Large Scale Generation Certificates (LGCs) are back in the spotlight across Australia. Recent price shifts have reminded businesses that renewable energy claims are not only about ambition. They are also about evidence, timing and the ability to understand how electricity is being used across a site.
For commercial buildings, industrial facilities, data centres and multi-tenancy assets, this raises a practical question. What happens when energy markets become more volatile while electricity demand keeps rising? The answer starts with better measurement.
LGC energy data is becoming part of a wider conversation about credible reporting, operational performance and energy procurement decisions. Businesses that connect their external renewable claims to internal measurement will be better placed as scrutiny increases.
Key Points
LGCs are tradeable certificates that represent one megawatt-hour of eligible renewable electricity generation under Australia’s Large-scale Renewable Energy Target.
LGC spot prices fell sharply from around $21 per MWh at the start of 2025 to around $4.60 by mid-2026, driven by oversupply and declining voluntary corporate demand.
Australian data centre electricity consumption is forecast to rise by 37.7% in 2026 and could reach 15.7 terawatt hours by 2030, placing significant new pressure on the grid.
Renewable energy certificates confirm where electricity comes from but do not reveal how efficiently a site uses it or what is driving demand at the circuit level.
Detailed sub-metering data helps facility managers, asset owners and energy consultants identify waste, abnormal loads and power quality issues that billing data alone will not show.
SATEC supplies NMI approved meters, power quality monitoring solutions and the Expertpower energy management platform to help Australian businesses build a reliable measurement foundation across commercial, industrial and multi-tenancy sites.
Why LGCs Are Getting More Attention
Under Australia’s Large-scale Renewable Energy Target, LGCs are tradeable financial certificates created for eligible large-scale renewable energy power stations. Each certificate represents one megawatt-hour of eligible renewable electricity generated or displaced by an approved power station such as a wind farm or solar farm. Liable entities surrender LGCs annually to meet their Renewable Energy Target obligations. Voluntary buyers also use them to support sustainability claims and corporate energy commitments.
LGC prices have moved dramatically in recent years. At the start of 2025, the spot price sat at around $21 per MWh. By the end of 2025, prices had fallen to a low of around $6 per MWh. By mid-June 2026, the spot price was sitting at approximately $4.60. The price decline reflects an oversupply of certificates driven largely by strong renewable capacity growth and by a significant fall in voluntary corporate demand.
For most energy users, the key point is not whether they should try to predict certificate prices. Most businesses are not trading desks. The real issue is that renewable energy claims are becoming more visible and more scrutinised. Customers, investors, tenants and boards increasingly want to know whether energy claims are backed by reliable information. That is where LGC energy data becomes relevant. It is not just about the certificate market. It is about connecting external claims with internal measurement.
Load Growth Is Changing the Energy Conversation
Electricity demand is rising across many parts of the Australian economy. Data centres are the most prominent example. Australian data centre electricity consumption is forecast to rise 37.7% in 2026 to 6.2 terawatt hours. By 2030, that figure is expected to reach 15.7 terawatt hours. Much of this growth is being driven by artificial intelligence workloads, which place significant pressure on both power networks and cooling systems.
This growth makes basic energy reporting less useful. A quarterly bill or a single main meter reading may show total consumption. It will not explain what is driving demand. It will not show whether overnight loads are creeping upward. It will not identify whether one tenant, process or plant room is placing disproportionate pressure on the system. And it will not reveal power quality issues that could affect equipment life or operational reliability.
As load growth continues, businesses need more than headline consumption figures. They need data that helps them understand patterns, peaks, risks and emerging opportunities.
Certificates Do Not Replace Site Visibility
Renewable certificates can support a claim about energy sourcing. They do not explain how efficiently a building uses electricity. They do not identify which floor, tenant, circuit or asset is creating demand. They do not show whether a site has the capacity for new loads or whether power quality issues are affecting day-to-day operations.
A business can hold certificates and still have poor visibility of its own energy performance. It can report a renewable energy position while missing avoidable waste on site. It can plan electrification without fully understanding its current demand profile.
Better metering closes that gap. It gives building owners, facility managers and energy consultants the information needed to make practical decisions. It turns energy from a billing line item into an operational data set.
What Better Energy Data Should Show
Useful energy data should be detailed enough to support action. It should show when energy is being used, where it is being used and how usage changes over time. It should help users compare normal operation with abnormal behaviour.
A site may discover that overnight consumption is higher than expected. Another may find that peak demand is being driven by a short daily event. A multi-tenancy building may need clearer allocation of usage across tenants. An industrial site may need to monitor power quality to protect sensitive equipment and reduce the risk of disruption.
This is where LGC energy data and site-level metering data start to meet. External energy claims require confidence. Internal energy management requires visibility. Both depend on reliable measurement.
A better data foundation can help businesses prepare for more complex energy conversations. It can support procurement decisions, tenant reporting, cost allocation and asset planning.
A Comparison: Certificates Versus Site Metering
The table below illustrates how LGCs and site-level energy metering serve different but complementary functions for Australian businesses.
| Feature | LGCs (Renewable Certificates) | Site-Level Energy Metering |
|---|---|---|
| Primary purpose | Demonstrate renewable energy sourcing | Measure and manage on-site energy use |
| What it shows | MWh of renewable generation matched to consumption | Circuit-level demand, load patterns and power quality |
| Billing application | Supports renewable energy claims and LRET compliance | NMI approved meters support tenant and sub-metering billing |
| Operational insight | None | Identifies waste, peaks, anomalies and power quality issues |
| Relevant for tenants | Indirect (via landlord or PPA) | Direct allocation and sub-billing of actual usage |
| Power quality data | Not applicable | Available with appropriate power quality meters |
| Software integration | Via energy retailers or brokers | Via platforms such as Expertpower |
| Australian compliance | Governed by the Clean Energy Regulator and LRET | Governed by NMI M 6-1 for billing applications |
How SATEC Provides the Solution
SATEC supplies advanced measurement solutions for commercial, industrial and multi-tenancy environments across Australia. The product range is designed to capture the detailed electrical data that businesses need as energy management becomes more complex.
For sites that require accurate measurement for billing applications, NMI approved meters from SATEC include the EM133-XM DIN rail smart energy meter and the BFM136 multi-circuit energy monitor. The BFM136 multi-circuit energy monitor has NMI M 6-1 pattern approval in Australia, making it particularly suited to multi-tenancy buildings and embedded networks where multiple circuits need to be monitored from a single compact device. This is useful in retrofit situations where switchboard space is limited.
Power quality monitoring is another area of strength. As sites add solar systems, batteries, EV chargers and sensitive equipment, the quality and stability of supply matters as much as the volume of consumption. Products such as the PM180 power quality analyser and the eXpertPRO PM335 and EM235 power quality analysers are designed to monitor the electrical parameters that can affect equipment performance and operational reliability.
Expertpower adds the software layer. It helps turn metering data into usable insight so teams can view, compare and manage energy performance across circuits, tenants or multiple sites. That makes it easier to move from raw meter readings to informed operational decisions. SATEC’s role is not to replace energy procurement advice or certificate market expertise. It is to provide the measurement infrastructure that supports clearer decisions.
When businesses have reliable data from the site level up, they are better placed to understand demand, manage risk and support credible energy strategies.
Better Data Makes Energy Strategy More Credible
The renewed focus on LGCs is a reminder that renewable energy claims do not exist in isolation. They sit within a wider system of procurement, reporting, operations and infrastructure planning. As electricity demand grows, that system becomes harder to manage without detailed data.
Better energy data gives each stakeholder a clearer starting point. Facility managers can identify waste and abnormal loads. Asset owners can plan upgrades with greater confidence. Sustainability teams can align external claims with measurable information. Consultants can make better recommendations based on real site behaviour.
LGC markets may rise or fall. Demand from data centres and other large users will continue to reshape the Australian energy landscape. Policy settings will keep evolving. What will not change is the need for accurate measurement at the site level.
Businesses that invest in better metering now will be better prepared for that future. They will have the data to understand their own load growth, assess their operational performance and support more credible energy conversations.
FAQs - LGCs, Load Growth and the Case for Better Energy Data
What is an LGC and how does it relate to my business’s energy use?
An LGC (Large Scale Generation Certificate) represents one megawatt-hour of eligible renewable electricity generated under Australia’s Large-scale Renewable Energy Target. Businesses can surrender or retire LGCs to support renewable energy claims but holding certificates does not provide visibility into how electricity is actually being used on site.
Why have LGC prices fallen so sharply in Australia?
LGC prices declined from around $21 per MWh at the start of 2025 to approximately $4.60 by mid-2026, driven by an oversupply of certificates and a significant drop in voluntary corporate demand from large organisations. The Clean Energy Regulator has noted that renewable capacity growth has outpaced both mandatory and voluntary demand.
Can a business hold LGCs and still have poor energy management on site?
Yes. Certificates confirm the source of electricity but reveal nothing about how efficiently a site uses it. A business can report a strong renewable energy position while still having undetected waste, unexplained peak demand or power quality issues affecting equipment performance.
What type of meter is required for tenant billing in an Australian embedded network?
Any meter used for billing or trade measurement in an Australian embedded network must hold NMI pattern approval under the NMI M 6-1 standard, a requirement that has applied in Australia since January 2013. Meters without this approval are not suitable for billing applications.
