Delta debuts new residential solar inverter, all-in-one energy storage solution

Delta sent word about two new products for the residential solar market that it will be showing off next week at Solar Power International.

Delta inverters

 

E-Series for Residential Solar Power Backup Applications

Based on Delta’s transformer-less (TL) solar inverter series, the residential E-Series consists of the E6, E8 and E10 models, which have maximum output power levels of 6,000 VA, 8,000 VA and 10,000 VA. The E-Series is compatible with both DC and AC coupled for high- and low-voltage batteries, as well as standalone applications.

With the ability to support a wide variety battery backup systems and predefined energy management applications, the E-Series increases the ROI of a homeowner’s entire solar system. With Bluetooth and Wi-Fi compatibility, as well as a user-friendly human machine interface (HMI), the E-Series supports cloud-based data collecting, provides transparency into system operations, and is capable of performing remote firmware upgrades, reducing the need for on-site support visits. From the outset, simple wiring creates a stress-free installation experience that only takes 15 minutes from start to finish, including system configuration.

Designed in compliance with UL 1741SA testing to fulfill HECO and California Rule 21 conditions, the E Series is able to effectively operate in the smart grid environment. The E series also offers a high accuracy, integrated optional revenue grade meter (RGM) that complies with ANSI standards.

Delta All-in-One Residential Energy Storage Solution

Delta residential.

Developed to help homeowners achieve grid independence, Delta’s all-in-one energy storage solution consists of a 7-kW hybrid inverter E7U; external battery cabinet equipped with a high capacity BX_6.0 6kWh lithium-ion battery; R4 smart monitor and control system; and power meter. The solution is designed to fulfill real-time energy demand and energy storage requirements of a home. PV energy can power household loads, charge the battery, or feed into the grid automatically based on pre-setting. As a result, homeowners can capitalize on optimal power output from their PV systems.

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

The E7U hybrid inverter integrates seamlessly with the BX6.0 battery — creating a compact, flexible solution that can be detached as needed. It features three Maximum Power Point Tracking (MPPT), standalone functions and a high charging efficiency of up to 97 percent, sending DC power from the PV system directly to the batteries without additional power conversion, also supporting the power flow from grid to battery. Delta E7U is also equipped with a revenue grade meter (RGM) that complies with ANSI standards. Both E7U and BX6.0 are outdoor rated.

Delta R4 monitor system provides users with an easy-to-use monitor interface for power generation, consumption, and battery management. The power meter measures energy flow and displays data on the 7″ touch smart monitor, used to control the system operation modes and optimize the power usage throughout the day and night. Pairing with Delta Solar Cloud Service, homeowners can access data through their computers or mobile devices remotely, and receive warning and alarm information via email notification.

— Solar Builder magazine

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

Delta debuts outdoor energy storage system cabinet at Intersolar

Delta Group launched its Outdoor Energy Storage System (ESS) Cabinet at Intersolar North America, expanding its extensive line of energy storage solutions.

Delta ESS Cabinet explained

Delta energy storage system

The Delta ESS Cabinet incorporates lithium-ion battery modules, a Battery Management System (BMS), and a built-in HVAC system for thermal management. Boasting a scalable system configuration, and IP55 rated for dust and water protection, the ESS Cabinet can easily meet a diverse array of field capacity requirements, making it the perfect solution for any environment.

Through high energy density and a long lifecycle, the ESS Cabinet helps commercial and industrial buildings optimize energy usage and save on operational costs by enabling demand charge management through peak shaving, time-of-use optimization via load shifting, power backup, renewables self-consumption optimization and ancillary power services. The ESS Cabinet has a scalable capacity up to 1.32 MWh, making it ideal for medium to large scale commercial and industrial deployments.

Delta’s Full PV and Energy Storage Solution

At booth 9021, Delta will also be showcasing a wide range of solutions that can be paired with the new ESS Cabinet or serve as add-ins for existing installations. Delta’s portfolio consists of a wide-range of solar inverter technologies, power conditioning technology and even control solutions.

Delta’s Power Conditioning System (PCS) is a bi-directional inverter with industry-leading power performance engineered for grid-tied energy storage systems. This technology pairs perfectly with the new Delta Outdoor ESS Cabinet or other mainstream branded battery systems. Delta’s PCS has minimal stand-by power loss, and provides real and reactive power compensation to improve power quality for a building.

Solar power inverters are a vital part of every solar installation. Delta has a wide-range of inverter options ranging from 3kw to 80kw. On display will be Delta’s M42U and industry-first M80U grid-tied, three-phase, transformerless inverters. The two inverters boast exceptional peak efficiencies of 98.6 percent and 98.8 percent, respectively. Through best-in-class engineering and quality manufacturing, Delta’s rugged inverters offer a combination of longevity and efficiency.

— Solar Builder magazine

Delta debuts wall-mounted 80-kW solar inverter

Delta, a provider of power and thermal management solutions, unveiled its new M80U PV inverter — the first wall mount 80kW string inverter in the world. The M80U is a grid-tied, 3-phase and transformerless inverter that converts DC output from a PV system into AC with 98.8 percent efficiency, allowing it to be seamlessly used by the electric grid and within buildings. Designed with simple installation and energy performance in mind, the M80U expands Delta’s transformerless solar inverter technology to address the growing needs of commercial facilities and utility operators.

Delta Solar InverterAs a 2-stage inverter, the M80U has a wide input operation range spanning from a 200 to 1,000 volts direct current (Vdc). It incorporates advanced features that the company says will deliver maximum efficiency over a much wider power range than transformer-based inverters.

RELATED: LCOE Heroes: How inverters drive down PV levelized cost of energy 

As with its interior components, the M80U’s exterior was developed for versatility in order to account for a widening range of customer needs. The M80U employs a separable structure that meets NEMA 4X Enclosure Standards to protect personnel and prevent degradation or damage from adverse environmental conditions. To make installation as seamless as possible, the ergonomic grip and eye bolts provide an added level of convenience when installing or removing. In order to maximize space, the inverter can be easily mounted on the foothold of the PV panels without the use of a house or container.

The device’s all-in-one design integrates 16 strings with fuse protection as well as arc fault detection circuits. It includes built-in DC switches and AC and DC surge protection devices (SPDs). To provide increased flexibility during PV array configuration and maximize yield, the M80U is equipped with 2 maximum power point (MPP) trackers. As a result, the inverter is able to ensure optimal performance even in challenging environments, such as those with uneven grounds.

Product Features of Delta’s M80U:

• 80kW Max. Input power
• Excellent performance with max. efficiency 98.8 percent
• Wall mounted installation
• 2 stages inverter with wide input operation range from 200 to 1000 Vdc
• Wider operating temperature range from -13 degrees Fahrenheit to 140 degrees Fahrenheit
• 2 MPP (Maximum Power Point) trackers
• 16 strings with fuses protection
• Ergonomics handle design
• Outdoor application with NEMA 4X
• Arc fault detector
• Built-in DC switch
• Built-in AC and DC surge protection devices (SPDs)
• Optional ethernet

For more information on the M80U PV Inverter, visit the M80U PV inverter product page.

— Solar Builder magazine

Check out this huge solar thermal power plant using Delta Group’s trackers

Delta Group sent word about its participation in SolarReserve’s Crescent Dunes Solar Energy Project, the world’s largest concentrating solar power plant with integrated molten salt energy storage. Check it out above.

A key part of the electricity generation operation is Delta’s solar tracking solution, which synchronizes and manages over 10,000 tracking mirrors, called heliostats. The heliostats reflect the sun’s thermal energy to a receiver tower, resulting in the generation of clean renewable electricity. Now operational, the Crescent Dunes facility can produce more than 500 million kWh of electricity per year to power 75,000 homes during peak demand periods, even after sunset.

WATCH: PCI Solar constructs carport in Woodland, Calif. 

“Delta’s solar tracking solution offers industry leading performance and pointing accuracy, while using less energy to position the heliostats,” said Kevin Smith, SolarReserve’s Chief Executive Officer. “Our team worked closely with Delta’s engineering to develop advanced tracking technology that helps boost overall plant performance.”

“We are pleased to have worked together with SolarReserve on the Crescent Dunes Solar Energy Project, which now generates clean renewable electricity to power 75,000 homes with zero emissions. The project fulfills Delta’s long-standing mission to provide innovative, clean, and energy-efficient solutions for a better tomorrow,” said M.S. Huang, president of Delta Products Corporation. “It’s a milestone for Delta in developing total solutions. This successful case uses Delta’s solar tracking automation systems that combine a series of Delta’s advanced technologies.”

Delta’s solar tracking automation systems are developed by its Industrial Automation team, and include programmable logic controllers (PLCs), servo motors, power conversion and networking products, and system management software. Delta’s DVP-Series PLCs offer high-speed, stable, and highly reliable performance for all kinds of industrial automation machinery. Delta’s control system and AC servo motors provide high-speed and high-precision motion control for a wide range of industrial automation applications.

SolarReserve’s 110 megawatt Crescent Dunes Solar Energy Project located in Nevada uses 10,347 billboard-sized heliostats, each with an on-board Delta solar tracking automation system, to precisely reflect and concentrate sunlight onto a large 100-foot receiver atop a 540-foot tower. Within the receiver, molten salt flows through piping and absorbs the heat from the concentrated sunlight. The collected sun’s thermal energy heats the molten salt to over 1,050°F (566°C). After passing through the receiver, the molten salt flows down the piping inside the tower and into a thermal storage tank, where the energy is reserved as high-temperature molten salt until electricity is needed. The tank holds enough in storage to dispatch up to ten hours of electricity at nameplate capacity. When electricity is needed, even when the sun is not shining, the hot molten salt is used to generate high-quality superheated steam to drive a standard steam turbine.

For more information, visit the Delta Americas website.

— Solar Builder magazine