Tesla Powerwall

We are a Tesla Powerwall Certified Installer

Our Maine-based team is recognized by Tesla for exceptional quality and service. As a Tesla Powerwall Certified Installer, we offer expertise and top-tier installations backed by unrivaled product knowledge and customer care.

Why would I want grid-tied solar with a Tesla Powerwall?

Grid-tied solar electric systems don’t need batteries, but during an outage, those same grid-tied systems won’t provide you any power. A Tesla Powerwall gives you rechargeable backup power, so you can keep the lights on when the grid is down.

Why choose the Tesla Powerwall

The Powerwall is one of the most widely recognized battery systems available. It offers strong power output, an intuitive app, and excellent value per kilowatt-hour—making it a great choice for homeowners who want dependable backup and smooth integration with solar.

About the Tesla Powerwall

The Tesla Powerwall can handle larger loads than most other battery storage options on the market. That means you can keep more of your home powered. It’s designed for self-consumption, Time-of-Use control, and short-term backup power. The Tesla Powerwall has a user-friendly customer interface and an excellent dollar-per-kWh value.

Performance Specifications:

• Usable Capacity: 13.5 kWh
• Efficiency: 89% Peak Round-trip
• Power Output: 10Kw Continuous
• Scalability: Up to four Powerwall 3’s
• Warranty: 10 years, minimum (70% of useable capacity)

Key features of the Tesla Powerwall

• Seamless backup: Automatically powers your home during an outage.
• Strong load support: Capable of running essential appliances, heating systems, and electronics.
• Included Load Control: Non-backed-up loads panel to fully exclude high-draw circuits from battery backup.
• User-friendly app: Monitor energy production, storage, and usage in real time.
• Smart energy modes: Includes self-consumption and Time-of-Use functionality.
• Quiet operation: Near-silent and instant transition to backup power.
• All-in-one design: Integrated inverter and compact enclosure for flexible installation.

How does a Tesla Powerwall Battery work?

The Tesla Powerwall connects to your home’s electrical system to power your home during power outages. When paired with a solar array, the Powerwall can recharge itself during an extended outage.

The Powerwall can also be used in “Self-Consumption” mode, storing power from your solar array during the day and using battery power at night—never drawing energy from the grid. Under Maine’s current electric rate structure there is no financial benefit to using a Powerwall in Self Consumption Mode

Can I install a Tesla Powerwall if I already have solar?

In most cases, yes. A Powerwall can be added to most existing home solar systems. Your inverter and layout will determine the size and design of the right battery for your equipment. Contact us, and we’ll review your setup to figure out what’s possible.

Can I install a Powerwall if I don’t have solar?

You can, but it may not be worth it in Maine. Unlike areas with high variation in on-peak and off-peak rates (like California), it’s not as financially rewarding here.
Without solar panels, the Powerwall won’t recharge during an extended outage—and it can’t charge from a generator. The best solution is to pair battery backup with solar.

Can I earn money with my Tesla Powerwall?

Tesla Powerwall customers in Maine may be eligible for the Efficiency Maine Small Battery Program, which allows homeowners to earn incentive payments by sharing a portion of their battery’s stored energy during periods of high electricity demand.

Eligible homeowners can currently earn up to approximately $576 per Powerwall per year through Tesla’s Virtual Power Plant (VPP) program. Events typically occur on weekday evenings, may last up to three hours, and participation is managed automatically through the Tesla app.

One advantage of Tesla’s program is the ability to adjust your backup reserve settings. This allows you to determine how much battery capacity remains available for outages while still participating in the program.

Enrollment is completed through the Tesla app after your system is installed and interconnected.
Learn more about the program and eligibility requirements ›

Who can install Tesla Powerwalls?

Only a Certified Tesla Powerwall Installer, as there are strict quality, permitting, and inspection requirements.

Are there Tesla Powerwall alternatives?

Yes. Our team continuously evaluates the best technology to offer the most reliable and cost-effective energy storage solutions. We offer several alternative battery options tailored to your needs, including the FranklinWH aPower 2, Enphase Battery, SolarEdge Home Battery System. Our consultants will help you explore the best option for your setup.

Install with confidence

Our solar consultants and electricians handle everything from designing your battery backup system to permitting, installation, and customer support.

Helpful information for your Solar + Battery Backup journey

We’re here to answer questions, offer clear information, and help you make the right choice—without pressure to commit. Please don’t hesitate to contact our team directly to set up a free site assessment or if more questions arise.