have built a 20 ft. by 30 ft. greenhouse including a small scale pyrolysis system, solar thermal heating system, compost heating system, an anaerobic digestion (AD) system, and aquaponics system using several grants including EPA funding and NCDA. This ready-to-test site, called “Nexus,” is located at the Watauga County Landfill, in Boone, NC. Faculty and students at ASU are experimenting with a synergistic approach to renewable energy and sustainable living.

Our biomass greenhouse heating system utilizes all kinds of the feedstock typically available on a small farm, which can be an affordable greenhouse-heating energy source for those seeking lower energy costs. AD and compost generate energy from readily digestible materials and the pyrolysis system handles relatively indigestible biomass, such as wood scrap. Not only is heat energy produced but also high quality soil amendments, e.g., compost, digester slurry, and bio-char, which help increase productivity.

In other words, the Nexus is the sustainable closed-loop production system that uses agricultural wastes to generate energy for greenhouse and soil. The proposed low-cost biomass greenhouse heating systems will help resource-limited farmers to extend their growing season, benefiting: community by enhancing access to fresh local produce, farmers by increasing the income in cold season, and the local environment by saving fossil-fuel energy and reducing greenhouse gas emissions normally associated with greenhouse heating and transportation of non-local produce.

Download this tri-fold brochure for more information.

Nexusnexus text Nexus greenhouse
Appalachian Energy Center
Contact name: 
Janet Miller
Contact email:
Contact telephone: 
FREE, registration required

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