Solar Builder’s Chris Crowell asks APsystems critical questions on savings and benefits of multi-module microinverters. Check out the latest episode of The Pitch where senior director of marketing Jason Higginson answers the key questions about APsystems product benefits, comparisons with other technologies and how it can actually save installers time and money. Read and watch here.
When uncertain times defy innovation, new opportunities shine brightly for a long time.
This year marks APsystems’ 10th anniversary. While the situation worldwide is facing unexpected challenges on many fronts during this very particular year 2020 with the Coronavirus pandemic, Dr Zhi Min Ling, co-founder and chairman of APsystems, shares his views on his entrepreneurial story with APsystems from its very beginning when the economic effects of the 2008 financial crisis were still strongly present to where APsystems is today, having become the #1 multi-module microinverter supplier in the world. It is as if challenging uncertainty could also be a key in building long-lasting opportunities.
2020 is the year of APsystems celebrating its 1st decade, how does it make you feel?
Fortunate, honored and grateful. It is a major milestone for the company, especially in this very fast-changing inverter industry which is at the crossroads of high-tech microelectronics, energy and environmentally-friendly building sectors. Staying alive is one thing but growing profitably when you need to heavily invest in R&D on one side, while keeping enough agility to adapt to an ever-changing emerging market on the other side, is another challenge. The fact that we have been growing for 10 years while reaching profitability every year since 2012, is primarily down to the hard work, determination and patience of the hundreds of talented and committed people who have joined and believed in this company over the years.
What encouraged you to set up APsystems? And how has the company evolved over the years?
The company has changed dramatically for sure. We can look at the company’s development in two phases, I think. The foundation 2010 – 2012: it was the very beginning where every priority was focused on setting up our expertise in power electronics conversion designs to create a robust and cost-efficient microinverter solution. Within about two years, we managed to design, manufacture and launch our 1st single and duo microinverter products with the YC250 and YC500 which later became the best-selling duo microinverter worldwide. We set up our headquarters in Jiaxing, China, where we still manufacture our products thanks to the help of TDG group, our main shareholder and share our R&D department between Jiaxing and Cupertino….Then the 2nd phase was characterized by one obsession: how to make APsystems Grow Internationally with no compromise to profitability. Although we are still in this phase with constant profitability every year since 2012, I would say that over the past six years (2013-2019), and especially since Olivier Jacques joined the company in 2015, we have managed to structure ourselves by Business Units on all continents enabling us to serve our customers in more than 80 countries today.
What were the main challenges along the way?
It is quite fascinating to be able to be part of this solar revolution. Helping to make solar an affordable clean energy solution to everyone on this earth is inspiring but of course, the technological challenges are big. If you take communications for example, microinverters manage a considerable number of data points that need to be communicated back from the microinverters through the gateway and to the monitoring platform in the cloud. This means when systems like the YC1000, QS1 and YC600 apply remote firmware upgrades, this creates a demanding bidirectional data flow and traditional powerline communication isn’t going to cut it. This is the reason why we moved our portfolio to high-speed wireless Zigbee, which is up to three times faster than conventional powerline communication (PLC), creating a local 2.4GHz mesh network for fast and reliable data communication between the microinverters and the gateway.
Another constant challenge has been to adapt to increasingly complex market needs. The progressive integration of PV into the electricity networks has required Inverter manufacturers in many countries to release products capable of interacting in real-time with grid operators. Whether it is to adjust the PV production instantaneously, depending on the state of the network, or to prevent any electron from being sent back, performing such a functionality for the coming 20 years in a reliable manner with a product smaller than an A4 sheet and weighing 3kg average is a genuine achievement in technological integration, entailing very sophisticated R&D , manufacturing and testing capabilities.
How is the Pandemic situation affecting your activity?
When the COVID-19 first appeared in China at the beginning of the year, our activities were relatively spared since part of our production comes from outside China, even though a slowdown in manufacturing occurred during a period of about 1 month in the first quarter. The good news is that as we master the production infrastructure, we were able to quickly increase our production rate when the situation improved a few weeks later, ensuring a constant continuity of supply to all our customers and warehouse locations across the world.
Despite the inherent agility of our distributor partners and solar installers staying open and continuing their job as far as possible, we have inevitably been confronted by a slowdown in our sales activity worldwide this quarter. Uncertainty is the most difficult parameter to deal with when it lasts, it is the same for everyone as an individual but it is also a genuine opportunity to confront and challenge ourselves by overtaking obstacles with self-confidence. I strongly believe that the creativity and flexibility of our industry will rapidly lead to recovery during the 2nd half of this year.
What’s next for APsystems?
APsystems is now well recognized for its leadership in multi-module microinverters solutions bringing innovative products to market that are built to last. This is the DNA of the company and will continue to be. We have several new microinverter products planned to be launched in the coming 18 months including a new native 3-phase QUAD microinverter at the end of this year, but our ambition moving forward is also to increase our position in other Module Level Power Electronics. We have recently launched, especially in the United States, APsmart, a new Business Unit that includes advanced safety products such as a Module Level Rapid Shut-Down (MLRSD) device to meet new safety regulations on MW-scale solar projects. The APsmart MLRSD System is a SunSpec Alliance Certified device which maintains constant communication between the RSD and Transmitter, constantly monitoring voltage and current. APsmart offers state-of-the-art PV module rapid shutdown devices (RSD), ideal for any new or existing string or central inverter system, and meeting U.S. NEC 2017 690.12 Rapid Shutdown requirements.
APsystems is also working on a modular AC coupled Energy Storage System (ESS) for residential where priority, similarly to every product we manufacture, is given to high quality & reliability.
More is being demanded of solar inverters than ever before. Creating a brilliant, cutting-edge piece of equipment at a competitively mandated low price point is an incredible challenge. It’s not for the faint of heart, yet companies like APsystems are thriving in this complicated, demanding crucible of a niche. So how are they doing it? And how does APsystems continue to push the envelope on inverter advancements? Senior Director of Marketing Jason Higginson gives us a peek behind the curtain.
By Larry Busby, Technical Services Manager at APsystems USA
For a PV installer, there’s nothing worse than having to return to a jobsite. Except, of course, having to do it more than once. We’ve all heard the expression “work smarter, not harder,” but you would be surprised how often solar installers get in a truck and roll out to a jobsite to adjust or repair something that probably could have been fixed remotely back at HQ. Many software-savvy solar installers are boning up on best-practices to better utilize the systems and information already available to them—most of it right at their fingertips—to save both time and money.
For solar arrays, the most critical software typically lies within the power conversion devices, gateways and interconnected online monitoring platform provided by the inverter manufacturer. The online platform not only monitors the performance of the system, but also tracks a profusion of data points simultaneously and stores that information in the cloud. By checking certain performance specs, settings, activity and historical data, installers can quickly troubleshoot and fix common hitches or, at worst, narrow down the problem that’s plaguing a PV system.
Every inverter monitoring interface is a little different, but much of the information and tools available are typically the same. With an MLPE system like microinverters, you’re able to drill down to the PV panel level to see what each module is producing at any given time. When troubleshooting a system issue, or perhaps if you see a PV panel which is reporting low or zero watts, first try rebooting the system remotely if your monitoring platform offers that capability. With some systems, a reboot may help the interface identify the issue or it might reset the array to its default parameters in case an unusual grid event threw a monkey wrench at it. It could also spur the system to begin downloading recent updates which may have stalled when the system encountered the issue. You may even consider rebooting more than once.
If you’re still troubleshooting the issue, check the DC side of your system. For a microinverter system, you want to be sure each inverter is reporting at its minimal operating range (such as 16V) incoming DC from the panel. Next, check your AC output. If your system shows it registering 0V or 120V, the inverter may not be sensing the grid or enough volts from the grid to register as a 240V grid connection. Without an identified grid connection, the inverter will not convert energy, so if you see this as an issue with multiple sequential inverters, it could be a cable or connector problem. If it applies to the entire string or array, the problem could be a loose wire in the junction box, or a tripped or off breaker.
With a low wattage problem, you can drill down to the panel level online and check the voltage. If it’s registering under its minimal operating range, it’s likely a panel problem and not the inverter. You may still have to visit the site, but at least you know what you’re replacing and exactly where it is on the array which saves you time troubleshooting. When you hit the site, unplug the suspect panel from the inverter and take a live load DC voltage and current reading. If your panel is reading below its minimum startup voltage and 0 current, then the panel is the culprit and needs replacing.
Also, don’t underestimate the value of historical data. Looking back over a system’s history—especially that of a single panel—may allow you to identify recurring issues that seem to affect that particular panel. Perhaps a chimney shadow hits the panel at the same time each day. You can look back through the production history to see if it occurs often, or if you have multiple installations in a particular area, you can check each of those when you see unusual grid activity to see if and how it may be affecting your other sites.
Understanding what the site metrics are telling you will give you better insight into what’s happening at a job site. Learning what you can do to troubleshoot an issue online can not only save you a truck roll, but also significantly reduce your time identifying the problem if you do have to drive to the site. Most importantly, if you do need to hit the job site, remember that safety is paramount and to always turn off the AC before doing any work on the roof.
Real-time monitoring is an essential feature of today’s PV systems, but communication between system monitoring devices and the customer’s router is often overlooked.
Do you know best options and best practices? Christopher Barrett, Director of Techincal Services for APsystems, guides installers through the maze of options and issues for gateway connectivity in “The Installation Issue,” a special publication of Solar Power World on newsstands now.
Read “Address Connectivity Issues to Reduce Trips to Solar Sites” online here.
You’re a solar installer, not “the IT guy,” so why spend time dealing with connectivity issues, rebooting customers’ Wi-Fi networks?
While real-time monitoring is an essential feature of today’s PV systems, communication between system monitoring devices and the customer’s router is often overlooked. Understanding the options for today’s connectivity—and making smart choices for your customers—can save you costly return visits to jobsites.
Relaying performance data from the solar system to the customer’s computer or smart device and the manufacturer’s database involves constant, reliable communication between specialized components. The typical signal chain for communication links the solar array to the data collector, which is typically called a gateway—such as the APsystems ECU or the Enphase Envoy. The signals travel to the home internet router and onto various monitoring stations.
It sounds straightforward, but differences in home size and layout can mean the gateway and router are separated, likely by walls and floors.
Bridging the gap
Today’s solar customers have an almost bewildering array of choices (and acronyms) for linking the gateway to their router. There are Wi-Fi extenders or Ethernet cables, such as Ethernet-over-powerline (EoP), where wires used to distribute power inside homes also transmit digital data based on time division multiple access (TDMA) technology. You can even use old-school CAT-5 or CAT-6 Ethernet cables. Each option has its particular strengths and weaknesses, and the right answer for one installation may not work for another.
Making the right choice
Solar customers want reliability, from the solar modules to inverters to production. Connectivity should have the same level of reliability.
Match your hardware choices to the size and layout of the house with proven technologies and products to ensure uninterrupted, around-the-clock monitoring. Keep in mind that the best choice will invariably be a hardline connection whenever possible. With potential signal disruption, a wireless connection will only ever be as reliable as wireless allows. Today’s wireless technology is incredible, but critical connectivity requires highly reliable communication devices. You simply can’t beat a direct, uninterrupted connection. Test each solution to find your ideal answer for each installation scenario, and remember the best solution is the one that requires the least follow-up once you’ve left the jobsite.
This installation tip was provided by Chris Barrett, director of engineering and technical services, APsystems
See full article on Solar Power World
APsystems, the global leader in advanced microinverter technology for the solar PV industry, today announced its commitment to Extend the Day, a charity organization which gives solar reading lights to school children in disadvantaged countries with no access to electricity.
APsystems will donate $1 to the nonprofit for every microinverter purchased up to the amount of the charity’s 2017 administrative expenses for its Lights for Learning program.
“APsystems is proud to partner with Extend the Day to bring light to these children’s lives.” said Dr. Zhi-min Ling, APsystems Global President & CEO. “We firmly believe in what Extend the Day is doing around the world and are committed to helping them continue to achieve measurable results with their Lights for Learning program.
“This foundation commitment by APsystems is extraordinary,” said Extend the Day Executive Director Jo Lonseth. “It allows us to focus on expanding our reach and building on the successful projects we already have in Kenya, Nepal and Myanmar. Success in life for children living in disadvantaged communities often comes down to whether or not they can continue their middle school education. These solar powered lights cost nothing to operate and make it possible for school children to do homework after dark, improve their grades, and stay in school.”
APsystems first learned about the impressive work that Extend the Day is doing when the non-profit asked APsystems for help in designing a more reliable, lightweight, and inexpensive solar powered light. As a world leader in the development of innovative solar power electronic solutions, APsystems was the right choice and eagerly worked with Extend the Day to develop the ideal solution.
For more information on Extend the Day: extendtheday.org
Solar Builder Magazine’s special Inverter Issue is out now, and APsystems is featured throughout.
Always follow best practices to head off gateway communication issues, says Christopher Barrett, APsystems Director of Technical Services, in the “Ask An Expert” feature compiled by Solar Builder editors. Even in a “wireless” world, hard-wired CAT-5 connections can be the best and most reliable option, Christopher says – and save you the time and trouble of returning to the jobsite to sort out Wi-Fi problems.
Remember to compare warranties when doing your calculations – there’s real value in that certificate, should a system component ever need to be replaced. That’s one of the insights APsystems contributes to an informative story on Levelized Cost of Energy (LCOE), the formula that determines a solar array’s investment value over its lifetime.
Power and versatility are the hallmarks of the new APsystems YC500i with EnergyMax, a microinverter designed and built for today’s high-output modules, profiled in Solar Builder’s 2017 Inverter Buyers Guide.
Find out more about APsystems microinverters, “The Installers’ Choice,” on the inside front cover of the edition, on newsstands now.
Download the digital edition of Solar Builder’s Inverter Issue here.
Bainbridge Island Museum of Art near Seattle has earned the vaunted LEED Gold environmental certification, making it the first new art museum in Washington state to achieve the Gold rating.
The certification is thanks to a newly expanded solar array using APsystems YC500 dual-module microinverters.
This past fall the museum nearly doubled its array to 100 modules. The 28kW system caps a host of advanced sustainability features that extend from the roof down into the earth beneath the museum itself.
“What’s thrilling about this achievement is that it affirms how deeply Bainbridge Island and the museum itself care about all aspects of community vitality and wellbeing,” said Sheila Hughes, BIMA Executive Director. “We live, work, visit and raise families in a place that invests equally and deeply in cultural enrichment and in sustainability.
“It’s wonderful to see BIMA’s LEED Gold status, made possible through the generosity of its local donors, as a leading example of both.”
The U.S. Green Building Council’s LEED certification – for Leadership in Energy and Environmental Design – is a progressive code that rates new buildings for sustainability and promotes eco-friendly construction techniques.
Designed by Bainbridge architect Matthew Coates, of Coates Design Architects, BIMA earned high marks for innovation in design, indoor environmental quality, water efficiency, and site sustainability.
“Art museums are inherently energy-intensive, making LEED Gold designation an extremely challenging goal,” Coates said. “We’re proud to demonstrate that architects, builders and clients can work together to create beautiful buildings for our environment and for our planet.”
General contractor PHC Construction worked with the museum staff to secure LEED Gold certification. The expanded PV array provided the final “points” required under the LEED scoring system.
The array uses APsystems YC500 microinverters provided by Blue Frog Solar, and iTek Energy 240W and 280W modules.
The inverters were provided free of charge by Blue Frog Solar, Northwest distributor for APsytems USA.
“When the art museum came to us with their solar proposal a few years ago, we could tell it would be a special building in every way,” said Tim Bailey, Blue Frog Solar co-founder. “It’s been an honor to contribute to both phases of their solar project, and support such a great institution.”
Several other private donors stepped in so that the solar project had no effect on the non-profit art museum’s budget.
Installer was Puget Sound Solar of Seattle.
BIMA opened in June 2013 to showcase contemporary Northwest art and has been an unqualified success, recently welcoming its 250,000th visitor.
Building a sustainable museum
Architect Matthew Coates designed the museum to embody forward thinking in both aesthetics and sustainable materials and systems in a facility-scale building.
That commitment started below ground. A geo-exchange system uses 14 bores beneath the foundation to reduce the energy used for heating and cooling the building.
Drilled 400 feet, the bores act as a heat sink and source at a constant ground temperature of approximately 50 degrees. The system is designed to reduce heating and cooling energy by 90 percent, and to cut peak heating and cooling loads in half.
Thanks to the musuem’s sunny southern exposure, nearly all of the publicly occupied spaces enjoy generous natural light to further reduce energy usage for lighting.
A sophisticated louver system across the two-story glass façade tracks solar angles to reduce heat gain and glare inside.
Low-flow water fixtures inside and Northwest climate-appropriate landscaping reduce water demand.
During construction, 95 percent of construction waste was recycled, while more than 20 percent of new materials came from recycled sources. All paints, sealants and materials were selected to be non-toxic.
The site itself, on a prominent corner near the ferry terminal that connects the island with downtown Seattle, was reclaimed from a former automotive business.
During site preparation, numerous scrap automobiles and many hundreds of spent tires were excavated from the property and recycled.
BIMA now is an educational institution whose mission is “to engage a diverse population with the art and craft of our region and our time.”
The art museum exhibits, interprets, preserves, collects and promotes works of proven cultural value as well as new those by emerging artists and craftspeople.
When it comes to solar growth, it doesn’t get much hotter than San Antonio.
The market ranked no. 6 nationally for metropolitan growth in 2015, and no. 7 for the spread of solar, setting the pace for the Lone Star State.
Those trends converge at 330 Clay Street, a 32-home planned-solar neighborhood by PSW Real Estate now underway in the San Antonio’s arts and culture district, at the south edge of downtown.
Billed as “an oasis in the heart of the city,” the New Urbanism-inspired project features geometrically distinct homes clustered around a winding pedestrian path and drought-friendly, native vegetation. The modern designs are stylish, with acute angles, dramatic roof slopes, and accents of corrugated metal and cedar.
Efficiency features abound, from eco-friendly siding to high-performance windows, tankless water systems with “smart” fixtures, and the latest heat-pump systems for indoor climate control. Sustainable, low-impact materials are used throughout.
Topping it off is solar, with a compact array designed onto every single roof.
Austin-based installer Lighthouse Solar is pairing APsystems YC500 dual-module microinverters with Phono Sun 310W modules. Capacity across the whole neighborhood will be about 73kW from 234 modules at buildout.
Lighthouse chose APsystems equipment on the recommendation of regional distributor The Power Store, said Burke Ruder, procurement manager.
The Lighthouse installation team found the dual-module microinverters made for a quick install, and less time on the roof under the punishing Texas sun.
“Pretty easy wire management – just plug n’ play, man,” said Josh Bernard, one of the three-man crew at Clay Street.
Elijah Zane Echeveste, PSW Real Estate sales consultant for San Antonio, said PSW has been including a solar component on its homes for about three years.
Individual arrays at 330 Clay Street are modest – seven or eight modules per roof – putting solar onto every home while keeping price points attractive to a range of buyers. Home start at $295,000 for 1,250-sf, two-bedroom unit.
The energy package is paying off in early interest from buyers.
“Solar was important, and green-built was important,” said David McDonald, 330 Clay Street’s very first resident. On a recent afternoon, the expatriate Briton was taking delivery of appliances even as the half-finished neighborhood around him thrummed with the sounds of construction.
“We do a lot of green builds back in the Britain,” McDonald said, “and this might be one of the first ones in San Antonio with the option of solar and all of the sort of ‘green’ things around the house.”
Several other projects are also planned or underway in the corridor, including a sprawling former Lone Star brewery complex slated for mixed-use redevelopment on the banks of the San Antonio River.
The influx of stylish new residential and commercial development amplifies Southtown’s reputation as the city’s hot “bohemian” center for galleries, nightlife and culture.
“The area was important – we didn’t want to go outside of downtown,” McDonald said. “You can walk to all the restaurants and bars, even walk into downtown. We were the first to sign up, and it’ll be a good investment for us.”
The 330 Clay Street project reflects a fast-growing local solar market.
San Antonio is the top-ranked market in Texas, according to a recent report by Environment America. Solar capacity within the city limits jumped 23 percent year over year, from 88 megawatts to 108 megawatts – with significantly more capacity coming online in surrounding areas thanks to utility-scale solar farms.
About 207 megawatts were installed statewide in 2015, according to Environment Texas. Solar advocates credit a successful incentive program, which has fed consumer interest despite the state not having a net-metering law.
“Solar is an attractive feature for our buyers,” said Echeveste of PSW. “One of the largest reasons is that the solar panels reduce cost in energy bills and also increase the value of the homes. There is an environmental responsibility aspect with buyers wanting to be a part of this.”
APsystems offers advanced, powerful solar microinverter technology for residential and commercial systems. The APsystems solar solution combines highly efficient power inversion with a user-friendly monitoring interface to bring you reliable, intelligent energy. Our proprietary system architecture increases solar harvest and ensures maximum output for solar arrays, and we continue to develop new technologies and products for the marketplace.
- Thank you for joining APsystems in attending the recent NABCEP event in KnoxvilleAugust 26, 2021 - 6:45 pm
- September APsystems Installer Training WebinarsAugust 20, 2021 - 10:23 pm
- APsystems Diamond Sponsors at NABCEP ConferenceAugust 5, 2021 - 4:10 am
- July APsystems Installer Training WebinarsJuly 11, 2021 - 9:51 pm
- May APsystems Installer Training WebinarsMay 14, 2021 - 2:42 pm
At APsystems, we are committed to providing the highest quality service to our customers and partners around the world.
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