When you get an answer to your question, could you forward it to me, if unable to, tell me the gist of it? Take a look at the powerrouter http: My aim is to make solar is the primary source and the grid is the secondary source for my loads. I want to use energy from solar for my home appliances as well as charging battery banks also. The inverter should be able to disconnect the grid during grid failure. Can u please help me choosing the type of inverter and battery banks?
With the current buying price of energy being so high and feed in price being so low, we need a system that can charge a battery bank for the house to use during peak hours, feed back to the grid once the battery bank is full and also connect back to the grid when the bank is nearly empty. Dear Sam from Queensland , please read all my posts in this blog and revert to me at: Contact me at sudheersrivastav rediffmail. Have a very brilliant idea which you would love.
Dear Shady Abeid, Sudheer Srivastav and Apprentice electrician in QLD, I am also working on some ideas to apply hybrid solar technology for our small wastewater treatment systems. Please contact me at struftepete yahoo. Many people are requesting about this kind of system and are very enthusiastic about achieving this type of product implementation…. The reason why I am contacting all of you is because i want to design, implement and market a product which will make solar power a cost-effective viable option for everyone to use. Grid-Synchronous Solar Inverters are not great because as per the regulation laid down by Power Companies, they must power down when the grid supply fails….
I have searched all over the Internet and the above mentioned systems only are sold. I have tried contacting some mass production centers in Mainland China for mass producing my concept according to the excellent design specifications i have made, but none are yet up to the point of being able to understand the efficiency of the direct energy conversion system such as the one I am talking about.
Then I searched more vigorously and found this blog and i am thrilled that I am not alone in this thought process of wanting to make a high-efficiency direct conversion solar power system. I have a very good concept for the Solar-Mains Hybrid Power System to design it from scratch and I also know the exact parametric design methodology to ensure the highest possible efficiency and cost-effectiveness of this system. Hallo guys I have moved to south africa where laws on grid-tie not are like in europe. So people build stand alone systems. Im trying to find an inverter with an intern switch, that can use my power from my panels and batteries.
And when night falls it must be able to switch to the grid automaticly. But never feed electricity back to the grid. Can anyone show me a website with that kind of inverter? You can also check this link to see what i mean. The only problem with the picture on this link is that the system feeds overproducing electricity back on the grid. Hey Christian, Google the thing dude! South Africa is one place which adopts latest technologies much quicker than the rest of the world…. If not for him having taken time to create this blog and give the information which created interest in folks like us….
Hi, i am looking for Solar Off grid inverter from countries within europe also as per european standards,the range is from 1KW — 10KW. So can you refer any reputed company. Hi Vinod, are you looking for solar inverters to install them for customers in europe or do you want to import solar inverters from europe? Have you considered the fact that a solar hybrid system is way much efficient and extremely cost-effective than a pure off-grid system? I am feeling very enthusiastic about and hoping that the need for designing a direct conversion solar mains hybrid power system will be felt more than ever.
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I am hoping for a good response in this year I live in Andhra Pradesh and I am very much interested to know more about your concept of PV to loads, in case of inadequacy of PV then Grid and in case of Grid power cut then battery bank to loads. If you have developed a suitable inverter or know about someone who has one of this type, I request you to share the same with me.
Everyone is talking about storing excess solar electricity in secondary electrical cells but there are other ways to store energy.
Hybrid Solar Systems
There is a solar thermal power plant in Spain that collect solar energy using parabolic troughs that are focused on oil filled tubes, the hot oil is then used to produce steam or to heat molten salt, storing the heat for later use. Other ways that utilities store electricity is to use it to pump water up to a higher elevation and, when the energy is needed, let it flow back down through a turbine.
There is also mechanical storage using flywheels or as a pressurised hydraulic liquid or compressed gas. H2O produced during the process and the combustion of the Methane can go back into the electrolyzer and the CO2 can be recycled through the process. Oxygen produced during electrolysis can be either dumped or used to combustion of the Methane in a pure O2 environment, lowering NOx emissions.
Hi Mathias, i am glad to receive a message from you. Till now i have been able to post only half of my detailed reply. Dear All, I would like to clarify something. I am receiving many emails and posts asking me if I made some inverter or if I know someone who made it. If by that you mean a large black box which hooks on to a couple of batteries and wires run to the mains panel in your home and it beeps when there is a power cut…..
My device has the following sectional blocks:. Maximum Power Point Tracking.
HOW A GRID CONNECTED SOLAR POWER SYSTEM WORKS
The inverter stage is unlike ordinary ones and accepts different range of voltages from either a solar array output conditioner or battery bank. Also this system is designed to run few ceiling fans and tube lights etc overnight. So in my design, there is no huge battery bank stage. Hence it is a direct energy conversion system which is the best possible for a low cost solar-mains hybrid power system.
Currently I planned this system to be able to provide upto 4kW of power. Minimal battery bank will provide backup only to smaller loads like ceiling fans, LCD TV, Desktop Computer etc and not to washing machine or refrigerator. All this segregation of large inductive loads and critical loads will be taken care of by the device without any human intervention. The Electronic CAD software are expensive USD , there are many simulation models file formats and I need to have access to these to get the job done.
The only person in this forum who claims to have run simulations has still not responded to my messages to him and neither do I have his direct contact details. If anyone can search and find a device in the market which does exactly what I described above…. I have no argument with those who mailed me saying: Any help will be deeply appreciated.
Did you find the CAD yet? I know the needed software but there are some issues as I explained earlier in the blog that I need various component simulation file formats suitable for some particular simulators such as OrCAD, Altium Designer etc and also the trial versions do not have the required functionality. These software cost upward of USD Trial versions get us nowhere as far as these simulators as concerned. This research and design work cannot be done on home notebooks and makeshift sq feet rooms.
These are the stumbling blocks I am facing.
How Solar Power Works - Grid Connect Solar: Energy Matters
I have a off-grid hybrid wind and solar system. Is there any possibility to convert a off-grid to a on-grid system. Dear Manuel, what exactly do you mean by off-grid to on-grid conversion? If you mean that once your off-grid battery bank runs out of juice, you would like the system to revert to using grid power. Yes, that can be simply done.
Here is a link for the relay: There are basically three types of Solar Inverters:. The batteries are always involved in the energy conversion process. This type of inverter works only as long as the batteries have some charge left in them. This way the LOADS have an uninterrupted supply of power and chances of total blackout is quite less. In my last post dated: February 12, The output of the Inverter and Grid Supply are literally paralleled and connected to the Load. Let me cite an example to you. Say we have a 4. It also does a great job by letting us use that little amount of Watts of PV power to partially run our 1.
As the Sun moves across the sky and more PV power is generated, the lesser utilization of the Grid to power that 1. This is a safety requirement for maintenance and troubleshooting personnel. I am currently working for a University in Australia on a hybrid systems that will intergrate PV panels, batteries and the grid. Im very interested in this idea of Grid Synchronized Inverter that you mentioned. However I was just wondering what happens to any excess electricity that might be generated during the day and not used i. I think this is a fantastic idea if it can be made to work if the grid fails and power is lost.
If a battery backup can be implemented for these times then I think the idea is very plausable. Hi Tim, When the load consumption is less than energy production, it will always be fed back to the Grid for net metering and battery bank will also be kept charged. There will never be a time when the panels are producing power and are left idle. The only way this can happen is when the consumer is on a long vacation and the grid too has failed for a long stretch of time…..
However, I have some questions for you:. That is, a sunny day with an electric blackout and full batteries. Again — where would the energy be placed? Can solar panels simply be switched off the loop will they heat up or break? We visited the local electric utility today Southern India and they had not ever been asked about feeding electricity back to the grid. We need a system without the grid back-feeding, at least for starters. How does it re-sync once power comes back in.
Has anyone got such a system going? This would completely avoid the grid syncing problem and the safety protocol issues. If this thing already existed, could be bought off-the-shelf and had the exact nice features I have been screaming about all along, I would be the dumbest person ever.