A total of 21 different storage systems in the 5-10kW power classes were examined to determine the System Performance Index (SPI) as part of the Electricity Storage Inspection 2022.
The System Performance Index, determined by the University of Applied Sciences (HTW) researchers, is an economic index and indicates how much the tested storage system reduces electricity costs compared to an ideal storage system. The better the efficiency-related properties, such as conversion efficiencies, control speeds or standby consumption, the higher the cost savings achieved. The difference one point makes in terms of cost can be determined with a high degree of accuracy.
As a faithful participant, GoodWe took part in the PV storage test by HTW in Berlin for the third consecutive year. “The results never let us down.” According to this year’s examination, GoodWe’s hybrid inverters and high-voltage batteries stole the spotlight once again in the Asian market.
The two GoodWe hybrid inverters tested, GoodWe ET and GoodWe EH, achieved an SPI of 93.4% and 91.2% respectively together with technology firm BYD batteries.
Another focus of the study is the design of PV storage systems. The simulations and analyses carried out show that sizing the PV system as well as the storage system according to demand is particularly important from an economic standpoint.
The larger the PV system, the higher the spared CO2 emissions. Any suitable roof surface should be used to produce solar electricity in order to increase the degree of self-sufficiency and reduce CO2 emissions.
The use of the two tested GoodWe hybrid inverters 5000-EH and 10k-ET and the installation of a simple PV storage system pays off for a homeowner not only in terms of CO2 emissions, but also financially, as they can break even within seven years. Based on rising energy prices, the payback period will shorten even further.
GoodWe has the widest range of storage products in the market, covering single-phase, three-phase, high voltage and low voltage batteries. The company invests heavily in researching and developing storage solutions in different application scenarios. In countries where electricity prices are high, an increasing number of homeowners prefer to install hybrid inverters to maximise self-consumption.
GoodWe’s backup function ensures a stable power supply for 24 hours in extreme weather conditions. In countries where the grid is unstable or in poor conditions, consumers are affected by power outages. GoodWe Hybrid systems are the best solution for a steady uninterrupted power supply for the residential and C&I segments.
GoodWe ET PLUS+ Series, Three-phase Energy Storage Inverter
Smart optimisation of energy autonomy across residential ecosystems Operating at the heart of the integrated PV power and storage system, our ET Plus+ hybrid inverters are designed to maximize energy output, enhance self-consumption and facilitate backup power. With intelligent load controls and a wide battery voltage range, the set-up can be flexibly configurated to meet individual needs across the residential ecosystem. Combine with GoodWe battery system Lynx Home F for a safe and reliable energy storage solution.
Lynx Home F Series, High voltage battery
Safe and convenient HV battery system for PV power back-up and energy autonomy Ideal for smart energy management and backup optimisation, high-voltage (HV) battery system Lynx Home F is a perfect match for residential solar systems. The stackable, self-detecting battery modules make the system especially easy to install, while the reliable lithium iron phosphate (LFP) battery cell technology ensures maximum safety. Lynx Home F offers a wide capacity range from 6.6kWh to 16.4kWh and is compatible with GoodWe BH/EH/BT/ET inverters.
GoodWe EH Series, Single-phase Energy Storage Inverter
The GoodWe EH Series is a single-phase, on-grid inverter that is designed to maximise self-consumption of PV energy. The EH is compatible with high voltage batteries to empower a flexible system design. As the core of reliable electricity supply, EH series can automatically realize the UPS-level switching to the backup mode in less than 10 ms, ensuring that critical loads experience with no interruption. Being communicative by supporting multiple communication protocols, it allows for smart home integration and maximized system status transparency.
About GoodWe GoodWe is a world-leading PV inverter and energy storage systems manufacturer listed on the Shanghai Stock Exchange (Stock Code: 688390). The company has more than 3,000 employees located in 20 different countries and a team of over 600 engineers working at its R&D centres to continuously optimize and advance energy storage technology. GoodWe storage inverters were ranked No. 1 globally by Wood Mackenzie in 2020, with over 15% market share, and the company was ranked one of the world’s Top 10 inverter suppliers by IHS Markit. Having achieved over six consecutive TÜV Rheinland “All Quality Matters” awards and consistently being ranked at the top in terms of overall product quality, GoodWe’s comprehensive portfolio of products and solutions for residential, commercial, and utility-scale PV systems is guaranteed to deliver high performance and reliable quality across the board. For more information, please visit goodwe.com.
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