1. Supply and Demand Demand Tariff Demand management Rules? - PDF document

14/12/2018 South Australian Wine Industry • Established in 1840, the South Australian Wine Industry Association is the peak body representing the viticultural and winemaking interests of the state. • The association provides practical information and advice to members on a wide range of topics - industrial relations, OHS, environment, viticulture and export, to name a few. Electricity Demand Management Practical steps for the SA Wine Industry Green Industries SA 2XE • Green Industries SA helps develop the • 2XE assists clients adapt to the changing green economy in response to the environment through strategic demand for clean and green produce, transformation, adoption of engineering and the reduction of emissions to air, technologies and best practices to water and soil from industry. increase business efficiency. • Green Industries SA promotes the more • 2XE works with businesses to become efficient use of resources, and the more resource efficient by improving conservation and recovery of scarce energy, water, material and time resources. Electricity – Supply and Demand 1. Supply and Demand Demand Tariff Demand management Rules? What can you do? 1

14/12/2018 Supply and Demand Continual state of change Electricity demand varies every minute Electricity distribution Electricity supply by Electricity supply by all renewables varies every other sources needs to minute balance demand Supply and Demand Supply and Demand Supply and Demand Supply and Demand 2

14/12/2018 Your retailer will set a price for your Supply and Demand electricity The actual cost of electricity will vary A LOT Cost of 1c/kWh - $1.kWh in the real market electricity High demand = expensive electricity Low demand = cheap electricity Supply and Demand Both use 500kWh per day Low demand, high demand 100.0 kWh 50.0 0.0 12:00 2:00 4:00 6:00 8:00 10:00 12:00 2:00 4:00 6:00 8:00 10:00 AM AM AM AM AM AM PM PM PM PM PM PM Low Demand High Demand What is peak demand and why is it important • Highest quantity of electricity in single a single instant • Occurs when EVERYONE is using intensive equipment (Air Conditioners, refrigeration, electrolysis, etc) • Cause huge strain on transmission infrastructure (lines, substation, transformers, etc.) • 2017/2018 Second warmest summer on record • Need infrastructure to keep up with demand Peak demand – TV pickup • No longer use rolling blackouts to decrease demand 3

14/12/2018 Aging Heat waves / infrastructure home AC ‘peaks’ 2015 – 2017 Automatic roll-over of all large businesses (>160MWh) to demand Sizing Incentivise infrastructure customers Background – 2017 – 2020 Second wave - small demand tariff business customers rollout (<160MWh) Change Balanced, behaviour flattened load Transition Transition period prior to full demand Demand management Tariffs 2015 – Why? 2. Demand • If you’re not already on a Tariffs and demand tariff, you soon will be What does this • Need to come up with strategies mean for the opportunities to manage demand charges wine industry? • To manage demand charges, you need to understand the rules Both use 500kWh per day Comparison of old and new bills Low demand, high demand 100.0 $10,000 50.0 $1,000 0.0 12:00 AM 2:00 AM 4:00 AM 6:00 AM 8:00 AM 10:00 AM 12:00 PM 2:00 PM 4:00 PM 6:00 PM 8:00 PM 10:00 PM Low Demand High Demand 4

14/12/2018 What is a demand charge Both use 500kWh per day (average over 30 minutes) Mon Tue Wed Thu Fri Sat Sun 1:00 AM 2:00 AM Low demand, high demand 3:00 AM 4:00 AM 5:00 AM 6:00 AM 100.0 7:00 AM $1,000 (plus 8:00 AM 9:00 AM anytime 10:00 AM demand) 11:00 AM 50.0 12:00 PM 1:00 PM $1,000 2:00 PM 3:00 PM Agreed Annual Demand Period 0.0 4:00 PM (November - March, local time) 5:00 PM 12:00 AM 2:00 AM 4:00 AM 6:00 AM 8:00 AM 10:00 AM 12:00 PM 2:00 PM 4:00 PM 6:00 PM 8:00 PM 10:00 PM 6:00 PM 7:00 PM 8:00 PM 9:00 PM 10:00 PM Low Demand High Demand 11:00 PM 12:00 AM Agreed Tariff Mon Tue Wed Thu Fri Sat Sun TWO MAIN CATEGORIES SMALL BUSINESS (LESS LARGE BUSINESS 1:00 AM Business THAN 160MWH PER (GREATER THAN 2:00 AM (NO CHOICE) ANNUM) 160MWH PER ANNUM) 3:00 AM Anytime Demand 4:00 AM Network (all year round, local time) 5:00 AM 6:00 AM Tariff 7:00 AM 8:00 AM 9:00 AM 10:00 AM 11:00 AM 12:00 PM 1:00 PM TWO TARIFF TYPES AGREED ACTUAL 2:00 PM 3:00 PM (CHOICE) Agreed Annual Demand Period 4:00 PM (November - March, local time) 5:00 PM 6:00 PM 7:00 PM 8:00 PM 9:00 PM 10:00 PM 11:00 PM 12:00 AM Agreed Tariff One peak over 30 minutes sets your annual demand Components Measurement Charging parameter Fixed $/customer/day Fixed supply charge per annum Usage $/kWh Anytime based on usage Maximum demand charge based on average maximum demand (30mins) November to March between 12pm – 9pm on working days and charged in a declining block Demand $/kVA/day • Block 1: 0-1,000kVA, charged at a higher rate • Block 2: >1,000kVA, charged at a lower rate Maximum demand charge if anytime demand exceeds agreed Additional Demand $/kVA/day demand (Additional demand – Anytime demand – Annual demand) and is charged at a lower rate. 5

14/12/2018 Actual Tariff Agreed Use Mon Tue Wed Thu Fri Sat Sun 1:00 AM 2:00 AM 3:00 AM Off-peak Demand period 4:00 AM (all year round, local time) 5:00 AM 6:00 AM 7:00 AM 8:00 AM 9:00 AM 10:00 AM 11:00 AM 12:00 PM 1:00 PM Shoulder Demand Period 2:00 PM (all year round, local time) 3:00 PM 4:00 PM 5:00 PM Peak Demand Period 6:00 PM (November - March, local time) 7:00 PM 8:00 PM 9:00 PM 10:00 PM 11:00 PM 12:00 AM Actual Tariff Actual Use Components Measurement Charging parameter Fixed $/customer/day Fixed supply charge per annum Usage $/kWh Anytime based on usage Maximum demand charge based on average maximum demand (30mins) • Demand $/kVA/day Shoulder: 12pm – 4pm on working days, all year round • Peak: 4pm – 9pm on working days, November – March Currently Off-peak demand is measured, however not charged. Tariff structures Tariff structures 6

14/12/2018 Which one is better? Hard to work out yourself Hard to get help from Which is retailers or SAPN better for you? Agreed or actual? Best to run data through a simulator Talk with an energy expert 3. Demand Get the right data Understand your management electricity use What can you strategies do? Put management Use technology strategies in place What do your electricity bills tell you? What does your interval Getting the meter data tell you? Getting the right data right data What can submetering tell you? How do you manage demand using data? 7

14/12/2018 Energy Bills - Data WHERE ARE THE THE SIZE OF THE What do your PROBLEMS? PROBLEM? electricity bills tell you? THE BUSINESS CASE FOR CHANGE Energy Bills – Actua ual demand Energy Bills – Agr greed demand Critical step! Gives you the information you How and when you use What does need to understand and electricity Current State manage your energy your interval – Interval meter data data tell you? Hard to get in a useful format 3 rd Party energy dashboard are Can be used to identify growing improvement projects 8

14/12/2018 How do you get your interval data? Not enough info to make a change • SAPN (Raw data only – Not useful) • Retail data (Daily data, but not always 30 minutes) Great data! What can good data give you? WHEN AND HOW WHEN YOU CAN WHAT CAUSES YOUR WHAT IS YOUR YOUR ARE USING LOAD SHED ‘PEAK DEMAND’ ‘POWER FACTOR’ ELECTRICITY WHICH TARIFF IS THE WHAT IS YOUR HOW DO YOU SAVE BEST FOR YOU? DEMAND MONEY FREQUENCY? Sub-metering What Whole site about sub- Refrigeration Processing Warehouse system metering? Chiller Pumping 9

14/12/2018 Detailed energy use of sub- Submetering Data systems Easier to identify opportunities Sub-metering First step towards automated demand management Helps you conduct preventative maintenance Typical daily demand during vintage Demand-side opportunities Where is electricity used in your winery? Refrigeration – biggest area of opportunity 10

14/12/2018 • High seasonal use and electricity QUESTION: costs What makes • Huge volumes of thermal storage wineries • One of the few industries that CAN manage demand by different? changing practices Regardless of insulation, wine takes time to warm up. 24kL Tank, 40°C day Conscious decision making about how and when you cool wine What can you A range of opportunities to do? choose from Need to have a balanced approach What you want your demand to look like Complete the bulk of refrigeration outside of peak period Load shifting & Valley filling Refrigerate tank farm in zones to reduce peak in refrigeration loading refrigeration Don’t cool tank farm while chilling must or ferments 11