Project Overview

Designed and coordinated the MEP systems for Willow Terrace, a net-zero energy low-income housing development. The project included 26 single-room occupancy units, 11 one-bedroom units, and a three-bedroom manager’s unit in a two-story, L-shaped building. A separate community building houses meeting space, a full-service kitchen, office space for service providers, ADA-compliant community restrooms, and laundry facilities.

The design required integration of renewable energy, cost-effective energy strategies, and close coordination with utility providers and consultants to meet net-zero energy goals while ensuring high-quality living conditions for residents.

Role & Responsibilities

🔹 Energy Calculations & Load Analysis – Conducted detailed electrical load calculations to minimize equipment costs and support an all-electric building strategy.
🔹 Photovoltaic System Integration – Designed infrastructure to support a site-wide solar PV system that powers both residential units and common areas.
🔹 Utility Coordination – Managed utility interconnection and energy distribution strategies, ensuring compliance with local codes.
🔹 Lighting & Controls – Designed high-efficiency LED lighting systems.

Key Challenges & Solutions

🔹 Cost Control in Design & Construction – Managing costs while achieving energy efficiency and compliance.
✔ Solution: Performed rigorous electrical load analysis, optimized wiring methods, and worked closely with subcontractors to minimize unnecessary infrastructure costs.
🔹 Net-Zero Energy Integration – Designing an all-electric, energy-efficient facility with sustainable energy sources.
✔ Solution: Incorporated on-site PV generation, strategic load balancing to meet net-zero energy goals.

Outcome & Impact

✅ Net-Zero Energy Ready – The facility was designed with site-wide solar PV.
✅ Affordable & Sustainable Housing – Delivered a cost-efficient, energy-optimized housing solution for low-income residents.
✅ Utility Integration – Ensured smooth coordination with power providers, supporting long-term energy efficiency and sustainability.

Let’s Talk About Your Project

Need an experienced electrical engineering partner for your next sustainable housing project? Let’s connect to discuss how NLS can support your project needs.

Low-Income, Net Zero Energy Housing

(Ukiah, CA)