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Delta Electronics
Delta to highlight new innovative energy storage solutions and solar inverters at Intersolar 2015
The leading global provider of power and thermal management solutions will expand its product offering to include new energy storage solutions and inverters that meet the expanding needs of solar customers in Europe.
At Intersolar this year Delta will introduce new products to allow customers to benefit from solar energy even after the sun goes down. With electricity prices rising the storage and self-consumption of energy generated by PV systems can help customers use all the solar energy they produce, thus leading to greater energy independence and reduced utility bills.
Delta will introduce two new energy storage systems – the DC-coupled 7.4 kWh system known as the Hybrid E5 and the AC-coupled 3.7 kWh system known as Flex E3.
Further expanding its high-efficiency solar inverter line, Delta will also present two new inverters in the RPI series – the M30A three-phase commercial inverter with 30 kVA output and the H3 single-phase residential inverter with 3 kVA output.
Delta visualizes a clean energy future where everyone can enjoy the benefits of renewable energy and energy savings. With the introduction of our innovative energy storage systems and solar inverters, Delta is providing solutions that help everyone meet their energy goals in a smart and eco-friendly way.
Energy Storage Solutions
The Hybrid E5 energy storage system is composed of the RPI E5 hybrid inverter as well as an external battery cabinet equipped with a 7.4 kWh Li-ion battery, a smart meter and smart energy management box. The Hybrid E5 storage system is designed for new PV systems and features a high charging efficiency up to 97 %. This is made possible since the E5 inverter can send DC electricity generated by the PV system directly to the battery, without additional power conversion steps or equipment needed.
Because the E5 inverter and battery cabinet ship as two separate compact pieces in the system, greater flexibility and simplified installation of the equipment are an added benefit. The smart meter monitors energy flow and sends the data back to the smart energy manager box, the intelligence in the system. The smart energy manager box not only controls the E5 inverter and battery functionality in an optimized way but it also serves as a gateway to the internet and provides complete energy and battery data coming from the system for online viewing. The data from the box is sent over the internet via a router and can then be viewed on the SOLIVIA Monitor application from an internet-connected laptop, tablet or smartphone.
Image: Delta Hybrid E5 Inverter and Battery Cabinet
The Hybrid E5 system features:
• High peak efficiency (PV to Grid) of 97.2 % and nominal continuous power output of 5.0 kW for the E5 hybrid inverter
• Power electronics are combined in one enclosure featuring 2 MPPT to connect 5 kW of PV panels, 125...250 VDC battery in/ouput and AC in/output. Thus, minimized mounting and interconnections are needed.
• Energy management box to control and optimize the system and the power usage of the owner. It provides all power consumption and battery status data to the user online.
• Built-in customized energy management modes for different customer requirements
The Flex E3 is an AC-coupled energy storage system meaning it is installed directly on the AC Line, making it ideal for installation with pre-existing as well as new PV systems and is also compatible with other renewable energy sources such as small wind energy turbines. The unit consists of one compact cabinet designed to be wall mountable or floor standing with all needed equipment and software for operation included. It is available with a variety of system architectures for diverse customer needs with a single system offering storage capacity from 2.9 kWh to 3.7 kWh or with three systems in parallel offering up to 11.0 kWh depending on the selection of lead-acid or Li-ion batteries.
Due to its high flexibility, the Flex E3 can be used in several different intelligent modes. Self-consumption maximizer mode is ideal for the users that want to optimize energy consumption from their Flex E3 battery and PV system to avoid purchasing costly grid electricity. Schedule mode allows the system to load and discharge its battery at fixed times to ensure the lowest overall energy price in countries where electricity rates fluctuate during the day.
The Flex E3 system also features:
• Delta’s own AC inverters which offer >96 % energy conversion efficiency and nominal continuous power output of 2.34 kW for a single system or up to 7.0 kW for a 3 systems in parallel configuration.
• Nominal battery voltage: 48 V
• Remote monitoring and management through its communication capabilities that support Ethernet, RS-485, CAN bus interfaces. Compatible with the monitoring software SOLIVIA Monitor (and SOLIVIA Live app) for Delta’s PV inverters.
• Built-in customized energy management modes for different customer requirements
Commercial Solutions
The compact RPI M30A transformerless three-phase inverter features a nominal 30 kVA output but enables maximum power output up to 33 kVA. This feature allows the inverter to provide 10 % more power and higher yields when compared to other 30 kVA inverters on the market. The inverter features an excellent power density-to-size ratio and very high max. efficiency of 98.5 %.
For the system planner, maximum flexibility is ensured thanks to a wide input voltage range of 200 – 1000 V and 2 MPP trackers. Asymmetrical loading (33/67 %) is also possible, ensuring maximum yield in large commercial rooftop installations with multiple roof orientations.
The M30A electronics compartment with its IP65 enclosure rating is designed for protected outdoor installations, even in harsh environments.
An IP65 AC plug is also included in the scope of delivery along with a wall mount bracket that allows the unit to be easily and safely installed onto a wall.
Residential Solutions
The H3 is a single-phase inverter with 3 kVA power output and features a high efficiency of 97 %. The unit is the right choice for homeowners that are seeking an affordable solar inverter that has all essential functions plus reliable performance to generate clean solar electricity for the home.
A wide input voltage range of 125 – 550 V and a single high-speed MPP tracker offer greater system flexibility in small power PV systems with fewer modules.
The inverters feature an innovative heatsink design for cooling which draws the heat away from the inverter through a natural convection process. Because there are no fans required, maintenance costs are reduced and audible noise is greatly reduced. Additionally, the intelligent cooling design extends the life of electronic components and increases the life of the solar Inverter.
The RPI M30A and H3 will be available for delivery in select European countries starting in Q3 2015.
The Hybrid E5 and Flex E3 energy storage products will be available starting in Q4 2015.
Visit Delta at Intersolar 2015 in Munich from June 10 – 12 – Hall B2, Stand 330.
More information is available on our website here: http://www.solar-inverter.com/en-GB/100_6838.htm
Contact us here: http://www.solar-inverter.com/en-GB/933.htm
