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Kitsap SEED Green Story

diagram of building cross section displaying features listed below

  1. Porous concrete to maximize site stormwater infiltration
  2. Optimized building orientation for active and passive solar capture
  3. 143 kW photovoltaic panel array
  4. Solar thermal collectors (22 kW energy contribution)
  5. Masonry shear cores provide daylighting, high thermal mass and stack-aided natural cooling (fan assist)
  6. Structural insulated panel system
  7. Modular structural steel frame to enhance building flexibility for changing user needs
  8. Operable windows provide natural cooling and daylight harvesting
  9. High recycled content, low VOC and regionally produced materials
  10. High efficiency L.E.D. and fluorescent interior and exterior lighting
  11. High fly ash content structural concrete
  12. Reclamation of former Naval dumping facility site
  13. Radiant in-floor heating and free cooling
  14. Social gathering nodes encourage interaction and creative exchange of ideas
  15. Geothermal heat exchangers
  16. Expressed building systems to enhance user awareness and connection to resource use
  17. FSC certified regional wood products
  18. Bioretention area collects excess roof stormwater to achieve 65/10/0 low impact site stormwater strategy
  19. Site stormwater collection and re-use
  20. Heat recovery ventilation

Sustainable Site

The Kitsap SEED Project is a Port of Bremerton Initiative seeking to integrate Sustainable Energy and Economic Development (SEED) within a world-class campus for clean energy technology companies. The project goal is to showcase the highest level of sustainable development and business operating practices.

The site for Kitsap SEED is a former naval dumping ground. It was chosen specifically to utilize a highly disturbed site area instead of adjacent second and third growth forest. The project site design incorporates aggressive measures to re-vegetate the site with native forest and meadow species and to increase bioretention, in order for all stormwater to be captured and infiltrated on site.

The project site strategies focus on low-impact development (LID) and aggressive stormwater management. The concept follows the 65/10/0 strategy in which 65 percent of the site is left undisturbed, 10 percent is allowable impervious surface and zero percent is the net increase in runoff. To achieve this strategy, the project utilizes porous paving, a vegetated roof system and strategic planting and soil layers to promote bioretention.

Located across from the Bremerton Airport, the site is efficiently close to existing local industries and resources. The project is intended as a catalyst for economic growth in the clean technology sector and to serve as a model for sustainable development.

In addition to industry integration, the site location enjoys proximity to several local colleges and university satellite campuses, which will allow for collaboration, research and product development in concert with higher education research. Students training for green collar jobs will potentially offer a needed workforce for developing companies at the Kitsap SEED campus.

Toward Zero Energy

Kitsap SEED maintains a LEED® Platinum certification target, with energy-use reduction and on-site energy production as two primary goals. The buildings were conceived as a ship or machine where all systems are exposed to promote user awareness and understanding of energy use and conveyance. Even the mechanical room has transparent glazing to highlight the heat pumps and other equipment within. This strategy allows for typically invisible sustainable technology to serve as a teaching tool for users and visitors.

The project contains three sources of renewable energy:

  1. Geo-thermal heat pumps extract heat and cool from the earth to warm or chill the radiant concrete slabs.
  2. Rooftop solar-thermal collectors harness solar energy to heat water and are integrated with the geo-thermal system.
  3. Rooftop and ground-mounted photovoltaic cells convert solar energy directly into electricity.

In addition to producing energy on-site, the design reduces the demand for energy with high thermal mass and passive cooling. Operable windows, ceiling fans and lighting controls allow users to be in control of their environment. CMU “chimneys” provide structural bracing, passive thermal mass, daylight penetration and allow for natural stack-effect cooling to condition interior spaces.

Local and Sustainable Materials

Kitsap SEED will utilize local and regional materials to the greatest extent possible.

Siding and interior finishes will be FSC locally harvested cedar and fir. Structural insulated panels (SIPs), locally manufactured with FSC wood, will provide a super-insulated building envelope to minimize energy use and secondary framing material needed for the project. In addition to high-recycled content in most materials, the structural concrete will incorporate a high-flyash content to replace Portland cement content and reduce overall embodied energy.

The finished project will engage local industries and suppliers as part of a long-term strategy to conserve energy and promote local economy and industry. The campus also will provide an armature for the emerging technology that develops within it, serving as a living laboratory to incorporate new products into its operations and to demonstrate and test clean technology development.

Sustainable Water

In addition to the aggressive site stormwater strategies, the project will minimize the amount of potable water use through low-flow plumbing fixtures, stormwater capture and reuse for greywater and blackwater treatment and reuse through a membrane reactor system. Drought tolerant native plantings will require a minimal amount of irrigation water for establishment only.

IEQ and Comfort

While the performance and demonstration of building systems is essential to the success of the project, the comfort and health of its occupants is equally important. To maximize user comfort, the project incorporates a high degree of controllability for interior spaces for lighting, ventilation and views, which in turn fosters a strong sense of connectedness to the exterior environment.

Material and finish selections achieve LEED criteria for minimizing or eliminating VOC and urea-formaldehyde content to ensure good indoor air quality for users. The project also pays great attention to the balance of secure, acoustically isolated working spaces with open gathering opportunities and access to exterior landscape areas. This balance of intellectual property security and open collaboration allows user choice and comfort and will enable Kitsap SEED to be a sanctuary for research, development and collaboration.

Collective Wisdom and Feedback

Kitsap SEED is the result of integrated collaboration between architects, landscape architects, interior designers, consulting engineers, ecologists and clean tech incubator experts. This design process is iterative and has been tested at each phase to ensure ongoing validity for the chosen strategies.

Social Equity

The project, offering a “beacon of sustainability” to the larger community, will serve as an economic and environmental catalyst in the Kitsap region. The resources of the facility are intended to be shared with the larger business and academic community. The facility itself strives to be a tool for demonstrating sustainable design strategies and clean technology.

Regional/Community Design

A primary contribution of this facility will be its impact on fledgling companies. Motivated and inspired by the supportive environment of the Kitsap SEED, companies will be spurred to make many advances and developments. The project will have long-lasting impacts and engagement with the larger community and region though helping to bridge the traditional gaps for these clean tech startup organizations and fostering collaboration with higher education institutions. As the global marketplace is demanding increased research in these areas, the Kitsap SEED project will place Washington State at the forefront of the effort.