Government & Education

Five years since the adoption of the County of San Diego’s groundbreaking Zero Net Energy (ZNE) Portfolio Plan, the County is renewing the plan with a new emphasis on carbon reduction. Subject to funding, this ambitious new Zero Carbon Portfolio Plan aims to achieve a 90% reduction in operational carbon across the County’s 1,000+ building portfolio by 2030, which will be achieved through a combination of energy efficiency, retro-commissioning, monitoring-based commissioning, onsite solar, community choice power purchasing, and building electrification projects.

Presidio Tunnel Tops revitalizes the Presidio of San Francisco and creates a must-see, national park destination for San Francisco’s diverse community and visitors from around the globe. Targeting LEED Gold and ReScape certifications, the 14-acre project showcases best practices for sustainable buildings and landscapes while creating a place that evokes the Presidio’s natural and cultural history and welcomes all, serving as a new high-performance community hub.

The project team was faced with navigating the very technical, controlled, and energy-intensive conditions required of an archive, including a narrow range of temperature, humidity, and pollutant conditions.