All businesses need electricity. All people in a modern society like ours need electricity. The trouble lies in finding balance between combatting climate change and generating enough electricity to sustain our population.
We all know and understand the importance of decarbonizing given the ominous challenge posed to us by climate change globally. But, New Zealand is a small, remote country which only accounts for 1/15th of 1% of the world’s population of 7.5 billion.
New Zealand’s electricity and natural gas markets are inextricably inter-linked. Electricity and gas compete as alternative energy sources, but rely on each other for production. Electricity generation is the second biggest user of natural gas after methanol production by Methanex. Gas is the second biggest source of electricity generation after hydroelectricity.
With this intricate dependence on one another, the effective management of our national energy strategy (including electricity and gas etc) is critically important to our continuing economic health and hence to the well-being of all 5 million kiwis.
What impact does prohibiting natural gas exploration have on New Zealand’s energy supply?
The outright prohibition three years ago of all new offshore oil and gas exploration, is having a profoundly negative impact on the natural gas sector and hence on the health of the electricity sector.
No matter how well intentioned this original decision was, it was not thought through properly at the time. The recent apparent softening of the Government’s stance on the role of natural gas as a transition energy source on the road to 100% renewability is, however, to be commended.
Coal-based electricity generation in 2020 was the highest for a decade.
It’s unfortunate that, as a result of these policies, coal-based electricity generation in 2020 was the highest for a decade. This coincided with the lowest gas-based electricity generation for nine years.
Given that coal emits +/- 1.9 times more CO2, on a gigajoule-for-gigajoule basis than natural gas, this is an environmental step backwards. In this regard, coal imports of +/- 1 million tonnes from Indonesia in 2020 are currently on course to triple in 2021 as we understand it.
What other factors impact New Zealand’s energy mix?
The negative impacts of the above prohibition have unfortunately been compounded by various other negative electricity supply and demand factors since then.
These factors have included:
Rebounding electricity demand following the Global Financial Crisis in 2008.
Back-to-back very dry summers in 2019/20 and 2020/21.
The retirement of thermal powers stations like Otahuhu B and Southdown.
The inability of new renewable power stations to meet the combined challenge posed by growing electricity demand and reduced thermal generation.
Gas and geothermal energy supply in New Zealand is struggling
Pohokura has been our biggest natural gas field for some years. During the past two years however, production has fallen sharply for unspecified technical reasons. This decline in gas production has reduced gas supplies available both for gas users and for electricity generation.
The prohibition of all new offshore oil and gas exploration, has also meant that there will be no offshore oil rigs available in NZ waters until 2022, at the earliest, to identify let alone resolve the ongoing production problems at Pohokura.
Other gas supply options have been constrained in the longer term by the non-renewal by the Government of existing offshore field permits for undeveloped fields, once their initial term had expired. Previously, successive Government’s lead by both major parties renewed these permits unless there was a compelling specific reason not to.
Power companies are passing costs on to businesses
Seriously damaged gas industry morale has also resulted in a combination of reduced/delayed/cancelled capex in existing gas fields.
Competition has essentially collapsed at the big end of the gas market.
The profound uncertainty surrounding the shorter term, let alone longer term, future of the natural gas industry has already resulted in Contact Energy vacating the time of use (TOU) part of the gas market as TOU agreements covering supply to larger customers expire. Two other gas retailers have also declined to quote for supply to various existing TOU customers.
We are also well aware of other very large TOU gas users (not our clients) who have to use natural gas and have been forced onto punitive spot market-related gas pricing. Major electricity-users like Whakatane Board Mills have also had a huge question-mark over their future due to huge gas-related electricity price hikes.
There is still some limited competition in the non-TOU part of the market (impacting smaller customers), albeit at much higher prices. To all intents and purposes, competition has essentially collapsed at the big end of the gas market.
What would Total Utilities recommend?
Looking to the future, New Zealand must formulate an integrated supply/demand energy strategy covering the transition period until 100% renewable energy is achieved in practice. Much like the cross-party Superannuation Accord in the 1990’s, we need a similar cross-party accord now in this vitally important area.
As such, the Government should:
Reverse its previous ill-advised decision not to extend existing gas field permits on undeveloped fields.
Greatly extend the scope of the existing EECA GIDI Fund/ETA initiatives.
Extend the separate Genesis Energy decarbonisation funding initiative to include Mercury and Meridian too.
To conclude, the appetite for future investment in the gas infrastructure is key to improving certainty in the market. Not only does it send signals to the sellers of natural gas but also to major users who are often multinational organisations. If it becomes more apparent that investment will be very limited, these organisations could very well leave NZ prematurely, obviously impacting employment, business activity and tax revenue.
Business and media enquiries can be made to Total Utilities.
Back in the 1950’s when I was born, the global population was 2.75 billion and it had taken roughly 2 million years to reach this figure. During my lifetime, the world’s population has nearly tripled to 7.5 billion.
This population explosion has helped to ruin pristine wilderness areas from the Amazon rain forest to Africa and Asia and triggered growing competition for resources, including water, to sustain our ever-growing numbers!
Human beings and the animals we eat now dominate the planet’s landscape to an unprecedented degree.
NZ may only have five million people, but we are not immune to environmental degradation. Our environment has also suffered from air and water pollution, not to mention the introduction of invasive species since our country was first settled.
As with the rest of the world, we have been hard hit by the Covid-19 pandemic.
So far, our Government has done a good job in my view in handling the health aspects of the crisis.
The economy though has already been bashed in 2020 and whoever wins the forthcoming General Election is going to be faced by the worst economic pandemic since the Great Depression of the early 1930’s.
This will pose a massive challenge to us all.
In the long haul, climate change is the more important issue.
In the shorter term though, common-sense dictates that all Governments internationally need to focus on avoiding any repetition of the massive long-term unemployment of the 1930’s which triggered the ‘beggar my neighbour’ economic policies followed by many Governments and hence helped pave the way for the Second World War.
So, what does this mean for sustainability issues?
Should they be put on the back burner for the next few years while we focus on the economy or should we continue to press ahead and take action?
When all is said and done, sustainability should be about protecting the environment both nationally and globally.
Ultimately, we will sink or swim together on this planet of ours. As such, the environment includes the air we breathe and the water we drink. That includes the rivers, lakes, seas, oceans and forests that we take for granted.
Like most of you, I have enjoyed watching David Attenborough’s wildlife documentaries. In my case since the early 1960’s. His documentaries have done more to publicise the growing plight of wildlife and the natural environment as a whole, than anyone else.
https://www.youtube.com/watch?v=T5bAeqX9PCI
Sadly, they tell an increasingly gloomy tale of habitat destruction, pollution and species extinctions.
So, what does this mean for NZ? What should our Government do to reverse the tide of environmental degradation. Available options include:
Manufactured goods – where humanly possible they should be made from 100% renewable materials.
Packaging – suppliers (not customers) should be made 100% responsible for disposing of packaging material, including polystyrene!
Glass bottles – reintroduce refundable bottle deposits on all glass bottles nationally and replace plastic bottles with glass bottles.
Plastics – waste recyclers to have uniform standards nationally regarding what plastics are recycled and what go to landfill. If some types of plastic can’t be recycled in NZ, their use should either be banned outright or a new national facility should be set up to process them. There are currently big regional differences regarding what plastics can and can’t be recycled.
Coal vs natural gas – given that the rate of carbon emissions associated with coal is nearly twice as high as they are for natural gas, recognition should be given (as it is internationally) of the important role that natural gas/LPG will play for the next 20 years as a transition energy source on the road to 100% renewability and carbon zero.
Transportation – the idealogues on the ‘left’ and the ‘right’ of politics are both right and wrong when it comes to transport policy. The left is correct in believing that we need much better integrated public transport networks (road/light rail/car parking) in the main centres. The right is correct that whether we like it or not, Kiwis like the freedom that comes from having your own vehicle. Hence, we need to sort out and future proof the road network in the major centres and also upgrade the roads in long neglected areas like the Far North. Clearly it makes good sense to transition to electric vehicles, especially given that the carbon emissions from petrol and diesel vehicles are far higher that carbon emissions from electricity generation.
Local manufacture vs imports – again within reasonable bounds, I am a strong believer inbuying NZ manufactured goods versus importing from the usual source. By doing this, we are using suppliers who are likely to have a greater environmental conscience. Also, the carbon footprint associated with shipping the goods to NZ is avoided. We also provide work for our fellow citizens and keep their income circulating in our local economy. Similar arguments apply to our choice of holiday destination, even when Covid-19 international travel restrictions are finally lifted!
Housing – make it mandatory for all new houses nationally to have both solar power units and water tanks installed from day one. Also, the All of Government (AOG) procurement process could be utilised to encourage local manufacture in both areas and financing options for both.
We are facing unprecedented challenges on a number of fronts and our Government needs to act accordingly in a politically bi-partisan way!
Most of us now agree that climate change is all too real and we therefore all need to do something about it, sooner rather than later.
However, some impulsive political changes in the past 18 months, like unilaterally banning all new offshore oil and gas exploration, can be environmentally counter-productive. For example, NZ coal usage in 2018 was the highest for a decade! Undoubtedly, this is a decision our political leaders didnt want to see happen.
Wood biomass however is a great renewable resource and therefore represents an important and growing energy solution.
At this time, NZ needs a genuine cross-party accord on the best way to tackle climate change, much like the superannuation accord back in the 1990’s. The superannuation accord worked well and served to de-politicise a potentially highly contentious area. A similar approach is needed now.
Richard Gardiner – Managing Director of Total Utilities
The following was a recent press release from Azwood Energy. biomass
Azwood Energy welcomes the Interim Climate Change Committee’s “Accelerated Electrification” report, which investigated the potential of electricity in greenhouse gas reduction. Azwood Energy agrees with the Committee’s view: “The challenge is clear – it is not so much about reducing emissions from the generation of electricity in a narrow sense, but it is about using low or zero-emissions energy to fuel the economy.”[1]
Whilst we find its investigation into electrifying our vehicle fleet commendable, we question whether the Committee’s reliance on the wholesale electrification of process heat is an outcome that truly promotes carbon neutrality and greenhouse gas emission reduction.
Azwood Energy is of the view that the increased utilization of woody biomass, a renewable, carbon-neutral energy source, in the transition from fossil fuel use in process heat makes sense, both economically and environmentally.
Energy expert, Dr. Martin Atkins,[2] has noted that “Biomass will play a vital role in providing process heat, particularly in producing process steam for medium to high process temperature demands. Biomass will be the lowest cost fuel switching option by a large margin when compared to electricity.”[3] He notes that complete electrification of process heat demand is not economically feasible.
Process heat needs are highly-situationally dependent and site-specific. However, from an operational and Capex perspective, high temperature hot water and steam requirements are best met using biomass as a fuel source in place of coal or diesel.
It seems big players in the industry agree. A video was released for the Climate Leaders Coalition showcasing Fonterra Brightwater’s switch to co-firing with biomass.[4] Speaking, in May, at the New Zealand Minerals Forum, Tony Oosten, Fonterra’s Energy Manager, noted that capital outlay and fuel costs for new wood versus coal boilers are now the same, and the viability of wood fuel has been proven in their Brightwater pilot.[5]
He explained Fonterra’s cheese plants use lower temperatures and can be run on electric technologies. Oosten says milk-drying plants prove more complex, (given their mixed high-heat requirements), but indicated new plants will be designed to meet their low heat energy requirements with electricity, allowing biomass-fueled boilers to be used for higher temperature requirements. Oosten says electrode boilers may be used for peak loads as they are more responsive than wood boilers, but they are twice as expensive to run as current systems.
Oosten raised issues of wood fuel supply, however, stating, based on the locally available supply in each region, Fonterra could access 15 megawatts of wood into each of its 32 manufacturing sites. Given Fonterra has now put a stop to installing any new coal boilers or increasing capacity to burn coal,[6] their energy requirements, 40% of which is currently met by coal, are set to supercharge demand for wood fuel.
More recently, French multinational food-products corporation Danone announced they would invest $40 million to convert their Balclutha milk drying plant to 100% biomass, cutting CO2 emissions by 96% or 20,000 tones per year.[7]
Brook Brewerton, General Manager of Azwood Energy, welcomes this, stating that the current constraint in demand is at the heart of stated perceptions of constrained supply. He says there is ample forestry residue left unutilized on hillsides and the commercially unproven fixation on industrial electrification is hampering the switch to biomass fuel and confusing the low-emission messaging.
Azwood Energy sees key areas of this report’s findings as an exacerbation of the problem. The ICCC should encourage thermal heat plant users to firstly reduce energy demand, secondly reduce the low-temperature heat demand on boilers and then encourage the feasibility of fuel switching to biomass for high-temperature water and steam.
Biomass for high-temperature water and steam is the most cost-effective option, at about one-quarter of the cost to produce steam, when compared with electricity, and does not require a huge investment in electrical networks and infrastructure.
Until increased demand ramps up the supply chain logistics, however, the perception of scarcity will continue. Azwood Energy is poised to scale their operations at viable sites across New Zealand and has been commercially supplying biomass to large heat plant systems for almost 20 years.
Scion has reported that there is sufficient biomass in New Zealand to replace in the order of 15PJ of coal consumption with its associated GHG emissions reductions.[8] The Bioenergy Association states there is potentially enough biomass available from plantation forestry to replace 60% of coal used in existing heat plant over the next 30 years. It notes that the biomass fuel market is under-developed because the current demand for wood fuel is low, but that “there are enough suppliers with commercial and technical capability to expand supply if demand for wood fuel increases consistently and in an orderly manner”. [9]
Brewerton notes that the recoverability of wood energy in the scenarios underpinning the Scion and Bioenergy Association data is conservative, and not based on 17 years of residue recovery and methodology improvement. “There is far more out there if the market is willing to pay for it. Recoverability modeling is on the low side, but it is a good place to start.”
Azwood Energy eagerly awaits the PHiNZ report due to be released later this year by MBIE, which addresses process heat directly. It is hoped the regulatory and policy settings changes it advocates will provide the priority for wood fuel it deserves, as a proven, economically viable local energy source with both up and downstream environmental benefits.
[2] Dr Martin Atkins, Senior Research Fellow with Waikato University’s Energy Research Group, has advised some of New Zealand’s most iconic companies on their path towards lower emissions, from dairy giant, Fonterra, to pulp and paper processor, Oji.
Like the one third of a million Kiwis who were born in the UK, our family was drawn here in the first place by the beauty of New Zealand, its down to earth friendly culture and reputation for freedom and tolerance for all.
26 years later we all feel the same way! Our business has staff born in New Zealand, Brazil and the UK. We are all united by being Kiwis!
The barbaric mass murder of innocent Muslims in Christchurch last Friday does not define us. It is the exception to the rule not the rule itself. This atrocity was committed by a pathetic misfit who has no place in our society.
There are 4.8 million of us and we all need to stand together to protect all that is good in our country and way of life.
Differences of religion, ethnicity and political views are neither here nor there in the wider scheme of things. We all need to continue to focus on what values unite us rather than our superficial differences. We all want the best for our families and for the country as a whole.
Live and let live for all.
The following was sent to me on Monday from David Goadby, also from the UK. I felt compelled to share this with our wider community as it echos the comments I have made above. In no way is this an advertisement for energyclubnz.
The tragic events of last Friday have shocked not only the country but also the world. In such a small country like New Zealand it is likely that a lot of our members will have been impacted in some way, even if it is questioning whether the country we call home is actually as safe as we once considered.
The energyclubnz team is based in communities across New Zealand including Christchurch. We pride ourselves on the fact that our small, passionate team are a diverse bunch from many backgrounds, religions and nationalities. Most importantly we all consider New Zealand to be our home.
Our thoughts and prayers are with the families who have been directly impacted.
As a business whose core values include ‘doing the right thing’, myself and the team don’t feel it is right to make a profit from such a dark day in New Zealand’s history. Because of this, we will be donating all of our club fees from last Friday directly to Christchurch St John’s Ambulance who have given immense support during this tragedy.
The energyclubnz team is doing this because we care about our community and the country we all live in.
If you would like to donate to St John’s Ambulance to support their First Response Units click here.
My thoughts are with all of New Zealand and I hope that we can pull together to treasure the diversity of our beautiful country – more than we’ve ever done before. Yours sincerely,
During the recent two-day EMANZ Conference that I attended in Auckland with our Energy Manager, Tânia Coelho, I was struck by the surge of genuine enthusiasm for and commitment to renewable energy from the diverse group of Energy Managers and others who attended.
In this regard, our country is in the fortunate position that 85% of our electricity supply already comes from renewable energy, mainly hydro-electricity, geothermal and wind-generation based.
Successive National and Labour Coalition Governments have made a strong and binding commitment to New Zealand meeting its global carbon emission reduction obligations.
To achieve these commitments in practice, New Zealand will need a sustained and integrated programme, to utilise rapidly evolving technology in this area.
The following guest post by James Flexman, Wholesale Markets Manager, Mercury highlights some of the excellent work in the inter-related areas of solar power and battery storage, that their company is championing.
Innovative Battery Technology Has Potential to Disrupt Fundamental Aspect of Electricity Market
The crazy thing about the electricity market, the thing that sets it apart from almost all other markets, is its immediacy. Electrons are the ultimate NOW product. They’re right here, right now, turn on the switch, see the light.
New Zealand’s sophisticated spot market and all its intricacies have been developed to work with electricity’s time-bound quirk of physics and deliver reliable, affordable and mostly renewable electricity to Kiwi homes and businesses.
But now this non-negotiable is being challenged. There’s a ‘disruptive technology’ on the scene that, like a kind of Timelord, has the potential to substantially diminish the impact of time and timing on the generation, dispatch and ultimate use of electricity. We’re talking about the exciting new opportunity created by super-batteries that can charge up with electricity from the grid and store it, before being re-dispatched into the electricity market.
Grid-Connected Battery Research & Development
Last week Mercury launched its own 1MW/2MWh battery storage facility at our R&D centre in South Auckland. For context 2MWh of electricity could power 400 homes for a winter evening peak for 2 hours. On its own, it’s not going to change the world and it’s also definitely not for the short-term gain. The rate of return based on trading 2MWh of electricity in and out of the national grid means it would take many years to break even on the $3 million investment.
Being directly connected to the grid, and able to send energy into the market like a little 1MW power station makes this battery a Kiwi first. And there’s potential for much more.
So what are we expecting in the medium to long-term from this pilot?
The clue is in where the battery has been installed – in Mercury’s R&D Centre in South Auckland. For us, it’s all about the ‘R’ part of ‘R&D centre’: Research. And at a time when the Government is calling for greater investment in R&D in this country, I’d like to do a quick shout-out celebrating the constant ongoing investment in R&D undertaken by Kiwi businesses every day of the week.
The battery is a pilot, a toe in the water, part of the New Zealand electricity market’s ongoing exploration of battery storage as the technology evolves, to work out what part batteries will play in the energy generation eco-system of this country. We believe there’s potential here. Reflecting on the first generation in New Zealand (for power, not gold processing) at Reefton, it was a 20kW generator – and look what hydro generation has grown to and its role in our economy now.
Battery Pilot a Milestone for Innovation
And it’s a true innovation. Mercury is the first company in New Zealand to install a battery system that is directly connected to Transpower’s high voltage national grid and to use the battery to participate in both the energy and reserves markets. Others have explored other ways that battery storage could interact with our current energy landscape – Counties Power together with Genesis, Vector and Alpine Energy have all commissioned batteries that can participate in the energy market, but these are also used to manage local networks better.
Being directly connected to the grid, and able to send energy into the market like a little 1MW power station makes this battery a Kiwi first. And there’s potential for much more. The storage facility is on the site of Mercury’s mothballed thermal power station next door to Transpower’s Southdown switchyard which is capable of moving over 100MW in and out of the grid.
However, despite the facility being able to accommodate battery storage of this size (similar to the much publicised South Australian battery project that Tesla committed to (and did) build within 100 days), trading at this scale will only start once the R (Research) has turned to D (Development). But once this happens, (when battery technologies develop further and costs of large-scale batteries drop), the lessons we have learnt from our investment in 2018 will give us a fast start to capitalise on this exciting opportunity.
Grid-Connected Battery Research May Lead to Paradigm Shift
There is also some other work that Mercury has been doing that will benefit us as well as all future battery traders. This work (which also involves Transpower and the Electricity Authority) is addressing current regulations that need to be adjusted to accommodate the participation of battery stored electricity in all aspects of the NZ reserves market.
The use of large-scale batteries to store energy from times of lower usage and make it available when it’s most needed could make a real difference to the way power is supplied to homes and businesses over the coming decades, particularly as populations grow. At scale, the lowest parts of the demand curve will be raised as electricity will be generated and stored in batteries and the highest peaks of demand will be offset by electricity being re-dispatched from the batteries back into the market.
In a future world, when the investment that companies like Mercury are making in R&D has led to large-scale battery storage in New Zealand, this flattening of the supply-demand curve should lead to more efficient use of current generation capacity.
We see all these future developments as great reasons for our research investment now. And we’re proud to be pioneers in this field that has so much potential to change the New Zealand energy market to everyone’s benefit.
See how the direct grid-connected battery will work in New Zealand’s energy eco-system
