solar and battery systems for luxury estates and commercial propoer

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FEATURED PROJECT

Hardman Ave, Napa Valley

A 45kW solar canopy system built for resilience and visual harmony, supporting vineyard operations and a luxury residence. Powered by 2 Tesla Powerwalls and engineered for multi-day backup, this installation integrates seamlessly into the estate’s flow and natural surroundings.

Solar Output: 45kW

Battery System: Tesla Powerwall x2

Mounting Type: Custom steel canopy structure

Backup Type: Whole-home

Control System: Tesla Gateway with remote monitoring

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About Us

Energy That Enhances the Architecture

Green Line Construction designs advanced energy systems that disappear into the design of the home. Led by Joel Ware, we specialize in solar, battery, and automation systems that are silent, secure, and tailored for the lifestyle and aesthetics of Northern California’s most distinctive properties.

900 Murray Street Completed Solar Array from Side.jpg

See Our Portfolio

My Projects

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Illustrations

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3D Art

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Products & Services

Invisible Infrastructure. Enduring Energy.

We design and install fully integrated solar, battery, and energy control systems tailored to the most discerning homes in Atherton, Woodside, Napa, and Sonoma. Our work disappears into your architecture — but delivers power, protection, and precision control, silently and without compromise.

Solar
Battery Storage
All Home Backup
Energy Controls

SOLAR

BATTERY STORAGE

CONTROLS

COMMERCIAL SOLAR

Our Vision

Commercial Solar & Strategic Energy Design
With the transition from NEM 2.0 to NEM 3.0, PG&E and other California utilities have reshaped the economics of solar—especially for commercial and multi-tenant properties. Under the new structure, net metering credits are dramatically reduced, and time-of-use rates make energy storage and intelligent load control essential for ROI.

At Green Line Construction, we design commercial solar systems with precision, engineering every installation to maximize onsite energy use, minimize export penalties, and optimize battery storage through smart automation. Whether you're managing a multi-tenant building, a commercial campus, or developing a community microgrid, our integrated approach combines solar, batteries, and energy controls to deliver measurable financial performance and long-term resilience.

NEM 3.0 Reality Check:

⚠️ Lower export compensation
⏰ Higher time-of-use volatility
💡 Smart energy management is no longer optional—it’s ROI-critical

For property owners, developers, and institutional clients, this is no longer about just going solar—it’s about designing a system that works within the new rules. That means precise modeling, strategic load shifting, and dynamic control systems that match usage patterns in real time. We provide all of it—tailored to the architecture, operations, and objectives of each project.