A complete energy system for the Hartman residence — designed to drive energy independence, champion environmental sustainability, and build financial resilience. All under one roof, on one contract, controlled from one app.
Three principles guide every system we design, and every recommendation in this proposal. They’re also why we do this all under one roof — one company, one warranty, one phone number.
Most “energy upgrades” just make you 20% more efficient at depending on the grid. We design systems that disconnect you from utility risk entirely — through inflation cycles, blackouts, rate hikes, and outages. With a properly designed system, your home stays powered when others don’t.
Solar generation, LFP storage, low-GWP refrigerants, CO₂ heat pumps for water heating — every component is selected to cut your carbon footprint, not just your power bill. Whether you’re hedging inflation or chasing complete carbon neutrality, the design respects both.
At 6.7% utility inflation, your bill doubles every 11 years. Owning your generation isn’t environmentalism — it’s hedging. The system pays for itself in years; the savings compound for decades. Plus: one contract, one warranty, one team to call when something needs service.
Items in green are part of this proposal. Items in gray are available as future phases — most homes start with solar + storage and electrify HVAC and EV in year two or three.
These are modeled outputs from your monthly usage data, sized for full energy independence. PG&E E-1 rate, 6.7% annual inflation assumed.
We don't sell what we wouldn't install in our own homes. Here's exactly what's going on yours, and why.
Maxeon panels degrade just 0.25% per year — they retain 88% of their original output at year 40, longer than the warranty on most competitors. Paired with Sol-Ark’s USA-built hybrid inverter, your system can island from the grid in milliseconds during an outage and keep running without any user intervention. A bonus most homeowners don’t know about: this combination can effectively turn a 200-amp service into a 400-amp service through solar + battery, eliminating the cost and red tape of a traditional utility upgrade.
Renon's Extreme LV uses lithium iron phosphate (LFP) cells — the same chemistry trusted in critical infrastructure for its safety record and cycle life. The modular 5 kWh format means we size your storage exactly to your independence target without paying for capacity you won’t use. Coupled to the Sol-Ark hybrid inverter listed above, the system is grid-forming: it islands during outages within milliseconds and can re-energize your home from a dead grid without external generation.
VRF zoning lets you heat one part of the house and cool another simultaneously — and only run the equipment as hard as each zone actually needs. R-32 refrigerant is one-third the global warming potential of R-410A. Aidoo Pro Wi-Fi gives every zone full app control.
SANCO2 uses CO2 (R-744) — a natural refrigerant with a global warming potential of 1, vs ~2,000 for typical R-410A. It heats domestic hot water more efficiently than gas at almost any climate Green Air services, and pairs cleanly with the rest of your electrified system.
Range reflects normal site-specific design variation discovered during walkthrough. Final number is locked in your contract before any work begins.
Range reflects normal site-specific design variation discovered during walkthrough. Final number is locked in your contract before any work begins. PPA financing available — adds ~10% margin to the gross amount.
Most residential projects take 8–14 weeks. Larger or roofing-included scopes run 14–20.
Detailed engineering drawings, structural review, electrical load calcs, equipment specifications.
City and utility submittals. Equipment ordering. We handle the back-and-forth so you don't have to.
Roof, electrical, HVAC, and battery in coordinated phases. Daily site cleanup. Floor + furniture protection.
Inspections, utility interconnection, system startup, full walkthrough, app onboarding.
Manufacturers provide equipment and component warranties (Maxeon 40-yr, Sol-Ark 12-yr, Renon 10-yr, Samsung 10-yr parts/comp).
Green Air provides 100% labor warranty for 10 years on all installed equipment for manufacturer-approved claims.
Daily clean-up. Protective covers for floors, furniture, and finished surfaces. Unrequested attention to detail. We treat your home like our own.
Honest answers to the questions that come up on every walkthrough. For more, see the full Green Air presentation.
Reply to your proposal email or sign below. We’ll schedule your site walkthrough within 5 business days and lock the final number into your contract. Flexible financing available — we’ll walk you through the options.
Approve & schedule walkthrough Read the full Green Air presentation ↗