For over 18 years Bruce and Nancy Stedman have worked their land year-round. They are certified organic, in-ground growers that sell via Whole Foods, CSAs and direct to Portland area restaurants.
Little River Farm wanted to expand production while reducing significant energy bills associated with heating and lighting costs. Over the past three years, Bruce and Nancy lost several greenhouses to the considerable weight of snow that accumulates during Maine winters.
They commissioned ArchSolar to build a structurally sound greenhouse that would reduce their energy inputs while raising crop outputs. They wanted a solution that was sustainable both environmentally and economically, and would allow them to switch to renewable energy as well as generate their own electricity.
Lightweight and strong, these arches allow for a wide span to be achieved in a DIY manner and without heavy equipment. The arches enable the structure to withstand winds of 105mph and snow loads of 80 lbs/s.f.
This feature allows for important light and thermal heating to come into the structure. Rigid by nature it can withstand the elements and does not need replacing every few years like dual poly. It has over two times the insulation of glass and is less conductive, resulting in less heat loss and less condensation inside the structure.
Our greenhouses maximize natural light as well as provide supplemental LED lighting generated by MiasoléPV panels that cover portions of the structure.
ROOT ZONE HEATING
This feature shortens the plant production cycle and reduces the ambient temperature required in the greenhouse.
INTEGRATED CLIMATE CONTROL
These monitor and collect data on soil temperatures, relative humidity, carbon dioxide and PAR light (both accumulated Daily Light Integral and Instantaneous Spectrum Specific Light). The sensors can also be used to remotely control levels throughout the building.