Frequently Asked Questions


Where do trackers on a roof make the most sense?

  • Trackers make sense in any open spaces on rooftops because PV Booster produces up to 30% more energy from each panel.
  • In some cases where roof area limits the size of the project, PV Booster may produce less overall energy than a fixed-tilt system, however, the energy produced is cheaper to produce. Total energy produced, total percentage of energy offset, and cost to install a solar project should all be evaluated on a case-by-case basis.
  • In cases where roof area is not limited (abundant roof area), tracking systems need less of everything (modules, wiring, labor, etc.) to produce the same amount of energy as a fixed-tilt system.

How do PV Booster solar projects perform in Time of Use (TOU) rates?

  • Utilities are trending towards Time of Use peak rates that extend into afternoon and evening hours as more solar comes online. PV Booster achieves peak power sooner and sustains it longer, creating a generation curve with broader shoulders.
  • Good-to-Know: according to a recent webinar, PV Booster’s single-axis trackers deliver 30% more annual energy than a 10-degree fixed-tilt system, and 56% more energy during on-peak hours in California, where the price can go up to $0.57/kWh.

See: Rooftop Trackers Are the Solution to the Changing TOU Rates.

Is the PV Booster compatible with bifacial modules?

  • Yes, PV Booster is compatible with framed or frameless bifacial modules. In fact, PV Booster projects installed with bifacial modules deliver higher energy production than any other solution on the market due to characteristics such as tracker height and spacing, and high roofing material albedo.

Is the PV Booster compatible with energy storage systems?

  • Yes, PV Booster is compatible with energy storage systems. Both tracking and storage technologies share a common goal and complement each other in delivering the lowest cost per kWh at the hours that matter most. This is especially critical as utility providers trend towards energy storage integration and dispatchable power.

 What is the life expectancy of the PV Booster rooftop tracking system?

  • The PV Booster’s components and materials have been engineered to achieve a 30-year operating life. Rigorous testing has been performed in conditions consistent with outdoor rooftop applications including temperature cycles, humidity, dust, salt spray, water intrusion tests, and accelerated lifecycle testing.
  • In addition, all PV Booster systems are supported by a 10-year limited warranty.
  • To learn more about PV Booster’s warranty and life expectancy, see our O&M guide here.

How long is the warranty for the PV Booster rooftop tracking system?

  • The PV Booster includes a 10-year limited warranty covering part replacement.

What are the O&M requirements for PV Booster?

  • PV Booster was designed to have more space between modules and to sit higher off the roof compared to any fixed-tilt racking system. As a result, preventative maintenance such as visual inspections of the panel, cables, electrical connections, mechanical attachments, roof drains, and other roof components are fast and easy.
  • Corrective maintenance expectations may add $1.44/kW/yr as detailed in our O&M Guide, seen here.
  • The Actuator Assembly is driven by one (1) brushless low voltage DC stepper motor, which we have logged more than 10 million hours of run time in the field with zero motor failures.

How does PV Booster tracker downtime affect my solar array?

  • If a PV Booster unit stops tracking, the panel still produces fixed-tilt power and the rest of the string is still operational and tracking.
  • Tracking uptime is logged and reported.
  • The PV Booster system has a high level of availability even in the unlikely event that components break in between O&M visits.

See: Availability, Not Reliability, Covers Your Solar Assets by SepiSolar

 How does PV Booster interface with the roof?

  • PV Booster attaches to the roof using industry-accepted PV attachment methods.
  • PV Booster systems weigh less per square foot, have lower heat accumulation, and are more accessible for service and maintenance, making PV Booster highly compatible with practically any roof manufacturer warranty criteria.

How long does PV Booster take to install?

  • We’ve designed PV Booster with the installer in mind and created a product that installs intuitively. We require our installers be PV Booster certified prior to installation to ensure test conditions match real-world conditions closely. PV Booster installs in less than 15 minutes per unit. This makes it easy to estimate accurate installation costs for a PV Booster project. Keep in mind that PV Booster projects use less of everything: panels, inverters, wiring, BOS, and time to install. Our EPC and installer customers agree and can be available to answer any installation questions, and/or provide you a bid to install and commission your system for you at a fixed price.