Leschi Seattle Solar & Tesla Powerwall 3 Project
Pinnacle Roofing Professionals, LLC recently completed this advanced Seattle solar and energy storage project in the scenic Leschi neighborhood. The installation pairs a high-efficiency Silfab 430W solar array with two Tesla Powerwall 3 battery units, a Tesla Gateway 3, and Tesla MCI’s, giving the homeowner clean, reliable power around the clock and dependable backup during outages.
Leschi’s mix of contemporary architecture, lake views, and mature tree coverage makes thoughtful system design essential. Our team engineered this project to maximize roof-mounted solar production while preserving the home’s modern aesthetic and protecting its white flat-membrane roofing with a low-profile, ballasted racking system.
Project Overview
Location: Leschi neighborhood, Seattle, WA
Solar Panels: Silfab 430W high-efficiency black-on-black modules
Energy Storage: Two Tesla Powerwall 3 units
Energy Management: Tesla Gateway 3 and Tesla MCI’s
Electrical Equipment: SPAN smart electrical panel with Tesla Wall Connector EV charging
Project Type: Residential rooftop solar + whole-home battery backup
Contractor: Pinnacle Roofing Professionals, LLC — licensed roofing and electrical contractor
Silfab 430W Solar Panels
The home’s rooftop solar array features Silfab 430W panels, a preferred choice for Pacific Northwest homeowners who need reliable production in partly cloudy and variable weather. The black-on-black design blends cleanly with the home’s contemporary lines, while the 430W efficiency rating helps generate more power per panel than standard residential modules.
Panels were arranged across multiple flat roof planes, carefully positioned around skylights, vents, and curved parapet edges to preserve both waterproofing integrity and curb appeal. The ballasted racking minimizes roof penetrations while meeting wind and seismic requirements for the Seattle area.
Tesla Powerwall 3 Energy Storage
Two Tesla Powerwall 3 units store excess solar production for use after sunset and provide seamless backup power during grid outages. Compared to previous generations, Powerwall 3 delivers a higher continuous power output and a streamlined, all-in-one inverter-battery design that integrates cleanly with the home’s energy storage strategy.
With whole-home backup, the homeowner can keep essential circuits, lighting, HVAC, and the Tesla Wall Connector EV charger running even when the broader grid goes down. Excess daytime solar is captured rather than sent back to the utility at lower compensation rates, improving long-term energy economics.
Tesla Gateway 3 and MCI’s
The system is coordinated by a Tesla Gateway 3, which monitors solar production, battery state of charge, and home energy use in real time. It manages the transition between grid power, solar power, and battery backup seamlessly, so the homeowner rarely notices when the utility goes down. Tesla MCI’s complete the energy control package, enabling precise monitoring and switching across the home’s critical loads.
Electrical Integration and Backup Equipment
Integrated Roofing and Solar by One Contractor
One of the biggest advantages of working with Pinnacle Roofing Professionals is that both the roofing and solar scopes are handled by a single licensed contractor. Our dual roofing and electrical licensing eliminates the coordination gaps that often lead to leaks, warranty disputes, or delayed repairs.
Every project we complete is backed by a comprehensive umbrella warranty and installed to the highest standards of quality and safety. For homeowners in Seattle neighborhoods like Leschi, that means a solar system that works with the roof—not against it—for decades.
Start Your Seattle Solar and Storage Project
Interested in adding solar panels, a Tesla Powerwall 3 battery, or both to your Seattle-area home? Contact Pinnacle Roofing Professionals today for a free consultation and custom estimate. Call (206) 919-3538 to speak with our team.