Monthly Archives October 2014

Enphase Myth Busters – Micro Inverter systems are not battery ready

AC Coupling allows the use of Enphase Microinverters with off-grid and battery-based photovoltaic systems. These applications require a battery-based inverter to create a “microgrid” that the microinverters can then be connected to. This is generally referred to as AC coupling because the Enphase Microinverters and the battery-based inverters are “coupled” to their AC outputs. These systems are no more complicated than a standard string inverter set-up and have the advantage of providing power during power outages, in emergency situations, and to remote locations. Enphase Microinverters, when AC coupled to a battery-based inverter system, offer advantages over other inverter technologies. This
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Enphase Myth Busters – Micro Inverters are Unreliable

Enphase Energy now has over 5 million microinverters installed around the world, and with commercial success dating back to 2006, Enphase has a proven track record both here in Australia and in key solar markets such as North America and Europe. The technology behind micro inverters is fully tested and solar industry approved for the harsh conditions on an Australian roof, and last summer no micro inverter in Australia shut down because of heat – More on that here. Continuous Improvement The 4th generation M250 Micro Inverter underwent over 1 million hours of testing, as did the popular M215 microinverter.
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The pitfalls of using renewable energy as a political football

Federal industry minister Ian Macfarlane has finally revealed his opening gambit on negotiations on the future of the Renewable Energy Target (RET). He and environment minister Greg Hunt have pledged to leave household solar alone but want deep cuts to targets for all other forms of renewable energy development. This was not unexpected, and it is just a symbolic ambit claim, an opening position designed to accommodate future compromise. But it does highlight some interesting points about the politics of renewable energy. First, the government understands that millions of votes are potentially at risk if it tries to cut incentives
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Enphase Myth Busters – Microinverters only make sense in shade

[cherry_row] [cherry_col size_md=”12″] One of the first things to know about microinverters is they eliminate single points of failure in solar photovoltaic systems. If you get shade on a module, it affects only that one module. With string inverters, shading on a single module affects all the modules in an array. Does this mean microinverters make sense only in areas affected by shade? Not at all. Enphase Microinverters perform better than string inverters because they deliver higher system uptime. They also minimise losses caused by modules, cabling and external factors like soiling. In full sun or shade, you harvest more
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Planned cut to renewable energy target ‘a free kick’ for fossil fuels

The federal government’s plan to reduce Australia’s Renewable Energy Target (RET) could jeopardise billions of dollars in investment while giving a boost to the fossil fuel sector, experts have predicted. Industry Minister Ian Macfarlane and environment minister Greg Hunt have proposed a reduction in the target, from 41,000-gigawatt hours (GWh) of renewable energy by 2020 to around 27,000 GWh. The ministers said the reduced target would represent “a real 20% of electricity production in Australia, as was the original bipartisan intent” of the scheme. Declining electricity demand means that the current target represents around 27% of Australia’s projected 2020 energy
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