The Times Australia
The Times World News

.
The Times Real Estate

.

how microgrids could help keep the power on during extreme weather events

  • Written by Soheil Mohseni, Postdoctoral Research Fellow in Sustainable Energy Systems, Te Herenga Waka — Victoria University of Wellington
how microgrids could help keep the power on during extreme weather events

Tens of thousands of homes and businesses are left without power as Cyclone Gabrielle batters New Zealand’s North Island, causing widespread damage to the power network.

The government has declared a national state of emergency[1] (for only the third time in New Zealand history) to coordinate efforts across the regions most affected.

The grid operator Transpower has declared a grid emergency[2] following the loss of power in some regions, advising people “should be prepared to be without power for days to weeks, rather than hours”.

This once again emphasises the vulnerability of centralised power systems to increasingly severe weather events. It is crucial for communities to adopt more resilient energy solutions that can withstand such challenges in the face of a changing climate.

The cyclone is the second significant weather event to hit Auckland and the upper North Island in just a few weeks, following record rainfall and flooding last month.

Our research[3] explores how renewables-based microgrids[4] and peer-to-peer (P2P[5]) energy trading can help mitigate these impacts and increase energy independence and security.

Read more: Microgrids: how to keep the power on when disaster hits[6]

Vulnerability of centralised power systems

Centralised power systems[7] rely on large power plants and transmission grids. They are susceptible to single points of failure, making them vulnerable to extreme weather events.

Cyclone Gabrielle and the recent flooding in Auckland, which both resulted in widespread power outages[8], are prime examples of this.

Microgrids[9] (small collections of power-generating assets, often run by communities) and P2P energy systems hold promise for sustainable and resilient energy. Microgrids are self-sufficient and can operate independently or in conjunction with the larger grid. They can run on different types of renewable energy sources, including solar, wind and hydro power.

This illustration shows a typical grid-connected microgrid.
This illustration shows a typical grid-connected microgrid. Author provided, CC BY-SA[10]

Microgrids are ideal for communities far from the main grid[11] or in areas prone to extreme weather[12].

P2P energy systems allow individuals and communities to generate, share and trade energy among themselves. This creates a decentralised energy market[13] and allows for more efficient energy use and distribution.

Case studies

Many microgrid and P2P energy projects across the world show the potential of these solutions. In rural India[14] and sub-Saharan Africa[15], microgrids powered by solar energy provide electricity to remote communities not connected to the main power grid.

The Brooklyn Microgrid[16] in New York City is also a shining example of a successful project. It allows residents to generate energy, share it and trade it with others in their community. This creates a more efficient and sustainable energy market.

Read more: Small communities could be buying, selling and saving money on electric power right now – here’s how[17]

Another successful microgrid and P2P energy project can be found in the town of Rock Port, Missouri[18]. There, a community microgrid was established after a tornado destroyed the town’s electricity infrastructure. It is powered by wind and solar and provides stable and reliable energy for the community, even during times of extreme weather.

Hurricane Maria, which devastated Puerto Rico in 2017, serves as a stark reminder of the importance of energy independence and resilience. It caused widespread destruction to the island’s energy infrastructure and left residents without power for months. In the aftermath of the storm, many communities on the island have turned to microgrids[19] as a solution to their energy needs.

As part of its recovery following Hurricane Maria, the Puerto Rican town of Adjuntas is installing solar-based microgrids.

Cost effectiveness and social acceptability

Our research[20] shows that microgrids, both grid-connected and off-grid, can be cost effective when optimised. In Aotearoa New Zealand, they can be on par or even more cost effective than traditional power.

Our case studies from Aotea Great Barrier Island[21], Rakiura Stewart Island[22] and the town of Ohakune[23] demonstrate this.

The implementation of microgrids and P2P energy systems in these areas has the potential to improve energy resilience and save communities money in their electricity bills.

The social desirability and acceptability of these technologies are crucial factors and will determine their success and widespread adoption. Public perception can sometimes be a barrier to their implementation[24].

Read more: Long power outages after disasters aren't inevitable – but to avoid them, utilities need to think differently[25]

For example, microgrids often require significant amounts of land for the installation of renewable energy sources, such as solar panels or wind turbines. However, some communities may resist the development of these projects due to concerns over land use[26].

The visual impact[27] on the surrounding area or the potential disruption to wildlife habitats[28] can also be reasons for resistance.

In these cases, it is important for project developers and local authorities to engage with communities. They need to address their concerns and promote a greater understanding of these technologies and their benefits to build support for these projects.

Demonstration projects can also showcase the capabilities and benefits of microgrids and P2P energy solutions. Involving the local community in the development and ownership can increase their social acceptability.

References

  1. ^ national state of emergency (www.stuff.co.nz)
  2. ^ grid emergency (www.transpower.co.nz)
  3. ^ research (www.wellingtonuniventures.nz)
  4. ^ renewables-based microgrids (www.microgridknowledge.com)
  5. ^ P2P (www.genesisenergy.co.nz)
  6. ^ Microgrids: how to keep the power on when disaster hits (theconversation.com)
  7. ^ Centralised power systems (www.epa.gov)
  8. ^ widespread power outages (www.rnz.co.nz)
  9. ^ Microgrids (powernet.co.nz)
  10. ^ CC BY-SA (creativecommons.org)
  11. ^ communities far from the main grid (www.microgridknowledge.com)
  12. ^ prone to extreme weather (www.microgridknowledge.com)
  13. ^ decentralised energy market (www.irena.org)
  14. ^ rural India (www.powerengineeringint.com)
  15. ^ sub-Saharan Africa (www.nrel.gov)
  16. ^ Brooklyn Microgrid (www.brooklyn.energy)
  17. ^ Small communities could be buying, selling and saving money on electric power right now – here’s how (theconversation.com)
  18. ^ Rock Port, Missouri (www.nrel.gov)
  19. ^ turned to microgrids (www.ornl.gov)
  20. ^ research (www.wellingtonuniventures.nz)
  21. ^ Aotea Great Barrier Island (www.newsroom.co.nz)
  22. ^ Rakiura Stewart Island (www.stuff.co.nz)
  23. ^ Ohakune (www.newsroom.co.nz)
  24. ^ barrier to their implementation (www.sciencedirect.com)
  25. ^ Long power outages after disasters aren't inevitable – but to avoid them, utilities need to think differently (theconversation.com)
  26. ^ concerns over land use (www.forbes.com)
  27. ^ visual impact (www.jstor.org)
  28. ^ potential disruption to wildlife habitats (defenders.org)

Read more https://theconversation.com/cyclone-gabrielle-how-microgrids-could-help-keep-the-power-on-during-extreme-weather-events-199665

The Times Features

Why a Garage Shed is the Perfect Addition to Your Property

The most straightforward and most wholesome extension for any property. A garage shed is a potential solution for you, whether you are looking for an additional space for storage...

Revitalising Homes Through Strategic Architectural Renewal

Residential window replacement is one of the few home improvement interventions that goes far beyond simple aesthetic upgrades. Door frames and windows constitute these vital archi...

The Benefits of Animal-Assisted Speech Therapy For Children

Speech therapy has long been a standard for supporting children’s communication and emotional development. But what happens when you introduce a furry friend into the process? Th...

The Hidden Dangers of Blocked Drains and the Ultimate Solution for a Hassle-Free Home

Drain blockages are a big hassle to every homeowner and business owner alike. Whether it is a sink in the kitchen or bathroom, a clogged toilet, or a foul smell circulating aroun...

Understanding the Dangers of Ignoring a Gas Leak

Gas leaks are silent threats lurking within both homes and workplaces. A gas leak occurs when natural gas or any other gaseous substance escapes from a pipeline or containment. T...

Can You Sell Your House Privately in Queensland? Here’s How

Selling a house privately in Queensland is entirely possible and can be a cost-effective alternative to using a real estate agent. While agents provide valuable expertise, their co...

Times Magazine

CWU Assistive Tech Hub is Changing Lives: Win a Free Rollator Walker This Easter!

🌟 Mobility. Independence. Community. All in One. This Easter, the CWU Assistive Tech Hub is pleased to support the Banyule community by giving away a rollator walker. The giveaway will take place during the Macleod Village Easter Egg Hunt & Ma...

"Eternal Nurture" by Cara Barilla: A Timeless Collection of Wisdom and Healing

Renowned Sydney-born author and educator Cara Barilla has released her latest book, Eternal Nurture, a profound collection of inspirational quotes designed to support mindfulness, emotional healing, and personal growth. With a deep commitment to ...

How AI-Driven SEO Enhancements Can Improve Headless CMS Content Visibility

Whereas SEO (search engine optimization) is critical in the digital landscape for making connections to content, much of it is still done manually keyword research, metatags, final tweaks at publication requiring a human element that takes extensiv...

Crypto Expert John Fenga Reveals How Blockchain is Revolutionising Charity

One of the most persistent challenges in the charity sector is trust. Donors often wonder whether their contributions are being used effectively or if overhead costs consume a significant portion. Traditional fundraising methods can be opaque, with...

Navigating Parenting Arrangements in Australia: A Legal Guide for Parents

Understanding Parenting Arrangements in Australia. Child custody disputes are often one of the most emotionally charged aspects of separation or divorce. Parents naturally want what is best for their children, but the legal process of determining ...

Blocky Adventures: A Minecraft Movie Celebration for Your Wrist

The Minecraft movie is almost here—and it’s time to get excited! With the film set to hit theaters on April 4, 2025, fans have a brand-new reason to celebrate. To honor the upcoming blockbuster, watchfaces.co has released a special Minecraft-inspir...

LayBy Shopping