Our climate is changing now, with devastating consequences

Ice-covered Greenland isn’t normally associated with fires. But 2017 has seen a remarkable increase in the occurrence and severity of wildfires, and scientists are freaking out at the pattern of extreme weather events in the Arctic.

Thousands of acres of permafrost are burning in what appears to be Greenland’s biggest fire on record. And climate scientists are freaking out not just because the massive fires are unusual, but because they release large amounts of greenhouse gases and speed up the melt of the ice sheet and the carbon-rich permafrost. Continue reading “Our climate is changing now, with devastating consequences”

Off grid energy usage

 

There are many reasons why people live off the main electricity grid supply. They may live in remote areas where it is not economically feasible to connect to the electricity grid. Usually these communities have relied on diesel generators.

It may be a lifestyle choice where people want to be self-sufficient and take control of their own energy usage.

People that live at the end of electricity supply lines or Swer lines may have a lot of power outages and find it is actually more stable and economical to be off-grid or part of a local mini grid. Continue reading “Off grid energy usage”

Focus on the Solution – Not the Problem

 

Powering the new economy with clean energy

 

Many households and businesses already attach battery storage to their clean energy systems. Now is the time to grow the industry, encourage the take-up of storage and help make Australia a renewable energy leader. With public interest high, now is the time for a targeted, five-year support package to drive down costs and put battery storage in reach of every household and business.

Battery storage can reduce network peaks and troughs by storing electricity during off-peak times and discharging it during the peak. Continue reading “Focus on the Solution – Not the Problem”

Problems and Solutions solved with energy storage

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.

Batteries also reduce the amount of electricity that is exported to the grid from rooftop solar during the middle of the day. This has the capacity to significantly reduce variability and stabilise grid supply. Continue reading “Problems and Solutions solved with energy storage”

Battery power rating

Before purchasing any battery storage it is critical that you understand what you want to do with the battery. If you only want to shift some energy generated from your solar panels during the day to be used at night and don’t mind if you don’t have power when the grid goes down it isn’t as critical that your battery needs to be able to provide all the power you need.

However, if you want to be energy independent and want to have power in times of power outages (as most people do that purchase batteries) then you need a battery that is capable of running your house for a period of time. You need to consider your appliances and what you consider essential and determine what power will be drawn down by all of them. As can be seen in the above image you may need multiples of some battery technologies to accomplish this which may greatly increase the cost of an installation. Continue reading “Battery power rating”

Peak shaving to reduce peak demand charges

For many businesses it is important to look at using battery storage to reduce peak demand charges.  Often, even one large energy spike can greatly increase total energy bills with this drawdown increasing the energy charge for all power usage. If the peak demand needed can be reduced then the overall electricity charges can be reduced.

Peak demand usually occurs when several high energy using pieces of machinery come into use at the same time, particularly if this machinery has large initial starting energy draws.

Peak demand is usually calculated based on the highest 15 minute average usage over a given month, even if it only occurs once a month (some energy retailers actually use the maximum usage over a yearly period, again even if this maximum only occurs once a year).  These demand charges are also often charged on a tiered scale with higher charges the higher the peak is.

Continue reading “Peak shaving to reduce peak demand charges”

Climate of the Nation 2017 Australian attitudes on climate change

 

  1. Climate Change: The majority of Australians agree that climate change is occurring (71 %) and accept the scientific consensus that human activity is the main cause (57 %).2. Action: The majority of Australians want Australia to address climate change because they see strong economic, environmental and social benefits and opportunities in the shift to a clean economy (73 %).
    Continue reading “Climate of the Nation 2017 Australian attitudes on climate change”