viticulture– electricity procurement site / company name and logo here this is an agrifood skills...
TRANSCRIPT
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Viticulture– Electricity procurement
Site / company name and logo here
This is an AgriFood Skills Australia Ltd project developed in partnership with Energetics Pty Ltd and funded by the Australian Government under the Clean Energy and Other Skills Package
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National Electricity Market (NEM)• National Electricity Market
established in 1998 to facilitate deregulation.
• Electricity can physically flow between states.
• Each state has separate markets where generators can sell their output and retailers can buy their demand.– Prices set by supply and demand
• WA electricity market and billing differs significantly to the NEM
Source: AEMO SOO 2009
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Deregulation– electricity
• For customers, deregulation means:– The right to choose who supplies your electricity invoices– No change to network provider– Small sites typically retain bundled billing– Large sites on contract move to unbundled billing
• NSW, ACT, SA, VIC, QLD fully deregulated• WA, TAS, NT partially deregulated• For other energy supplies, ask your supplier if your account
is ‘contestable’
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Electricity Invoices
Formats and Components of Electricity Billing
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Electricity Supply ChainMAKES THE PRODUCT - ELECTRICITY
Costs included in Energy Charges
DELIVERS THE PRODUCT TO THE SYSTEM
Regulated & Passed on to Retailer via Network Charges
DELIVERS THE PRODUCT TO THE CUSTOMER
Owns the Poles and Wires. Regulated Network Charges.
SELLS THE PRODUCT TO THE CUSTOMER
Manages Risk & Bundles Charges.
GENERATION
TRANSMISSION
DISTRIBUTION
RETAILER
CUSTOMERTHE END USER
Uses the electricity & pays the retailer
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Typical bundled invoice small sites
RetailerRetailer
Financial flowsFinancial flows
Physical flow of powerPhysical flow of power
GeneratorGenerator Transmission linesTransmission lines Distribution linesDistribution lines
End usersEnd users
AEMOAEMO
Individual Cost Elements Not Identified On Bill
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Generator
Transmission lines Distribution lines
AEMO
Market Manager
Meter Agent
Typical unbundled invoice large sites
Contestable. Prices vary by supplier.
Non-Contestable. Prices vary by location.
Non-Contestable. Prices vary by state.
Contestable. Prices vary by supplier.
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Charge components
• Energy – generator, retail margin (in c/kWh, may be a single rate or have time-of-use components, e.g. night-rate)
• Network – transmission + distribution (c/kWh for small customers, includes demand ($/kW or kVA) for large users)
• Market – NEM fees (in c/kWh and typically <1% of costs)• Metering – fee for each metering point• Environmental – renewable energy, retailer obligation scheme
pass-through fees, carbon price (usually passed through as c/kWh charges)
• GreenPower – users may voluntarily purchase accredited renewable energy on top of charges passed through – e.g. as part of being ‘carbon neutral’
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Contracting Principles – for vineyards that are large enough to warrant using a structured market
approach
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What does a contract cover?
• Energy price and quantity• Contribution to mandatory environmental obligations (RECs,
NGACs, GECs etc)• Metering (optional)• Account management• BillingNot:• Delivery of energy• Security of supply• Regulated charges• Losses
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Types of Contract
1. Fixed price fixed volume forward contracting
3. Fixed block purchase (e.g. with generator) with partial pool exposure
4. Portfolio purchase of fixed volume (partial pool exposure)
5. Managed pool exposure with active demand management or financial cover
6. Pool price pass-through
2. Flexible forward purchase of variable volume
Decreasing budget certainty, but potentially higher reward
Over 95% of contract customers use Option 1
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Option 1–Fixed Price Fixed Volume
• Customer agrees to buy from retailer for fixed price for a set term– “Standard” form of electricity contract
Advantages Disadvantages
All market risk is on retailer – no exposure to rising market prices.
No benefits will be received if market prices fall during the contract.
Standard form of contract with low ongoing maintenance.
Little flexibility should your requirements change mid-contract.
Price certainty – retail elements of an invoice will not change from the agreed rates.
If you are a large irrigator with flexibility in your pumping operations a partial or full pool exposure might be worth considering
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• Timing and approvals– take advantage of price dips, reduce the offer validity period and
have a rapid approvals process• Duration of contract sought
– Short term (e.g. 12 month) contracts for new supplies to allow load profiles to be built
• Information / data– Provide detailed and accurate data, including information about
future changes where known• Environmental charges (RECs, GECs, NGACs and NRECs)• Additional account services – are services such as electronic
billing and data provision required?• Voluntary GreenPower – e.g. for carbon neutrality
Issues to consider when contracting
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Opportunities for Savings
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Assess opportunities for:• Switching franchise tariffs , particularly to offpeak rates for water pumping (if applicable)• Your network (wires and poles) operator may be able to incentivise you to reduce peak
demand at critical times (e.g. peak summer heat)• Enquire about peak pricing with your retailer• Moving to contract - evaluate risks and opportunities in contracting separately for energy,
enviro and metering• Switching supplier – if you are a smaller user you should shop around to find the best deal
for the short and medium term, taking on board forecast trends in energy prices• Power factor correction, if your site is on a kVA-demand tariff• Evaluate ways to change your supply mix that can produce long term benefits (e.g. diesel or
electric motors, solar PV, biomass energy generation)• Use your knowledge of your energy rates to work out the cost to run equipment that you
are considering purchasing, and make this part of your decision-making• Monitor and meter your energy use regularly!
Steps to assessing savings