The Ultimate SPI Showcase: Here’s what to see at Solar Power International 2017

Big leap for microinverters

APsystems SPI

APsystems will unveil the YC600, a dual-module, smart grid and Rule 21 compliant microinverter at SPI in Las Vegas. A groundbreaking design in microinverter technology, the YC600 will offer the highest peak output power, faster transmission speed and more modules allowed per string than comparable microinverters. A wider MPPT voltage range will result in a greater energy harvest for homeowners.

You’ll want to get the full scoop at booth 1745.

Streamlined Shutdown

Fronius

Fronius is launching a new generation of its Rapid Shutdown Box, which the company says will be the most convenient solution for NEC 2014 (690.12) and NEC 2017 compliance, while enhancing overall rooftop and firefighter safety. The new generation includes two versions: the Fronius Rapid Shutdown Box Duo and Quattro.
“Based on customer feedback, we implemented many improvements into this new generation of our Rapid Shutdown Box,” says Michael Mendik, head of solution management at Fronius USA.

Directly connected to the inverter through the same conduit as the DC homeruns and powered by the array, the Fronius solution minimizes the number of components and eliminates the need for an external power supply. The low-profile design and the multiple mounting options allow for installation underneath the modules, ensuring a clean system look. In addition, the NEMA 4X rating ensures the box is built for severe outdoor conditions. MC4 connectors, spring-loaded terminals and generous wiring space make the wiring a breeze. The Rapid Shutdown Box also acts as a combiner box, removing the need for additional hardware. Booth 3943.

Lightweight, flexible power conversion

Ideal Power

Ideal Power invented a new kind of power conversion architecture that delivers on flexibility, allowing you to enable or disable any features depending on project needs. At SPI, check out its 30-kW Stabiliti Series power converters. These multiport, compact converters are smaller, lighter and dramatically reduce installation costs while increasing return on investment. Ideal Power recently partnered with NEXTracker to implement it in various PV sites throughout North America. Booth 1433.

A top rail clip to rule them all

Heyco solar rail clips

Heyco has been busy this summer, introducing several new clips and wire management accessories for the solar market. Newest to the lineup are the SunRunner 4-2 and SunRunner 4-2U, which are top rail clips for various racking manufacturers such as Unirac, Ironridge, Everest, SnapNRack, Solar Mount and other similar racking profiles. The SunRunner 4-2 and SunRunner 4-2U are suitable for the new Enphase Q Cable. At the booth, you can also enter for a chance to win a Google Home. Booth 4762.

Drive down carport costs

Baja Carports InterSolar 2017 Booth Models

Baja Construction always has a standout booth, and this year its in-house construction team will be installing its signature Baja Solar Support System design, the “Braced Single Post Support,” built with high-tensile light gauge steel to support 24 solar modules (7.8 kW). Included in the structure is an EV Station for the hot red Tesla parked underneath. Meet Baja’s in-house designers, engineers and project managers and also make certain to visit Baja’s sponsored lobby lounge for food and beverages. I’m sure you’re already there. Booth 4155.

Improve your grip strength

Ace Clamp solar mount
AceClamps are factory-assembled clamps with patented design features that allow strong connections to standing-seam roof panels without the use of set screws or any other loose parts that could damage the surface of the roof panel. AceClamp designs have been vibration tested during the development stage and incorporate special locking features to ensure that the bolts do not back out when subjected to vibratory loads from wind flutter and light seismic activity. Booth 809.

OMG Roofing solar mount

OMG Roofing Products has introduced PowerGrip Universal for mounting solar racking systems on commercial roofs. PowerGrip Universal is designed to reduce or eliminate ballast in solar racking systems, so there’s less weight, material handling and labor on the roof. Made of heavy-duty cast aluminum, PowerGrip Universal offers 3,300 lbf of tensile strength, 2,500 lbf of shear strength and 2,000 lbf of compressive strength. It’s one of the strongest anchors on the market. Booth 629.

Solar Connections

The Standing Seam Power Clamp from Solar Connections can attach to virtually any standing seam profile and draws its strength from patent-pending WaveLock Technology with optional two, three and five points of attachment. The top can be custom drilled and tapped to fit any bolt configuration. Offering ease of installation, the Silver Bullet set screws include a rounded bullet tip to maximize strength while also keeping the paint finish and seam free from harm. Additionally, the Standing Seam Power Clamp is available in standard mill finish aluminum material, making it an item you can easily keep in stock when the need arises. Booth 1569.

Reinventing the ground mount

Nuance Energy

Nuance Energy’s patent-pending Osprey PowerPlatform could revolutionize ground-mounted solar projects. This earth anchor foundation system satisfies permitting requirements for virtually any site and soil type without the need for geotechnical reports or special inspections. It eliminates the need for heavy equipment or cement by enabling small, unskilled crews to install the entire platform quickly and easily using only handheld tools. Booth 2108.

Meet the 4G platform

Ginlong Solis inverter

Ginlong Technologies is now shipping its Solis 4G Platform. What you can see at SPI this year in booth 2427 is the Solis-1P(2.5-10K)-4G-US single phase string inverters, with high switching frequency; 2, 3 and 4 MPPTs designs; 97.8 percent peak efficiency (97.5 percent CEC); fan-less NEMA 4X / IP65 design, integrated AFCI; web-based and smartphone app monitoring, all under 44 lbs. The Solis 25K-66K-US three phase inverters are designed for all commercial and utility-scale installations with four MPPT designs and ultra-low start up volume that maximizes energy harvest. Booth 2427.

Five trackers to, um, track

SunLink TTD

SunLink’s TechTrack enables efficient load redistribution and allows the system to handle extreme wind with less steel, fewer foundations and lower cost. Now, TechTrack’s intelligent control system also delivers equally responsive control modes for snow, flood and O&M. The result is system level benefits, visible in SunLink’s Vertex data monitoring system. Rigorous testing to UL3703 further reduces permitting risk. Booth 3319.

Soltec

SF7 is the next-generation horizontal single-axis solar PV tracker from Soltec. Soltec says the SF7 enables up to 5 percent greater MW per acre than other trackers and does that with 54 percent fewer piles-per-MW, 15 percent less parts count and 58 percent fewer screw type connections than leading competitors. SF7 standard features include short tracker site-filling options, unique steep-slope tolerance of 17 percent NS, efficient self-powering and innovative cable management solutions for combining, fusing and protecting PV source circuits more economically. Booth 3640.

Solar FlexRack TDP 2 Turnkey Solar Tracker_2017

Solar FlexRack is launching its TDP Tracker with a new BalanceTrac design to increase energy yield and reduce balance of system costs. This TDP 2.0 Solar Tracker with BalanceTrac, optimized for 1,000- and 1,500-V modules, has greater rotational range of up to 120° and enables more modules per row (up to 90). The robust design delivers autonomous tables that increase site flexibility to maximize land use. Booth 2538.

AllEarth Renewable

AllEarth Renewables is showing off its new Gen 4 tracker which will be self-powered, to guard against the grid going down and will have expanded communication options, such as Wi-Fi, cellular and SD card enabled. It will come as a complete, pre-engineered system for easy, efficient shipping. Booth 626.

Array Technologies

Array Technologies is revealing the results of a recent TÜV Rheinland-backed independent report focused on solar tracker reliability. Array’s latest single-axis tracker, the DuraTrack HZ v3, is often touted for its reliability and lower cost of ownership. Array says DuraTrack HZ v3 is proven to be 300x less likely to experience catastrophic failure during wind events than more stow-reliant, single-row competitors. Booth 2919.

Page two has new on big-time collaborations, products for boosting performance, installing on shingles and more.

— Solar Builder magazine

AceClamp hits the road to demonstrate entire solar system product lineup

ACE_TRUCK 1

Starting August 1, the new AceClamp Mobile Training Center will hit the road to provide on-site, one-on-one training for all of its products. AceClamp now has the resources and personnel to roll onto your jobsite or facility along the East Coast to train you and your staff on its family of products.

AceClamp’s extensive line of snow retention systems include, but are not limited to, standing seam metal roofs, slate and single ply membrane. Direct solar installations with microinverter attachments are also a big hit on the traveling tour.

AceClamp info

When you call AceClamp, you will be greeted by a real person answering the phone and can receive technical support from one of its senior engineers to assist in calculating snow loads or solar array layouts to ensure you are purchasing exactly what you need. There are no minimum buys with AceClamp forcing you to carry inventory. After placing an order your product will ship the “best way” when you need it, direct to a jobsite if desired.

— Solar Builder magazine

Clamps of Approval: Here’s what to look for when selecting PV clamps

AceClamp

Photo courtesy of AceClamp

The following advice was sent our way via Civic Solar. Check them out here.

Clamps, the racking component used to fasten and ground modules to rails, are an integral component of a racking system. Knowing what to look for in a clamp is a great place to start when vetting racking solutions. Ideally, solar module clamps should be versatile, high quality, aesthetically pleasing and ultimately save you time on the roof.

Versatile solar module clamps are important because they allow for streamlined purchasing and ensure that you always have the right materials in stock. With framed modules ranging from 30 to 50 mm in height, a clamp that can accommodate any height means that you only have to worry about stocking one part, regardless of the modules that you install. With module prices dropping, this simplicity allows you to opportunistically shift your module purchasing without having to worry about changing the racking you stock. Going one step further, the most versatile clamps will be both module height agnostic and double as a mid and end clamp. Having both of these features reduces SKU count and increases simplicity.

Does it meet standards?

Quality of the clamp needs to be considered because racking systems are responsible for the structural integrity of solar systems that will be around for more than 20 years. Some factors to consider are code compliance and certifications, the amount and quality of testing that has been done and the warranty provided by the manufacturer.

A clamp needs to be UL 2703 Listed, which means it passes electrical, mechanical and fire testing. Be sure the clamp is UL Listed rather than just UL Classified or UL Recognized. UL Classified means it has only passed a portion of the required testing, and UL Recognized means that only a component of the racking system has passed a portion of the testing.

Warranty is important because it shows the level of confidence a manufacturer has in its product. The industry standard for a racking product warranty is 20 years.

Is it a looker?

Aesthetics of a clamp should be considered because sleek looking systems will increase the adoption of residential solar.

For a clamp, more attractive means having multiple finish options and a hidden end clamp. Matching the color of the clamp to the color of the module frame will give the system a cleaner look. A hidden end clamp eliminates protruding rails, helping rail-based systems rival the aesthetics of rail-less while remaining more cost effective.

Does it save you time?

Purchasing a clamp that is pre-assembled with a low part count and integrated grounding can save you tons of time. Now, almost all of the top racking brands have integrating grounding, where modules are bonded directly to the rail through teeth on the clamps that bite into the module’s anodized coating. This eliminates components, reduces cost and results in significant labor savings. Also, choosing a clamp that is able to stand alone in the rail channel will increase ease-of-install and turn a two person job into a one person job. Some brands accomplish this through single pre-assembled pieces that have a robust enough end to stand alone while others use spring loaded clamps. Another consideration is whether the mid clamp has a t-bolt or square bolt end. Square bolts need to be run through the rail prior to installation, whereas t-bolts can be inserted into the rail at any point.

Looking for these key features will ultimately save you time and money and allow for a smoother installation process.

Marisa Borelli is product manager for racking at Civic Solar.


System Profiles: Clamps

SunModoSunModo’s Universal Bonding Mid Clamp Kit

These Pre-Assembled Universal Mid Clamps have a unique T-Bolt locking feature that ensure the T-Bolt remains vertical and in full contact with the rail to eliminate pull out. The spring-loaded top clamp and open collar nut accommodates module frames from 31 to 50 mm. The added Loctite easily engages the T-Bolt from the top of the collar nut. The shared rail adaptor converts standard rail to shared rail to allow landscape mounting of PV panels on E-W rails.

How does it save time and cost?

The SunModo self-grounding system that includes the pre-assembled universal bonding clamp eliminates separate module grounding hardware and saves installation cost.

  • Material: Aluminum
  • Certifications: UL 2703
  • Warranty: 20-year structural, 5-year finish

S-5!


The PV Kit from S-5!

The S-5-PV Kit is one of the first solar module mounting solutions to be listed to the new UL subject 2703 that covers both bonding and mounting. The S-5-PV Kit fits two grab components. The universal PV grab attaches adjacent panels, while the EdgeGrab cleanly resolves end condition requirements. S-5! clamps do not penetrate the roofing system or affect the roofer’s warranty. Fits the majority of metal roofs, including exposed fastened and corrugated.

How does it save time and cost?

With the new S-5-PV Kit, the module is simply anchored with the kit and automatically provides a ground path in the module frame. No lugs or wire required except to connect one string of modules to another and to ground the system. This connection detail represents installed electrical cost savings of $6-$12 per unit.

  • Material: Stainless steel
  • Certifications: UL and ASTM tested for use with extensive list of metal roofing manufacturers, profiles, materials and gauges.
  • Warranty: 25-year defect warranty (applies only when the S-5! product is properly installed, used and maintained).

AceClamp


AceClamp’s family of clamps

AceClamps are factory-assembled clamps with patented design features that allow strong connections to standing-seam roof panels without the use of set screws or any other loose parts that could damage the surface of the roof panel. Accessories include Solar Kits for securing PV solar panels; a Micro L-Foot to mount microinverters directly to the standing seam roof rib; and a custom designed L-Foot for attaching a racking system to the AceClamp when needed. AceClamp designs have been vibration tested during the development stage and incorporate special locking features to ensure that the bolts do not back out when subjected to vibratory loads from wind flutter and light seismic activity.

How does it save time and cost?

AceClamps and Solar-Kits are pre-assembled at the factory saving time at the jobsite. Four clamp styles fit the majority of the roof panels on the market, resulting in inventory cost savings. AceClamps install in less than half the time as most set-screw mounted clamps

  • Material: 6061-T6 aluminum and 303 stainless steel
  • Certifications: AceClamp ML and A2 UL Listed to 2703; AceClamp ML approved by Factory Mutual (4471) for wind uplift attachment. A2 and Solar-Kit tested to UL 467 Grounding.
  • Warranty: 20-year limited

EcoFasten


Ecofasten ASG-U Clamps

ASG-U clamps are efficient solar roof mount attachment options for any metal standing seam roof. Installation of the ASG-U clamps will not pierce the roofing material. ASG-U clamps are available in configurations for both vertical (double-lock) and horizontal (single lock) standing seams.

How does it save time and cost?

Two oval-point set screws are included as well as a hex-headed flange bolt for racking, making the ASG-U clamps not only fast and easy to install, but they will also maintain the integrity of your roof by not voiding roofing manufacturer’s warranties.

 This section appeared in our 2017 Mounting Guide. Not a subscriber? Sign up for a FREE subscription right here.

— Solar Builder magazine

New AceClamp website guides installers through standing seam metal roof product selection

AceClamp website

Plainville Ct.-based AceClamp PMC Industries launched its new website, www.aceclamp.com.
This new interactive website was designed to help installers understand what products are needed to complete the installation on snow retention or solar panels for a standing seam metal roof.

Simply start with picking the profile of the S.S.M.R. you are using and the website will guide you to the correct items needed. All supporting materials including but not limited to specification sheets, load test, installation instructions and industry recognized certifications are downloadable in a PDF format.

More info on AceClamp

AceClamp PMC Industries is a family-owned, “Made in America” business that has its roots and initially started in lighting fixtures and quickly diversified through the years. As the times changed so did the company’s product line branching out to include rip cords for parachutes in WW2, blenders for your kitchen, bearing for the seal industry and medical products for orthopedic surgeries.

— Solar Builder magazine