During bushfires power is often lost to many areas and sometimes is not returned for days or weeks at a time. At these times communities often have to rely on generators, especially if, as in the devastating 2019-2020 Australian bushfires roads are cut off to complete communities for extended periods of time.
Strong winds also tend to bring trees down on power lines, again cutting off your power supply
With the installation of energy
storage systems most people look at the battery and concentrate on that but in
reality the battery inverter is an integral part of any energy storage system
and will dictate much of the energy storage systems operations.
Often when an energy storage
system isn’t working properly the fault lies with the inverter and not the
Inverter power is measured in kVA or volt amps.
The battery inverter takes power
from the solar PV array (solar inverter or MPPT) and battery which can be of
different voltages and converts it to 240V for household of business use.
Solar inverters are designed to
work with solar PV arrays and battery inverters are designed to work with
energy storage batteries. Hybrid inverters are also coming onto the market that
combine both solar PV and battery conversions.
More and more people are recognising that one of the major
issues with energy storage batteries are the dangers with fires and explosions
particularly associated with thermal runaway (self-sustaining fires). This has
become particularly relevant as people are considering installing the many
lithium ion battery technologies in their houses or businesses and are becoming
aware of the possibility of the dangers associated with this.
Standards Australia has been working on new installation
standards “AS-NZ 5139_2019” which will try and address this issue but there is
still a lot of discussion around whether the new installation restrictions are
too strict or are really looking at individual battery characteristics
correctly and fairly.
International Standard “UL9540A” has been developed to independently examine Fire Risk with Battery Cells and Evaluate Thermal Runaway Fire Propagation in Battery Energy Storage Systems.
GridEdge was recently asked to power Melbourne’s 3 day Sustainable Living Festival’s “Off the Grid” tent with our clean energy trailer with its Sodium nickel chloride (SoNick) battery .
This annual festival, is held at Melbourne’s Federation Square and runs along the Yarra river with many stalls showcasing renewable energy, sustainable living practices and gardening and permaculture information.
Battery storage systems being installed in Australia look set to confirm earlier predictions that battery installations will treble in 2017.
New data from the SunWiz 2017 Mid-Year Battery Report shows more than 7000 battery installations took place across Australia in the first six month of 2017. By contrast there were 6500 installations recorded for all of 2016. Current projections say Australia is headed for a total of more than 20,000 energy storage battery installations by the end of 2017. Continue reading “Battery storage uptake by households surges as grid costs soar”→
Amongst the G20 countries, Australia’s emission reduction target – a reduction of 26-28% on a 2005 baseline – is unusually weak, nowhere near what is required for us to play our fair share in meeting a 2°C Paris target.
The impacts that we are experiencing now at a ~1°C rise in average temperature are the forerunners of rapidly escalating risks as the temperature rises towards 2°C and beyond. An overview of these risks – worsening extreme weather, damage to natural ecosystems, disproportionate impacts on the poor and vulnerable – is given by the ‘burning embers diagram’ of the Intergovernmental Panel on Climate Change (IPCC). The series reveals a striking trend – as the science of climate impacts advances, severe impacts are now expected at more modest increases in temperature Continue reading “Accelerating Climate Action”→
One of the biggest problems with the efforts to use renewable energy to produce large amounts of the energy consumed on a daily basis has been its inability to reliably supply power at the times it is most needed. This can and will be addressed with the installation of battery systems that allow households, businesses and energy network providers to store renewable energy for use at night or in peak periods.
Solar panels convert the sun’s rays into electricity during the day with maximum generation being between the hours of 11 to 3pm. Unfortunately, for most people unless you are home during the day 80% of this power gets fed back into the grid for very little return. Likewise, although energy generation through wind is now very efficient and cost effective the times when wind produces energy can be intermittent.
There are a variety of reasons that people choose to make use of battery storage. In the domestic market the most common ones are to reduce the price they are paying for ever increasing electricity costs by shifting power from their solar panels collected during the day to when it is needed at night.