Low Height Drilling Technology
Geotility has been installing GeoExchange systems for over 20 years. We also have the most experience in North America in installing these systems in urban environments. To date, Geotility has installed well over 30 systems in dense, downtown buildings. Geotility was the first to recognize the need to offer an alternative installation method for specific projects.
During the development phase of the Hotel Georgia project, it was quickly recognized that installing the GeoExchange system in the typical fashion - beneath the building, prior to construction - was not a viable option. Being on the critical path and increasing the construction schedule on such a capital intensive project required some creative solutions. As a result of this, Geotility created the GeoMole 5.1: the world's first low height hybrid GeoExchange drilling rig. This rig is capable of drilling within the footprint of a standard height parking structure, and has the ability to further reduce height where necessary. This rig can operate using on-site electrical power - thereby reducing the need for exhaust ventilation - or it can be run like a conventional rig on diesel.
Geotility completed its first project with the GeoMole 5.1 in 2009 and have since finished numerous other projects using this industry-first technology. Below are several feature projects that demonstrate the versatility of the Geotility team.
The Hotel Georgia Project is a hallmark building in downtown Vancouver. Drilling occurred 100 feet below grade in the 8th level of the parkade for the new Hotel Georgia tower featuring our new "Geo Mole 5.1" drilling platform. Boreholes were drilled to 500 ft depths using an air rotary process. This project remains the first and only GeoExchange system in Vancouver installed after construction of the building was under way.
This project demonstrates the benefits of using a hybrid drilling rig so that the construction schedule is not delayed, saving the developer a considerable amount of money and providing an easier transition for the installation of geothermal technology in medium and high rise towers
The Hudson is a rehabilitation of the historic Hudson's Bay building in downtown Victoria. The building was converted to modern, sophisticated residences featuring a GeoExchange heating and cooling system. Geotility was proudly selected as the design / build contractor for this exciting project. The installation of the ground heat exchanger was carried out within the building footprint using Geotiltiy's innovative Low Height Drilling Technology.
The Langley Street Building
The Langley Street Historic building in downtown Victoria recently underwent a complete restoration. New retail space was created on the main floor, while the upper floors are now home to beautifully restored office spaces. As the building owners were keenly interested in installing a green, energy efficient system, Geotility was brought in to help develop a solution. Through brainstorming with the mechanical consultant Avalon Mechanical and the Architect Chang Holovsky Architects, it was decided to use the GeoMole 5.1 system to install the GeoExchange field beneath the existing structure. Another criteria for this project, was the rig had to pass through an 8 ft wide doorway. Boreholes were drilled within the building footprint allowing the system to be completely obscured beneath the floor. The Langley Street Building is another example of Geotility's ability to provide project specific solutions.
The GeoMole 5.1 by Geotility