Solar power Micro inverters
In recent weeks we now have seen a heightened interest among our clients in micro-inverters. Micro-inverters resemble standard inverters in that they turn the DC solar powered energy created by the solar component into AC energy that can be found in home and given into the utility grid. However, micro inverters vary than standard inverters in that one micro-inverter is attached to each solar power module at the rear of the module whereas traditional inverters, a.k.a. sequence inverters, tend to be mounted at ground level, typically in the garage of a house and one inverter will convert power for about 30 solar power modules. Therefore for a normal house that makes use of micro-inverters, 30 micro-inverters would-be mounted at roof degree in solar power array.
Lots of people think micro-inverters are brand-new, cutting-edge technology. They may not be. Micro-inverter technology goes dating back to the 1980s. The makers of micro-inverters consistently went into company after which after a long period they've been from company or purchased out-by bigger companies.
The guarantee of micro-inverters is that since there is a single inverter per solar module, the machine, in general will do much better. The proponents of micro-inverters argue that problems which reduce system performance such as shading, soiling and differences in electrical characteristics amongst solar power segments are mitigated or reduced because only the solar module with these types of a disorder should be impacted and all the other segments will run at their optimal efficiency leading to a rise in total energy manufacturing. Mind you, I stated the "promise" of micro-inverters...
This is actually the truth; micro-inverters try not to, according to actual real world data put together across lots of systems, provide a calculable increase in energy collect over old-fashioned string inverters. However, in uncommon circumstances, micro-inverters are a preferred option over a string-inverter such as for instance when the roofing room of the property features several different orientations and one inverter's MPPT tracker will likely not work, or when a method is afflicted by considerable shading. Otherwise, it's the viewpoint of the writer that micro-inverters can be avoided.
Of this several dozen systems we have set up with micro-inverters, on request of this buyer, ALL have had inverter problems. This is why good sense and exactly why we had been hesitant to consider technology for several consumers. Contemplate it, micro-inverters tend to be electronic devices and are mounted on the rear of a solar module where conditions exceed 150 degrees. Electronics as well as heat aren't buddies. Today, whenever a micro-inverter fails, it's not a simple fix. Specialists have to get on top, tear out of the whole variety to get at the failed inverter underneath the range, put in the new micro-inverter (Jesus assist them to) and re-install the device. Does this sound like a good idea?
Its disconcerting to observe that many of our competitors have gone to supplying micro-inverters standard. In about two years they will certainly spend the greater part of their time doing service calls to failed systems. This will likely end in their particular demise as businesses and we will then must program these orphaned methods. Good by myself, but not really great for the neighborhood business all together.
If you should be a property owner trying to get solar power don't get micro-inverters. You will be sorry.
I need to confess, we setup a microinverter system this present year. Despite having doubts concerning the technology, during the early 2014 SMA revealed their type of the microinverter and we also felt compelled to set up a system after a client essentially demanded it. Today, if it are not the undeniable fact that SMA is a rock-solid company with over 400 million Euro in money in the lender, supported by Danfoss, a 4BN euro business, additionally the undeniable fact that these small inverters are manufactured in america, we wouldn't touch all of them. But since SMA products go Sullivan solar powered energy's product selection test; 1) Manufacturer needs to be in operation provided the warranty period supplied, 2) needs to be from an organization with solid financials and monetary backing, and 3) should be a product from a socially responsible company, we decided we'd offer SMA's latest item the opportunity.