renewables

  • Energy storage and flexibility

    Out with the old, in with the new: T-4 Capacity Market clears at record price

    On 21 February, the T-4 Capacity Market auction for Delivery Year 2026-27 cleared at a record high price of £63.00/kW/year, procuring 43,000.955MW of capacity. In this week’s 'Chart of the week', we explore the key takeaways from the auction.

  • Commercial and market outlook

    Australia’s hydrogen success is tied to energy market policies

    According to South Australia’s Hydrogen Power Plant study, the global demand for hydrogen is projected to reach 650 megatons in 2050, with a potential export market of $300b per year. In this market, Australia is well placed for renewable hydrogen production with a considerable penetration of variable renewable energy (VRE)....

  • Energy storage and flexibility

    Christmas comes early for South Australian battery owners

    The choice of Chart of the week was an easy one following Saturday’s storms that ‘reined’ down on South Australia. The state became isolated from the rest of the National Electricity Market after one of ElectraNet’s pylons, supporting the interconnector between SA and Victoria, was knocked down[1].   The consequence...

  • Energy storage and flexibility

    State of Storage: Investigating battery profit for NEM states

    It has been an interesting year for Australian energy markets, facing unprecedentedly high energy prices, coal outages, and market suspension. In today’s Chart of the week, we will investigate the impact a BESS would have made during FY 2022. Using Cornwall Insight Australia’s battery simulation model, we simulated a stand-alone...

  • Power and gas networks

    The Quest of the Ring: Will the Sydney Ring of Power unlock commercial viability of renewables?

    With the development of Renewable Energy Zones (REZs), the need for transmission augmentation arises to unlock the transfer of energy from Renewable Energy Zones to major load centres. This may subsequently increase the commercial viability of renewable generators within the Renewable Energy Zones, for example, by reducing plants’ technical curtailments...

  • Commercial and market outlook

    Renewables share steadily increasing in European heating and cooling

    In this week’s ‘Chart of the Week’, we look at statistics published by Eurostat, the statistical office of the EU, showing that the share of renewables in heating and cooling is steadily growing.

  • Energy storage and flexibility

    Seasonal frequency in the NEM: is VRE continuing to drive it?

    Frequency control remains a challenge for AEMO. New PFR (primary frequency response) provisions established in March 2020 will help AEMO to control frequency more efficiently. However, is it yet to be seen how market participants will be incentivised to participate in PFR market. In light of the rapid growth of...

  • Commercial and market outlook

    Is the NEM going off schedule?

    Is the NEM getting harder to control with rising variable renewable generation and distributed photovoltaic growth? AEMO’s balancing of scheduled supply is critical to ensure the system remains stable and wholesale prices work efficiently. This Chart of the week briefly examines if the NEM is “on schedule” to meet this...

  • Commercial and market outlook

    Round and round it goes, where the loop flow stops, nobody knows

    A by-product of how market boundaries are defined, loop flows are phenomena in electricity markets that manifest as flows going in one direction across parts of a network loop and goes the opposite way in other parts of the same network loop. Regardless of whether the market design is nodal...

  • Commercial and market outlook

    Residues of negative pricing

    Building on the last two Charts of the week, the rise in the frequency of negative wholesale energy prices in the NEM has impacts beyond the price of electricity. In this Chart of the week, we take a closer look at the impact of negative pricing on Inter-Regional Settlement Residue...

  • Commercial and market outlook

    Duck, duck, goose: bigger bellies and longer necks

    The last few months have been littered with record low demand in the system, highlighting that the ducks of the NEM continue to arch their backs lower and lower.  In this Chart of the week, we zoom out on the changes to scheduled demand and in the variability of the lowest and...

  • Energy storage and flexibility

    How deep is your love? A look at the depth of negative prices in South Australia

    The recent rise in the frequency of negative wholesale energy prices in the NEM has captured the attention of many market observers. A less-discussed aspect is how deep these negative prices run. How much additional demand could be added to the system during the negative-priced dispatch intervals before the prices...

  • Commercial and market outlook

    FCAS not dead?

    A couple of months ago, AEMO released the final Inputs, Assumptions, and Scenarios Report (IASR) that contains the basis of all planning publications for the next few years.  The changing electricity consumption and generation pattern in the NEM is introducing new challenges to the operation of the energy system; minimum and...

  • Energy storage and flexibility

    Houston, we have a transmission problem

    Variable Renewable Energy is making tremendous strides towards the predominant energy source in the NEM, but its voracious capital intensity is over-running existing transmission capacity. Consumers are faced with a $3.5bn transmission build cost over the next 20 years, which to return value relies heavily on the emergence of grid...

  • Commercial and market outlook

    The Victorian story of gas demand segments

    The Declared Wholesale Gas Market (DWGM) prices in Victoria have been on a rising trend since the start-up of LNG exports in 2015. Is this trend sustainable, given the Gas Statement of Opportunities (GSOO) forecasts an improved gas supply outlook with the new Port Kembla Gas Terminal (PKGT) expected to...

  • Energy storage and flexibility

    Why invest in batteries?

    Batteries currently participate in the wholesale arbitrage and FCAS services (contingency and regulation). However, a lack of clarity in policies and regulations specific to batteries create uncertainties for investors. The key challenge is to determine and capture all possible battery value streams (current and future services). Stacked value streams increase...

  • Energy storage and flexibility

    Minimum demand projections in Victoria

    The surplus rooftop solar provides an enormous opportunity for additional flexible load, where this can be optimised during the day. Electric Vehicles acting at a distributed level (exactly where the surplus is arising) provide the perfect solution if utilised in conjunction with smart metering to assist in mitigating these issues....

  • Energy storage and flexibility

    Spring is here, where are you?

    With the onset of spring in September, we typically observe a drop in demand in NEM. However, this year the decline in demand has seen NEM and multiple states breaking several records for minimum operational demand in the middle of the day, which is largely driven by solar penetration in...

  • Home supply and services

    Supplier exits predicted to trigger Renewable Obligation mutualisation

    Over the past few weeks, the energy market has been under the microscope as high wholesale prices and a wave of suppliers exiting the market has hit the headlines. Amid challenging wholesale market conditions for suppliers, they are now also facing the compliance deadlines for 2020-21 of the Renewables Obligation...

  • Energy storage and flexibility

    Dispatchable capacity – it’s a marathon AND a sprint

    For now, incumbent generators (like coal) will need to meet the NEM ramping requirements. Provided that coal remains online with the current dispatchable capacity, there is likely to be sufficient capacity in reserve to meet the ramping requirements of the system albeit in an incremental way (every five minutes). However,...

  • Energy storage and flexibility

    I can be your hydro baby, I can ramp away the pain

    The recent suite of energy market reforms proposed by the Energy Security Board (ESB) has prompted much discussion about the type of capacity that needs to be procured in a future NEM that seems certain to have a very high penetration of variable renewable energy (VRE). In this Chart of...

  • Energy storage and flexibility

    A tale of two causes: curtailment as renewable records break

    Renewable generation records continue to fall in the NEM, with several dropping in succession over the last week. As the amount of renewable generation in the NEM increases (led by a world-leading uptake of rooftop solar), as does the amount of curtailment. As curtailment is essentially wasted energy, minimising it...

  • Low carbon generation

    CfD Allocation Round 4: how much capacity might we expect?

    On 13 September, BEIS published the draft budget notice and draft Allocation Framework for Allocation Round 4 (AR4) of the Contracts for Difference (CfD) scheme, scheduled to open in December 2021. BEIS set out a total draft budget of £265mn (in 2011-12 money) for AR4, meaning that total spend in...

  • Low carbon generation

    A podium finish: ROC banking in CP19

    The Renewables Obligation (RO) Compliance Period (CP) 19 (2020-21) has been unusual in the scheme’s history in light of the impact of the COVID-19 pandemic. As we are in the so-called “compliance season” for CP19, we reflect on the last year and the importance that Renewable Obligation Certificates (ROC) “banking”...

  • Energy storage and flexibility

    Feeding the future NEM – Eat some now. Save some for later.

    As the NEM continues to transition towards increased penetration of variable renewable energy (VRE), the use of the word ‘curtailment’ has also increased. While curtailments have historically been a natural part of market outcomes (i.e. generators withholding capacity at higher price points), the increased prevalence of curtailment of VRE is...

  • Power and gas networks

    The rise of wholesale gas prices … the saga

    It is certainly not a standard summer season for gas prices. Normally with demand for gas typically lower, we should see prices at the lowest levels of the calendar year. However, Summer 2021 gas prices are currently seeing bullish momentum with price points that we would expect to see in winter. In this ‘Chart of...

  • Business supply and services

    SME’s interest in renewables driven by corporates

    Despite the challenging year for businesses, we recorded growing interest in renewable electricity amongst businesses and Third Party Intermediaries (TPIs) according to our TPI Satisfaction Survey for 2020. This has been a focus for Industrial and Commercial's (I&Cs) over the last two years driven by corporate social responsibility goals, particularly...

  • Low carbon generation

    The outlook for private wire business models

    Interest in private wire arrangements has grown in recent years, with the benefits of network and policy cost avoidance becoming a key incentive for generators to look at this development approach. In this Chart of the Week, we look at the expected evolution of cost avoidance over the next five...

  • Low carbon generation

    Australian Chart of the week | VRE pays more as PFR helps reduce coal FCAS costs

    In our previous ‘Chart of the week’ in November 2020, we reviewed the increasing percentage of causer pays cost that solar generators bear due to their generation profiles and how this results in them paying significantly more of the causer pays cost as a ratio of the generation they provide. More than...

  • Low carbon generation

    Price trends for Renewables Gas Guarantees of Origins

    In May 2021 we published the findings from our latest quarterly Green Certificates Survey. The survey is designed to provide greater market transparency for Renewable Energy Guarantees of Origin (REGO), Continental Guarantees of Origin (GoOs) and Renewable Gas Guarantees of Origin (RGGO) certificate markets. It provides aggregated views on certificate...