SolarEdge unveils next-gen optimizer, commercial inverters, residential solution at Intersolar Europe

SolarEdge Technologies is presenting its next-generation power optimizer, new large-capacity commercial inverters, and complete residential solution at Intersolar Europe.

On the cutting-edge of PV safety and module-level power electronics, SolarEdge is unveiling its new S-Series power optimizer, which is an Intersolar Award Finalist in the Photovoltaics category. The S-Series power optimizer has up to 40% higher power density, is 38% smaller, and introduces a new innovative safety feature that extends safety to the connector level. The new safety feature is designed to detect heat abnormalities and initiate shutdown before an arc occurs in order to prevent potential fires. The S-Series power optimizer is expected to be available in 2018.

SolarEdge S-Series Power Optimizer

Based on SolarEdge’s track record of optimizing commercial-scale PV systems, SolarEdge is extending its commercial offering with the launch of larger-capacity, three-phase inverters up to 100 kW. The new inverters enable reduced installation time and cost, while also providing smart energy management control.

Coordinating PV, storage, and home energy, the SolarEdge residential solution manages and monitors solar energy generation, electricity consumption, energy storage, and device control. The complete solution enables homeowners to increase self-consumption and energy independence. SolarEdge will show its portfolio of inverters for residential installations including the award-winning, single-phase HD-Wave inverter, the new three-phase E-Series inverter which is smaller, lighter, quieter, and more efficient than the previous generation, and a new compact residential solution for 4-8 panels.

SolarEdge New Commercial Inverter

“Dedicated to making solar systems smarter, SolarEdge continues to lead the industry in developing innovative technologies that help to make PV more economic around the world,” stated Lior Handelsman, SolarEdge’s VP of Marketing and Product Strategy.

Listed as a finalist for the EES (Electrical Energy Storage) Award, SolarEdge’s StorEdge inverter is one of the only solutions currently available on the market that combines the management of PV, storage for both on-grid and backup power, and home energy management into a single inverter. The StorEdge inverter with backup power is already available in select markets.

Q&A with SolarEdge about new StorEdge storage system

 

— Solar Builder magazine

Boviet Solar partners with SolarEdge on 60-cell smart solar module

Boviet Logo

Boviet Solar Technology Co., a global leader in the manufacture of high-quality photovoltaic technology, has finalized a partnership with SolarEdge Technologies, Inc. a global leader in PV inverters, power optimizers, and module-level monitoring services, to include SolarEdge solar power inverters with Boviet’s 60-cell mono smart solar modules. As a result of this agreement, Boviet customers will be able to get a self-contained solar module, ready for installation with the power inverter already installed.

Boviet is one of only three manufacturers in the world to have such an inverter integration agreement with SolarEdge. It’s common industry practice for solar installers to source their solar modules from one vendor and match solar power inverters supplied by another. By bundling the power inverter with Boviet’s High Efficiency solar module, installers only have to work with a single supplier, which results in savings in both product sourcing and installation. In addition, purchasing solar modules with the solar inverters pre-installed ensures turnkey functionality and shortens installation time.

PERC Up: Boviet Solar tells us how it will provide high efficiency modules at a low cost

“This new arrangement with SolarEdge gives our customers a single source for both solar panels and inverters, which means less equipment to stock and transport to the job site,” said John Bereckis, President of the Boviet Solar USA Module Division. “It also allows Boviet to partner with one of the market’s leading solar power inverter manufacturers, in keeping with our commitment to technological excellence and superior solar performance. This deal is a winner for everyone involved and points the way to a new trend that will make installing residential photovoltaic systems easier than ever.”

Boviet’s High Efficiency monocrystalline, solar module delivers up to 25 percent more solar power from the system, and comes with free 24-hour per module monitoring. These are high quality, highly reliable modules able to withstand up to 2,400 Pa of wind loading and 5,400 Pa of snow loading, and come with a 12-year warranty as well as a 25-year linear output warranty.

— Solar Builder magazine

Ask an Expert: Inverter manufacturers give us their best troubleshooting advice

Christopher Barrett

Christopher Barrett

Wi-Fi Can Cause Communication Issues

Christopher Barrett, director of technical services, APsystems

We often see issues our installers are facing related to communication, often due to misplacement of the gateway or an unreliable internet connection. Following best practices recommended by the manufacturer will help installers reduce repeat site visits to fix communication problems. Some of these best practices include installing a gateway in the correct location, which is typically a direct connection to the service panel in which the PV array home-run is landed (often a dedicated PV sub-panel). We also recommend using a wired ethernet connection whenever possible to better ensure reliable communication and minimize returns to the jobsite.

Ryan LeBlanc

Ryan LeBlanc

Double-check those Airways, String Lengths

Ryan LeBlanc, senior applications engineer, SMA America

  1. Over-voltage, strings that are too long, are the fastest way to kill an electrical device.
  2. Blocking airways, installing inverters too close to walls or other inverters, and not inspecting inverters regularly for a blocked air intake are both common. This results in less production, but it’s hard to say if it kills them earlier.
Frank O’Young

Frank O’Young

Pro Tip: Try Different Cable Colors

Frank O’Young, associate VP, Darfon

Our tech team sees that often the polarities of the DC lines from a PV module or string are incorrectly connected to the inverter due to the fact that same color cables (mostly black) are used for the + and – of the module or string. This can be avoided by using different cable colors for different polarities or checking the polarities before inverter connection. Our tech team also sees of that the L1 and L2 lines of the AC circuit are incorrectly wired when tying the inverter to the grid. Caution should be taken when connecting the L1 and L2 and instructions from the inverter manual should be followed.

RELATED: 2017 Solar Inverter Buyer’s Guide 

Mark Cerasuolo

Mark Cerasuolo

Storage is Complex – Get Trained to do it Right

Mark Cerasuolo, director of training and marketing, OutBack Power

Since our products and systems typically either include or interact with batteries, some training beyond what most grid-tie installers have is really necessary to ensure a safe and reliable installation. Even then, we really encourage installers to use pre-wired systems to ensure that the system is complete and wired correctly.

Ed Heacox

Ed Heacox

Top 4 inverter installation issues from CPS

Ed Heacox, GM, CPS Americas

  • “Grid V Out of Limit.” This is when the customer forgot to check that AC switch is on, so the inverter thinks the AC grid voltage is out of limit.
  • String mis-match. An inconsistent number of panels per string on one MPPT.
  • Exceeding DC/AC ratio recommendations. This can lead to occasional intermittent faulting.
  • Installing the DC string from left to right when it would be more ideal to balance the load across two MPPTs. This can lead to one MPPT too far out of balance from other MPPTs (e.g. four strings in No. 1 and one string into No. 2).
Peter Mathews

Peter Mathews

Watch your Connections, System Design

Peter Mathews, North American general manager, SolarEdge

Two very common errors are the improper mating of the connectors or reverse polarity. Other items that relate to the connectors include leaving connectors open during the installation process, which can lead to water penetration, or not fully crimping the wires. Another area in which we see support issues arise is in system design. For example, SolarEdge enables the installation of longer strings, so installers who are used to standard design constraints may out of habit design short strings instead of the 11.25-kWp strings that are available with the SolarEdge solution.

Brian Lydic

Brian Lydic

Inverter Integrity Starts with a Correct Installation

Brian Lydic, senior standards and technology engineer, Fronius USA

The most common installation oversights we see are related to torqueing, inverter location and moisture management. The mounting bracket must be installed on a surface to ensure there is no bowing or warping of the bracket. The wiring compartment must be wired as per guidelines to ensure a flush mating of the inverter body to the mounting bracket chassis. If wire routing or conduit fittings are not considered, there may be a loss of integrity in this seal. Pay special attention to the DATCOM cover. Make sure it “clicks” or “snaps” in place before screws secure it. If the cover is simply screwed in, there may be bowing and slight gaps between the inverter body and DATCOM cover, allowing water ingress.

— Solar Builder magazine

Details on an optimized 343-kW PV system completed at a California sports facility

HelioPower completed two commercial PV systems at a state-of-the-art Southern California sports center in Ladera Ranch. The 63,000 sq-ft gym now sports a 343 kW system optimized with SolarEdge’s DC optimized inverter solution, coupled with the PredictEnergy Commercial Energy Management System. This represents a significant milestone in Ladera’s sustainability program and their ability to reduce their electricity costs. Canadian Solar’s high-performing PV modules and HelioPower’s distributed generation strategies work together to maximally reduce the levelized cost of energy for Ladera Sports Center.

Heliopower pv

System details

The system was split into two meters, consisting of two points of connections: the sports center and the office. The installation consists of 1,100 Canadian Solar 310 PV modules with 8 SolarEdge SE33.3KUS Three Phase inverters and 550 SolarEdge P700 power optimizers. By utilizing SolarEdge’s DC optimized inverter solution, Ladera Sports Center’s energy output increases from the PV System, constantly tracking the maximum power point at the module level. The power optimizers provide performance reporting through the SolarEdge monitoring portal for enhanced, cost-effective, module-level maintenance. SolarEdge technology meets advanced safety requirements, including NEC2017, and is designed to de-energize the DC voltage in the PV wires whenever the PV system is disconnected from the grid or the inverter is turned off for increased safety during installation, maintenance, and emergencies.

heliopower installation

“As a leading global PV inverter company, SolarEdge is committed to delivering innovative and cost-effective commercial solutions,” said Peter Mathews, North America General Manager for SolarEdge. “Offering value added products and services, we see ourselves as a partner to installers and EPCs and as such offer support throughout the entire PV system lifetime.”

“HelioPower’s mission is to work with our clients to find the most cost-effective solution to all of their energy needs,” said Mike Murray, Director of Commercial Operations, HelioPower, “PredictEnergyTM identified demand-side energy reduction opportunities that enabled Ladera Sports Center to complete the initial phase of their clean energy initiative on time, on budget with on-going energy savings.”

Ladera Sports Center is LEED Certified. LEED is a process framework that project teams apply to create highly efficient, economical and sustainable buildings. Ladera Sports Center will deliver at least 35% of the building’s electricity from renewable sources. Together, HelioPower’s integrated energy solutions and energy analytics profiling tools work to deliver a financially viable project, reducing Ladera’s energy costs and supporting their sustainability strategy.

— Solar Builder magazine

LG Chem debuts residential battery system in the U.S.

LG Chem Ltd., a global leader in lithium-ion batteries for automotive, stationary and consumer applications, has formally launched its range of award-winning residential battery systems in the North American market.

LG Chem battery

Battery details

LG Chem’s North American residential battery range offers AC- and DC-coupled solutions with capacities up to 9.8 kilowatt hours (kWh). Two voltage options are available, pre-matched with compatible inverters and suitable for both indoor and outdoor installation:

  • Low-voltage 48V: with capacities of 3.3, 6.5 and 9.8kWh; and,
  • High-voltage 400V: with capacities of 7.0 and 9.8kWh.

The 400V RESU10H (9.8kWh) product is compatible with SolarEdge’s StorEdge, which is a DC-coupled storage solution based on a single inverter for both PV and storage. Additional inverter compatibility options will become available later in 2017 to provide homeowners with a range of pre-tested solutions from the industry’s leading suppliers.

LG Chem’s residential batteries will be available via a number of leading solar/storage providers in North America. Following last year’s announcement of a partnership with LG Chem, Sunrun – one of the leading U.S.-based residential energy system providers – will be supplying LG Chem’s RESU systems. Sunrun already has installed initial systems in both Hawaii and California.

 

— Solar Builder magazine