Topic
LGCs, mid-scale and commercial solar
58 pages, one place. Start with the quick answers, go deeper with the articles.
In depth 17
- How to Accredit a Solar Power Station With the CERSteps to accredit a solar power station with the CER to create LGCs: registered person, application, metering, assessment, and when SRES makes it unne…
- Commercial Solar PPA Explained for Australian BusinessesHow a commercial solar PPA works in Australia: ownership, pricing and escalators, who gets the STCs or LGCs, buy versus PPA numbers and terms to check…
- Commercial Solar Rebate in Australia 2026What commercial solar rebates exist in Australia in 2026: STCs now to 1 MW from 1 October, worked values from 30 kW to 1 MW, LGCs above 1 MW, and stat…
- Commercial solar STCs: what changed at 100 kW, in dollarsA 99 kW system earns about 684 STCs at a five-year deeming period. From 1 October 2026 a 120 kW system earns STCs too. Here is the money on each side …
- How to create LGCs in the REC Registry, step by stepFrom power station accreditation to creating, transferring and selling LGCs in the REC Registry, with a worked example and the point where mid-scale s…
- Selling commercial solar with LGCs: an installer's guideHow to quote commercial solar in 2026: STCs under 100 kW, the new STC route to 1 MW from 1 October, LGCs above it, with worked certificate values and …
- LGC oversupply and 2030: what it means for pricesWhy LGC prices have fallen to roughly $6 to $9 in September 2026, how oversupply builds against a flat target.
- LGC price forecast: what drives it to 2030No one can promise an LGC price, but the drivers are clear: oversupply, the 2030 scheme end, surrender timing and corporate demand. Scenarios for gene…
- LGC price forecast 2027: three scenarios, not a numberWhat could move LGC prices in 2027: oversupply, REGO, voluntary demand, the 2030 end and mid-scale solar moving to STCs. Scenario bands and what they …
- LGC price history: from $85 to single digitsA plain history of LGC spot prices: the 2017 to 2018 peak near $85, the 2019 fall, the $40s of 2023 to 2024 and the 2025 to 2026 collapse, with what d…
- LGC price history 2020 to 2026: from $40 to single digitsHow LGC spot prices moved from the $30 to $50 range of 2020 to 2023, through the 2024 to 2025 slide, to single digits in 2026. Periods, drivers and wh…
- LGC vs STC at 100 kW: The Decision in 2026How to choose between STCs and LGCs for commercial solar around 100 kW, now that SRES extends to 1 MW from 1 October 2026. Worked 99 kW, 250 kW and br…
- LGC trading: how large-scale certificates are soldHow LGCs are created, registered and sold, what a large solar owner needs to do, and what drives the price. A practical walk-through.
- How to sell LGCs: agents, buyers and contractsHow to sell LGCs once you have created them: spot versus forward, agent versus direct, what contracts look like and how a transfer settles in the REC …
- How to Sell LGCs From a Commercial Solar SystemHow to sell LGCs from a commercial solar power station: creating certificates, buyer types, spot vs forward vs bundled deals, fees and numbers at abou…
- SRES 100 kW to 1 MW Expansion: What It MeansWhat the SRES expansion to 1 MW means for businesses: bigger upfront discounts, who qualifies, the five-year deeming, existing systems and LGC prices.
- Why are LGC prices falling? Seven causes explainedWhy LGC prices fell from above $40 to single digits: a fixed target, surplus supply, REGO, the 2030 end date and thin demand. Worked numbers on what a…
Quick answers 41
- Is a 100 kW solar system eligible for LGCs or STCs?A solar system up to 100 kW creates STCs. From 1 October 2026, solar above 100 kW up to 1 MW also creates STCs, with a fixed five-year deeming period.…
- Is behind-the-meter solar eligible for LGCs?Yes, behind-the-meter solar can create LGCs when it is accredited as a power station, but only above 1 MW now. Systems up to 100 kW create STCs, and f…
- What solar rebates are available for businesses in Australia?Business solar can earn STCs for systems up to 100 kW, and from 1 October 2026 for systems above 100 kW and up to 1 MW, which reduce the price at inst…
- Can I claim LGCs and STCs together on the same solar system?No. The same system cannot earn STCs and LGCs for the same electricity. Small-scale systems up to 100 kW create STCs upfront, systems from 100 kW to 1…
- What are the finance options for commercial solar?Businesses typically choose between paying cash, an equipment loan or chattel mortgage, a lease, or a PPA where a third party owns the system. The rig…
- LGCs for commercial solar above 100 kW: when they still applyBefore 1 October 2026, solar above 100 kW could not create STCs and the owner accredited a power station to create one LGC per megawatt hour. From tha…
- Commercial solar rebate in 2026: what has changedFor a commercial system installed in 2026, STCs are calculated on a five-year deeming period, dropping to four in 2027 and ending in 2030. Systems up …
- Commercial solar rebate in AustraliaCommercial solar in Australia is supported mainly through certificates: STCs for systems up to 100 kW and, for installs from 1 October 2026, for syste…
- Commercial solar and the 100 kW STC limitUnder the small-scale rules a system creates STCs if it is 100 kW or less and generates under 250 MWh a year. Before 1 October 2026 anything larger ha…
- How do you create LGCs?To create LGCs, the power station must be accredited with the Clean Energy Regulator, then register its generation and create one LGC per megawatt hou…
- What are large-scale generation certificates?Large-scale generation certificates are tradeable certificates created by accredited renewable power stations, one per megawatt hour. They are the com…
- What is an LGC?An LGC, or large-scale generation certificate, represents one megawatt hour of renewable electricity generated by an accredited power station. Electri…
- How often can you create LGCs: monthly, quarterly or annually?LGCs are created after the electricity is generated and metered, and must be created by 31 December of the year after generation. Within that window m…
- What fees and commissions apply to LGCs for small generators?Expect CER accreditation and per-certificate fees, metering and data costs, and a broker or trader margin or commission on the sale. With LGCs at roug…
- What does the LGC forward curve look like to 2030?At the time of writing, LGC spot is roughly $6 to $9 (September 2026) after a low near $4 in February, and forward prices to 2030 sit low because supp…
- What are the metering data requirements for LGCs?LGCs are created from metered generation. The CER expects revenue-grade meters that capture the energy generated and consumed in intervals of 30 minut…
- Who owns the LGCs under a solar PPA?It depends on the PPA. LGCs are separate from the electricity, so the contract must say who gets them. Usually the owner of the accredited power stati…
- LGC price: what drives it and where it sitsLGC spot prices have been roughly $6 to $9 in September 2026. Each LGC represents one megawatt hour of renewable generation from an accredited power s…
- LGC price today: how to find the current figureThere is no official published daily LGC price. Brokers and market reports quote it, and at the time of writing the spot range has been roughly $6 to …
- How does the LGC registry transfer and sale process work?You create LGCs in the REC Registry, agree a price with a buyer, then transfer the certificates to the buyer's registry account. Payment is normally m…
- How much LGC revenue does a 200 kW rooftop system earn, and what is payback?A 200 kW rooftop might generate roughly 260 to 300 MWh a year, so about 260 to 300 LGCs, worth roughly $1,600 to $2,700 a year at $6 to $9. Bill savin…
- LGC spot price vs forward priceThe LGC spot price is what a registered certificate is trading for today, for prompt delivery. At the time of writing it has been roughly $6 to $9 in …
- What is the LGC spot price this month?Verified LGC spot was roughly $6 to $9 in September 2026, after a low near $4 in February and about $11 at the start of Q4 2025. The market is oversup…
- LGC vs STC cash flow for solar installers: which pays faster?STCs pay at or soon after installation because the generation is deemed upfront, so they fit an installer's cash cycle. LGCs arrive after the electric…
- What is LGC surrender and retailer liability, and who pays?Electricity retailers and other liable entities must surrender enough LGCs each year to cover a set percentage of the electricity they buy. If they fa…
- Finding an LGC trader: what to look forAn LGC trader buys large-scale generation certificates from accredited power stations and sells them on to retailers. Look for transparent pricing, cl…
- LGC vs STC: what is the difference?STCs are created upfront for small systems up to 100 kW, and from 1 October 2026 for solar up to 1 MW, based on deemed generation. LGCs are created af…
- Do LGCs still exist after 2030 when the large-scale target ends?The Renewable Energy Target legislation runs to 2030 and has no scheduled extension at the time of writing, so compulsory demand for LGCs ends once th…
- What do installers need to claim STCs on mid-scale solar?The mid-scale STC rules start from 1 October 2026 with CER applications opening in mid to late November. Expect the same core duties as small-scale wo…
- How many STCs does mid-scale solar (100 kW to 1 MW) create?A mid-scale system creates STCs equal to its kW capacity multiplied by the postcode zone rating and a fixed five years. A 500 kW system in a zone 3 ci…
- How much is an LGC worth?LGCs are oversupplied and cheap in 2026, with spot roughly $6 to $9 in September 2026 after a low near $4 in February. One LGC represents one megawatt…
- How many LGCs does a 100 kW solar system create, and what are they worth?A well-sited 100 kW system generates roughly 130 to 160 MWh a year, so about 130 to 160 LGCs, worth roughly $800 to $1,400 a year at a spot of $6 to $…
- What does power station accreditation cost and how long does it take?The CER charges a power station application fee that starts at about $50 for smaller stations under 10 MW with a default or nil baseline, plus a small…
- What are the power station accreditation requirements for a solar farm?To create LGCs, a solar farm must be accredited as a power station with the Clean Energy Regulator. It needs eligible technology, site control, a comp…
- Can you claim renewable electricity under a PPA without retiring LGCs?No. Buying power from a solar farm under a PPA does not by itself give you the right to claim it as renewable. The claim comes from the certificates, …
- What is the REGO scheme and how does it work in Australia?REGO stands for Renewable Electricity Guarantee of Origin. It is a certificate under the federal Guarantee of Origin scheme that proves one megawatt-h…
- Is an LGC worthwhile for a solar farm under 1 MW?Mostly not now. Systems above 100 kW and up to 1 MW installed from 1 October 2026 create STCs with a fixed five-year deeming period, which avoids accr…
- What are solar PPA rates per kWh in Australia?Commercial solar PPA rates in Australia are commonly quoted at roughly 10 to 16 cents per kWh in 2026, usually fixed or indexed over 10 to 20 years an…
- What rebate can a solar system just over 100 kW get?Systems above 100 kW and up to 1 MW installed from 1 October 2026 can create STCs with a fixed five-year deeming period, instead of waiting years for …
- When does the SRES 1 MW expansion start, and are the regulations in place?The Small-scale Renewable Energy Scheme now covers solar above 100 kW up to 1 MW for systems installed from 1 October 2026. The Renewable Energy (Elec…
- Who buys LGCs from small solar farms and commercial rooftops?LGCs are bought by liable entities such as electricity retailers, by certificate traders and brokers who aggregate them, and by PPA counterparties who…
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