We are pleased to inform our friends and partners that GoodWe has been honored this week with the TÜV Rheinland’s 2020 “All Quality Matters” award in recognition for the outstanding quality of its EH Series storage inverter and its MT Series C&I inverter. This is the fifth consecutive year that GoodWe has won this prestigious award, which shows just how consistent the company has been in delivering high-quality products. The award ceremony took place on 30 June in the city of Suzhou and was attended by the company’s founder, Mr. Huang Min.
The evaluation process that preceded the decision for this award was very comprehensive and for this edition, Rheinland started testing one year in advance, only concluding its final report in June 2020. Renowned for its objectiveness and impartiality, the TÜV Rheinland’s “All Quality Matters” award has become an important reference point on a global scale and being a recipient of this influential award is always an honor.
In 2019 GoodWe was ranked “World’s Number 1 Storage Inverter Supplier” by Wood Mackenzie and there was indeed much speculation about which storage product would receive the glamorous TÜV award this year. It was later confirmed that the EH Series had received the highest score due its versatility, safety and efficiency and overall ease of installation. GoodWe’s EH Series is a high-quality storage inverter with battery-ready function and, as part of this evaluation, it was tested against competitors’ products on the categories of efficiency, output and input capability, power quality and thermal stability. GoodWe is coming first on the below parameters thus becoming this year’s undisputed champion:
1. Efficiency: This inverter can achieve a Max MPPT efficiency of 99.9% and comes with two MPPTs, which makes it a leader among single-phase storage inverters.
2. Max. Input Power: EH Series is the first single-phase storage inverter in the market compatible with bifacial double-glass modules, which allows 12.5A input current per string. It also allows 35% DC oversizing to fully maximize capacity.
3. Max. Output Power: The EH Series proved to be able to improve AC output capability, generating more power thanks to its ability to support 1.1 times rated power output for extended periods.
Apart from its strong performance, EH Series offers customers the possibility to upgrade to a full energy storage solution by simply purchasing an activation code. Moreover, the fact that it takes less than 10 seconds to switch from grid to PV helps users avoid expensive intakes from the grid. It comes with an automatic UPS function and one of its most remarkable features is that even when it is on back-up mode it can still supply power to large loads. Last but not least, the communication cables come pre-wired, reducing installation time significantly. The Plug & Play AC connector also makes operation and maintenance a lot more convenient.
The three key features of the EH Series that stood out were its 30% oversizing ratio on the DC side, its outstanding and unique UPS function and its compatibility with several brands of high-voltage battery brands, including BYD.
GoodWe has come a long way in the C&I segment, expanding its portfolio to include products up to 136kW and up to 12 MPPTs. In this year’s TÜV Rheinland award the MT Series (50-80kW) topped the list with its high efficiency, 50% DC input oversizing capability and 15% AC output overloading. The MT Series inverter comes with four MPPTs and is also capable of operating at 50 degrees Celsius. In addition, it offers optional PLC communication.
At the ceremony award, Mr. Huang Min mentioned that year after year, despite the challenges, GoodWe has consistently delivered high-quality inverters ranging from residential, storage, C&I and utility. Consistency and versatility have been GoodWe’s most important assets and its main contributions to the ongoing energy transformation. GoodWe would like to express its appreciation to its customers and partners for their continuous support and for sharing all that valuable feedback that helps us improve our products.
GoodWe is a leading, strategically thinking enterprise which focuses on research and manufacturing of PV inverters and energy storage solutions.
Hitachi ABB Power Grids tracks Dublin’s data center surge via grid connections
One gigawatt substation will support the city’s growing number of data centers to enable the new norm of remote working through efficient connections to electrical infrastructure
Hitachi ABB Power Grids has delivered a fully integrated, high-voltage substation close to Dublin’s digital business hub at Castlebagot, fast-tracking the standard two and a half year execution time to just 18 months, to keep the city’s growing number of large, increasingly important data centers running smoothly 24/7.
The project was commissioned by Ireland’s state-owned Electricity Supply Board (ESB) to meet Dublin’s recent, unprecedented upsurge in demand for electricity, due to the proliferation of new data centers. The project is the largest privately contracted substation development in Ireland to date. To ensure reliable supply to this booming industry, Hitachi ABB Power Grids has delivered a 220 kilovolt (kV)/110 kV substation with gas-insulated switchgear, including the protection and control SCADA system enabling an advanced power system management and monitoring of equipment status while in service. The gas insulated switchgear is a compact technology designed to minimize the substation’s foot-print, enabling space saving of up to 70 percent compared to air-insulated switchgear.
Dublin hosts some of the most important high-tech firms in Europe, in addition to a wide range of thriving tech start-up and colocation services. Planners are currently processing applications for additional, major data centers that will more than double the city’s electricity consumption in the years ahead. With its state-of-the art efficient grid solutions, Hitachi ABB Power Grids is helping to optimize power consumption while maintaining quality of supply.
“We specialize in the prompt delivery of reliable, high-voltage grid connections that respond to the ever growing use of advanced solutions continuing to support people through the challenging times of the current global pandemic.Efficient connections to electrical infrastructure are more critical than ever,” says Niklas Persson, Managing Director of Grid Integration business unit at Hitachi ABB Power Grids. “We are proud to enable the transition to the new norm of connecting people, when disruption to working patterns has increased the demand for remote and digital services, by meeting the need for a stable power supply.”
The energization of the Castlebagot substation in such a short time is even more remarkable given the current demanding situation. Hitachi ABB Power Grids and ESB were able to overcome this challenge due to their digital capabilities which made it possible to energize the substation safely and sustainably, while ensuring business continuity.
Substations are the building blocks for any power grid and facilitate the effective integration of power from conventional and renewable generation sources, to efficiently transmit and distribute it to consumption centers.
Hitachi ABB Power Grids is fast becoming the leading supplier of grid and power quality solutions for data center grid connections for both utilities and data center owners worldwide and is helping cities around the world to meet the extensive power demands of large data center projects. For this project, early collaboration with ESB ensured a design that fulfilled the utility’s availability and reliability requirements. It enabled fast project execution, leveraging our vast knowledge of utility grid codes and connection practices in different countries.
GoodWe Ranked as Global No. 1 Hybrid Inverter Suppliers by Wood Mackenzie
GoodWe reached No.1 rank among hybrid inverter suppliers on a global scale and now stands proudly at the very top of this exclusive list with more than 15% global market share. The figures have been confirmed by none other than Wood Mackenzie in their report titled Global PV Inverter Market Shares Full-Year 2019.
This extraordinary achievement gives us enormous pride and it is a pleasure to share this huge milestone with our customers. It is because of great R&D capabilities, enhanced by more than 200 solar researchers, that GoodWe has attained this position of leadership in the complex and expanding energy storage segment. As early as 2014, GoodWe began to enter the field of solar energy storage. After years of continuous research and strategic deployment, GoodWe now boasts the industry’s most comprehensive storage portfolio from 3kW to 100kW, covering single-phase and three-phase, high voltage and low voltage, DC-coupled and AC-coupled retrofit solutions.
At present GoodWe’s hybrid inverter portfolio consists of Series ES, EM, ET, EH, BT, BH, SBP, ETC, BTC, SEA, for different application scenarios and offer massive potential in the storage sector. Thanks to these advanced, outstanding products, GoodWe has signed strategic cooperation agreements with Krannich Solar, Voltalia, Memodo, and other leading global distributors.
GoodWe occupies the top spot in energy storage especially in Europe, South Africa and Australia. In markets where electricity prices are high such as Italy, Germany and Australia, an increasing number of residents have shown a preference for hybrid inverters due to FIT and high electricity bills, with the intention to maximize self-consumption. GoodWe’sbackup function ensures steady 24-hour power supply in extreme weather conditions. While in countries where grids are unreliable or in poor condition, hybrid systems provide the best alternative for self-sufficiency. The market is hungry for storage and GoodWe has the ingredients.
Photo1: 80kW solar storage system in Spain with 8 pcs of GoodWe ET Series hybrid inverters
Photo 2: 100kW solar storage system in Ghana with 10 pcs of GoodWe ET Series hybrid inverters
GoodWe has now won the TÜV Rheinland’s “All Quality Matters” award for four consecutiveyears since 2015. It is worth mentioning that the award-winning products range from the single- phase ES series in 2015, the SBP series in 2017 to the three-phase ET series in 2018, which proves GoodWe’s comprehensive and excellent ability in the Storage segment. All GoodWe storage products are equipped with a unique UPS function (Uninterruptible Power Supply). Compared to existing EPS functions (Emergency Power Supply) on the market, UPS is much better suited to inductive loads such as air conditioners or refrigerators with an automatic switchover time of less than 10 milliseconds, which guarantees 24/7 non- stop power supply.
Commenting on this incredible achievement, CEO Daniel Huang stated: “being the No. 1 Hybrid Inverter Supplier on the planet is a recognition that motivates GoodWe to keep improving. GoodWe has always seen delivering high-quality inverters as its most important competitive advantage and its main contribution to the ongoing energy transformation. We would like to express our appreciation to our customers and partners for their continuous support and for sharing all the valuable feedback that has helped us deliver outstanding products.”
GoodWe is committed to continue working with leading global partners to enhance energy efficiency and manufacture more cost-effective energy storage systems for consumers worldwide, managing the intermittent nature of solar systems and helping customers reach their goal of energy self-consumption and energy-independence, ultimately bringing sustainability to people’s daily lives.
How does solar on capped landfills work?
Modern landfills, whether they are privately owned for-profit entities or operated by local, federal or state governments, are government-regulated, highly controlled environments. Measures are taken to prevent precipitation from seeping through the waste and contaminating the water supply, odors must be controlled, waste containing certain toxins needs to be kept out and gas buildup can become an issue. In 2013, the EPA estimated there were approximately 1,908 municipal solid waste landfills (MSWLFs) in the continental United States that are managed by the states where they are located.
In order to prevent landfill waste from migrating into the environment and potentially causing harm, an engineered landfill “cap” is installed to create a protective barrier between the waste in the landfill and the surrounding area. A capped landfill can no longer receive waste, and it must be maintained and monitored for a number of years.
Capped landfills are increasingly attractive locations for new solar power installations. This is an unsurprising trend, since the number of active landfills is decreasing, leaving state and local governments with significant unusable parcels of land. The EPA estimates there are as many as 7,400 closed landfills in the country.
Installing solar projects on landfills can be a complex endeavor, and there are various important elements of permitting, construction, and maintenance that are unique to landfill solar projects that are not required for typical ground-mounted solar installation. CS Energy has completed over 150 MW of landfill solar projects, and our parent company, the Conti Group, has closed over 50 landfills via its environmental remediation business, so we have institutional knowledge unique to the solar community. When government entities and other stakeholders evaluate a landfill’s suitability or potential as a site for solar arrays, there are some specific features and characteristics they should note, since solar development is not optimal for every capped landfill.
Existing power generation
Converting capped landfills into power-generation sources is in and of itself nothing new, which means that many landfills have built-in connections to the power grid. Landfill gas (LFG) systems have been in operation for decades. They capture methane gas that is emitted from the decomposing waste and convert into electricity for both onsite usage and sale to the power grid. While LFG is endorsed by the EPA as a renewable energy source, there are multiple factors that are driving private landfill owners and municipalities to consider adding solar as an alternative (or additional) source of revenue. The landfill’s unique waste composition, height and density may render it unsuitable for LFG as a power-generation source. LFG systems also have a finite life and will cease operation when the methane generated from the landfill dries up. In addition, the methods for capturing LFG are not without concern. According to the New Jersey Department of Environmental Protection (DEP), LFG may contribute to ground-level ozone formation, add hazardous air pollutants into ambient air and emit large volumes of carbon dioxide and methane into the atmosphere, which itself contributes to problems associated with climate change. This can lead to a situation where necessary pollution controls become so onerous that their costs outweigh the benefits of an LFG project.
Pitfalls and risks
Although taking unusable land and transforming it into a source for passive revenue, like a solar project, might seem like an obvious win — both economically and politically — there are situations where local officials may oppose developing solar on a government-owned landfill. One concern often voiced is related to the possibility that the solar development may cause damage to the landfill cap by causing hazardous materials to leach out of the landfill and into the groundwater. These worries can be mitigated by partnering with developers, engineers and contractors with experience in the space to ensure that the work will not impact the integrity of the cap and the safety of the workers.
Because of the careful measures that must be taken to ensure the landfill cap isn’t compromised, landfill solar is roughly 10 to 20% more expensive to build than normal ground-mounted solar systems. In addition, landfill closure permits for landfills need to be re-written in order to allow solar panels to go on top, which adds time and cost to the project.
This means that in order to facilitate significant landfill solar development, state and local governments must offer specific incentives to compensate solar developers for the increased cost of installation and development on landfills. In fact, without such incentives, landfills are typically not an attractive development proposition; developers will instead continue pursuing traditional ground-mounted solar installations that are cheaper and easier to develop and build.
If local and state officials decide to establish programs to encourage solar development on capped landfills, they can reap significant benefits. We all want more renewable energy to help contribute toward the fight against climate change, but there is always debate about the best place to install new renewable energy projects. The community will prefer solar on landfills compared to solar on existing open space, farmland or forest land — development on these areas can cause significant public backlash, compared to landfills that generally garner significant public support.
Additionally, landfill solar projects can mean lots of local jobs. In 2018, when CS Energy built the Cuyahoga County Landfill Solar Project in Ohio, it found many qualified electricians in the region but a dearth of workers trained in solar in the area. Despite this, CS Energy still built a workforce that was 80% local Ohio residents, and in the process, was able to train those who were new to solar.
While people often focus on the national debates over energy policy, it’s local and state regulations and programs that drive most of the growth within the solar industry, particularly for landfill solar. At the end of the day, solar developers, contractors, engineers and local politicians and regulators need to work together to establish sustainable and practical solutions to drive growth of valuable landfill solar projects in their communities.
Checklist: Is a landfill a good prospect for a solar development?
While not an exhaustive list of feasibility considerations, the below factors are a good tactical starting point:
Age of landfill/ landfill maintenance requirements
Pre-1960s era landfills were, in many cases, conveniently situated open pits in the ground where all types of waste were dropped, with minimal consideration for engineering design and siting criteria. The EPA requires the owner or operator (both public and private sector) of each MSWLF unit to conduct post-closure monitoring and maintenance for at least 30 years. The older a landfill is, the more likely it is going to be considered a liability, and the more likely the owner is to be looking for solutions to turn the liability into an asset.
Landfills with minimal grades are attractive candidates for solar. The flatter the area, the simpler the solar design requirements and site preparation activities, and therefore, the costs.
In order to be viable for solar development, the available acreage must be large enough to fit a decent-sized project. For example, at CS Energy, we will only look at landfill solar projects that have at least 20 acres of flat acreage on the top of the landfill. (Source: solarpowerworldonline.com)
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