If you want a system with an inverter larger than 5kW then your local Electricity Network may insist that you use more than one phase. The inverter output is best connected to the phase with the least daytime usage. With that background, I am getting different information from solar sales people and installers on how the billing works. Install a 3 Phase Stand Alone Off Grid system as an independent 3 phase supply source for any circuits you want. All the best for your project Jeff. Make sure the wires are securely connected. All the best with your project John.
. One of the phases is used considerable more than the others. He needs batteres to supply the 1500w loads for 12hours at night. A rectifier does not downshift or up-shift the voltage. Go to your local ombudsman if you have to.
After querying that 3 times with Miele as to what the problem might be and how to fix it they have just agreed that that is what the instructions say. Many consumers, including myself are in the position where we have 3 phase to the house but only 1 phase has the import and export facility. It is irrelevant to which phase the inverter output is connected. The salespeople will tell you what you want to hear, the installers will do what they wish, regardless of the contract, and the company will take your money. The three wires are normally routed through the inside of the pole.
To answer Steve McGahey, there lies the issue Steve. The turbine is mounted on a pole, preferably 30' or higher above the tallest object that is within 100 feet 300' is preferred from the turbine. A spinning turbine blade can slice though a skull like a knife though butter -- be safe!! It appears to me that the only appliance using the 3 phases is the air conditioner. Can you confirm what answer is correct, or how I find out the definitive answer to this as it makes a massive difference to the economics of the whole system. My other option is to purchase a phase changer to convert single phase 240v to 3 phase 415v. Thus the amp meter displays the current flowing through the shunt which of course is the current from the turbine to the battery bank. I run the hotwater, pool pump and any other things such as washing or using electric appliances during those hours and i do not pay for power unless it is wet and cloudy.
Obviously my metres just measure my energy usage. If you want to become more energy independent you have the option of installing a solar hot water system. After reading comment I have noe a need to know more. This way you are only drawing off the batteries as needed mostly at night. How the solar power is fed into thd system so if uses my power first. They are independent in the sense they both do their own thing.
Is something like this possible? Actual usage is cheap so i hope by installing a battery i get rid the corrupt govt charges. What did you end up doing because your situation is identical to mine including the size of system 3 kW. All phases will feed the grid. If your solar system is producing 4. This is a very simple, yet very effective way of preventing battery overcharging. I am not sure what is involved in retrofitting three phase to my surburban house to do this, Can you please explain what would be involved and how this may affect my solar system.
This allows the breaker to be used as a switch, in addition to providing over-current protection. Otherwise if you are installing a system and have the choice of one single phase meter, or one 3 phase meter, the choice is yours. This will result in the electricity meter cancelling the two out and regarding the home as using zero net grid electricity. The total number of kilowatt-hours of grid electricity consumed should not be increasing while the number of kilowatt-hours of electricity exported should be. Your three phase appliances will be supplied with a mixture of solar power, stored energy in the battery and grid power.
They messure all three phases induvidualy. If I should use the 3-phase unit, would there be a problem if the 3-phase unit becomes an open-delta unit due to loss of one of the three strings? This article goes into the details: When your installers told you it would operate at 93% to 97% they probably meant as a percentage of a typical north facing system. Does anyone care to comment? Seems to me this is a fatal flaw. These inverters are more efficient Wiring Methods 3 Labeling 3 Module Compatibility 3 Safety3 Conclusion 3 Transformerless Inverters. Hello Byron If a house was using no electricity and exporting one kilowatt of solar electricity on each of its 3 phases and then an appliance on one phase that drew 3 kilowatts was turned on, that phase would use the one kilowatt of solar power being supplied to it and draw 2 kilowatts from the grid. They worry that any electricity they use on the 2 phases that are not connected to solar will all be imported at 30c per kWh no matter how much solar they are generating on the solar phase. You should be able to check on your electricity meter how many kilowatt-hours of solar electricity your system sends into the grid, if you want to double check.