Advantages of AC-coupled high-voltage-battery over alternative solutions?


High voltage batteries only arrived in the market in the last 12 months. However their arrival has allowed a number of other technologies to changes the way battery storage can be included in the home. AC-coupled storage using these new technology high voltage batteries (i.e. > 120V DC) has a number of advantages for homes wanting to include battery storage with their solar system. In addition to being a lower cost solution compared to alternatives, AC-coupled storage with high voltage batteries can allow your home to increase its independence from the grid and provide you with greater flexibility in the future to change your system to meet the needs of a growing or changing home. AC-coupled storage with high voltage batteries is also typically a more efficient system meaning you’ll get more energy and power compared to a similar hybrid inverter system. And perhaps best of all, AC-coupled storage can turn any new or existing solar system into a true battery-ready system.

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What are your options when you lose your


When your PV system loses its premium Feed-in-Tariff (FiT), the priorities and objectives for the energy you generate from your PV system will change. When a FiT is much lower than the cost of grid supplied electricity, the main aim of your PV system will change from generating and exporting as much as possible, to generating and self-consuming as much solar electricity as possible. This change in priority for the PV system means you need to consider changes to your system to ensure you continue to get the greatest financial benefit from your PV system. There are a variety of options available to achieve this and depending on your unique situation, different options will be best suited to meet your individual needs. These option plus some preliminary checks before making decisions are discussed below.


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How to Design a Solar-Diesel-Hybrid-System Easily by Yourself

Solar hybrid system planning with Sunny Design

Designing a solar-diesel-hybrid-system is quite complex. There are many values that have to be taken into account such as meteorological data, electrical parameters, sizing of the components, profitability and many more. Sunny Design is a free tool that makes designing a solar-diesel hybrid system super easy. This article is a guide on how to design a hybrid system with Sunny Design to easily create offers for your customers, project documentation or suggestions for improvement for your existing diesel grid.

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Season’s Greetings!


As this eventful year in the solar energy industry draws to a close, we wish you and your family a peaceful and relaxing holiday season.

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5 Reasons to choose SMAs Fuel Save Solution

Fuel Save Controller (left) and Data Acquisition Module (right)

Putting solar power into diesel based grids is easy but maximizing the share of solar is a real challenge. To save on diesel consumption, diesel has to be substituted by other energy sources. Solar energy is a cheap energy source but without intelligent system control it is hard to reach high solar shares in diesel grids. Uncontrolled solar energy feeding into a diesel grid can, even with a small share of solar, lower the diesel workload to a disadvantageous level in solar peak times causing inefficient operation of the diesel gensets, more frequent maintenance cycles and damage to the equipment. If too much solar generation capacity is installed, even reverse power into the generator is possible, which can cause a blackout in the best case scenario and equipment destruction in the worst case.

This article shows how the SMA Fuel Save Controller 2.0 (FSC-20) facilitates high solar shares in diesel based micro-grids and thereby saves diesel as well as money in a smart, flexible, safe and easy way with SMA supporting you whenever you need it.

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Fuel Save Solution – Info Package


The SMA Fuel Save Solution is a smart, safe, flexible and easy way to save fuel and money. This page is an entry point for all of you who would like to save fuel and money in solar-diesel-hybrid-grids. Here you find information about what a Fuel Save Solution is, how to plan and use it and where in the world you can see the Fuel Save Solution in action. 

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Digitization of the Energy World: 5 Ideas on the Evolving Importance of Photovoltaics


The energy industry is facing significant upheaval—digitization will result in completely new business models. What role will photovoltaics play in this?

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Service Tip: Setting up Sunny Boy Storage to control export of SMA PV inverters

Service Tip Setting up Sunny Boy Storage to control export of SMA PV inverters

AC-coupled battery storage allows any new or existing PV system to flexibly add battery storage. The new Sunny Boy Storage is the simplest solution for adding battery storage to PV systems using new high voltage batteries such as the LG Chem RESU10U. However when adding battery storage to a PV system, grid operators may place additional requirements on the system such as limiting the export of energy from both the battery and PV inverters to the grid. With its smart capabilities, the Sunny Boy Storage is able to limit export of energy to the grid not only for itself, but also for up to three SMA PV inverters.

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Communication Upgrade: Seven Questions and Answers on the new SMA Com Gateway


SMA now offers the SMA Com Gateway for PV system monitoring and control. The name of the device says it all – as a gateway, it provides PV systems featuring RS485 data communication with access to state-of-the-art SMA Speedwire communication. Below, we’ve summarized seven important questions and answers on the new communication device.

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The Brazilian Photovoltaic Market: Poised for Rapid Growth


Brazil may be 20 times bigger than Germany, but it has just one-thousandth of the installed solar power —and this despite enjoying an average daytime solar irradiation of 5.5 kilowatt-hours per square meter, which is almost twice as high as in Germany. But is this potential being utilized? And, if so, is the know-how available to leverage it?

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Sunny Portal Professional Package Now Available for Residential Customers

The monitoring tool Sunny Portal Professional Package was originally intended for business customers who simultaneously service several PV systems. However, residential PV system users, may also find many of the functions valuable. After repeated inquiries from residential customers and an extensive phase of testing, SMA has now decided to also make the tool available to private system operators. In this blog post, I will go through the primary function in professional PV monitoring – the “Analyse Pro” function.

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Generator Settings on the Sunny Island for Off-Grid Systems


The SMA Sunny Island is a grid-forming battery inverter that can be used for the construction of stand-alone power supply systems. The Sunny Island inverters are capable of forming an AC grid, this sine wave can be used as an interface for PV inverters to synchronize and feed power into the system which is used for supplying loads and recharging batteries.

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