The Energy Cost of a Good Drop Mr Jeff Smith WEA Aug. 2012 NZ
The Energy Cost of a Good Drop
WEA Conference 2012 Jeff Smit
September 2012
Back in the day... - A press?? - Refrigeration plant?? - Pumps?? - A bottling line?? -
A truck??
High labour, no technology
Modern Winemaking - Presses - Refrigeration systems and storage - Mobile and fixed pumps - Automated bottling systems
- Vehicular transportation - Low labour, high technology - Same product??
Modern Winemaking All this technology costs dollars to operate... -
Maintenance
-
Energy
But how much??
Where does the energy go? Typical Winery Energy Usage - WEA Example General Use
Hot Water
Compressed Air
Refrigeration
Lights
Fruit Recieval and Pressing
200,000 180,000 160,000 140,000 120,000 100,000 80,000 60,000 40,000 20,000 0 Jun 09 Jul 09 Aug 09 Sep 09 Oct 09 Nov 09 Dec 09 Jan 10 Feb 10 Mar 10 Apr 10 May 10 Jun 10 Jul 10 Aug 10 Sep 10 Oct 10 Nov 10 Dec 10 Jan 11 Feb 11 Mar 11 Apr 11 May 11 Jun 11 Jul 11
Is that a lot of energy? Wineries we have worked with have varied energy density values 0.11 kWh/bottle
0.47 kWh/bottle
1.0 kWh/bottle
0.02 $/bottle
0.11 $/bottle
0.21 $/bottle
Larger or more efficient wineries
Average Use Energy Usage
Smaller or less efficient wineries
Think about 2,000,000 bottles – energy costs vary from $40k – $420k per annum What makes the difference??
Where to save energy? Technology gets you so far -
-
-
Refrigeration -
Proper sizing and operation
-
Heat Recovery
-
Variable Speed Drives
Compressed Air -
Large compressor for vintage, small units for normal operation
-
VSD drives, properly sized accumulators
Hot Water -
Heat recovery, heat pump or solar hot water generation
Where to save energy? TECHNOLOGY ONLY GETS YOU SO FAR! Lots of opportunities for savings by looking at wine making philosophy – seems to be lots of variation in how things are done, yet all produce a good drop -Why is
wine held at 4, 6, 8, X°C during cold settling?
Does wine temp need to be drawn down quickly – why not space it out and reduce peak loads? Barrel cellars a prime example. -
Why use hot water for cleaning? Is a caustic wash not enough? How much hot water should be used? -
-
Why not meter end energy uses?? (wee bit of technology!)
Where to save energy? Need to engage the entire design team in a formal winemaking plan to figure out what needs to be done when, where and why. -
Peak demand allowance on site
-
Estimates of site capacities – what will be needed for upcoming vintages?
-
What’s the process, and where is energy introduced?
-
Query everything!
Is this the whole story? In a word, no...
We’ve only talked about making the wine... Lots of other areas where energy is used excessively! -
-
Bottling not included – additional energy cost.
-
Cellar doors – usually well overlit
To understand in detail, really need site metering to see where excess is being used
In Summary -
Technology helps get energy use down... to a point
-
Effective planning helps reduce more
-
Formalise with a comprehensive wine making plan
-
Sub-metering is absolutely necessary
0.11 kWh/bottle
0.47 kWh/bottle
1.0 kWh/bottle
0.02 $/bottle
0.11 $/bottle
0.21 $/bottle
Where do you want to be?
WEA Conference 2012 Jeff Smit
September 2012
Back in the day... - A press?? - Refrigeration plant?? - Pumps?? - A bottling line?? -
A truck??
High labour, no technology
Modern Winemaking - Presses - Refrigeration systems and storage - Mobile and fixed pumps - Automated bottling systems
- Vehicular transportation - Low labour, high technology - Same product??
Modern Winemaking All this technology costs dollars to operate... -
Maintenance
-
Energy
But how much??
Where does the energy go? Typical Winery Energy Usage - WEA Example General Use
Hot Water
Compressed Air
Refrigeration
Lights
Fruit Recieval and Pressing
200,000 180,000 160,000 140,000 120,000 100,000 80,000 60,000 40,000 20,000 0 Jun 09 Jul 09 Aug 09 Sep 09 Oct 09 Nov 09 Dec 09 Jan 10 Feb 10 Mar 10 Apr 10 May 10 Jun 10 Jul 10 Aug 10 Sep 10 Oct 10 Nov 10 Dec 10 Jan 11 Feb 11 Mar 11 Apr 11 May 11 Jun 11 Jul 11
Is that a lot of energy? Wineries we have worked with have varied energy density values 0.11 kWh/bottle
0.47 kWh/bottle
1.0 kWh/bottle
0.02 $/bottle
0.11 $/bottle
0.21 $/bottle
Larger or more efficient wineries
Average Use Energy Usage
Smaller or less efficient wineries
Think about 2,000,000 bottles – energy costs vary from $40k – $420k per annum What makes the difference??
Where to save energy? Technology gets you so far -
-
-
Refrigeration -
Proper sizing and operation
-
Heat Recovery
-
Variable Speed Drives
Compressed Air -
Large compressor for vintage, small units for normal operation
-
VSD drives, properly sized accumulators
Hot Water -
Heat recovery, heat pump or solar hot water generation
Where to save energy? TECHNOLOGY ONLY GETS YOU SO FAR! Lots of opportunities for savings by looking at wine making philosophy – seems to be lots of variation in how things are done, yet all produce a good drop -Why is
wine held at 4, 6, 8, X°C during cold settling?
Does wine temp need to be drawn down quickly – why not space it out and reduce peak loads? Barrel cellars a prime example. -
Why use hot water for cleaning? Is a caustic wash not enough? How much hot water should be used? -
-
Why not meter end energy uses?? (wee bit of technology!)
Where to save energy? Need to engage the entire design team in a formal winemaking plan to figure out what needs to be done when, where and why. -
Peak demand allowance on site
-
Estimates of site capacities – what will be needed for upcoming vintages?
-
What’s the process, and where is energy introduced?
-
Query everything!
Is this the whole story? In a word, no...
We’ve only talked about making the wine... Lots of other areas where energy is used excessively! -
-
Bottling not included – additional energy cost.
-
Cellar doors – usually well overlit
To understand in detail, really need site metering to see where excess is being used
In Summary -
Technology helps get energy use down... to a point
-
Effective planning helps reduce more
-
Formalise with a comprehensive wine making plan
-
Sub-metering is absolutely necessary
0.11 kWh/bottle
0.47 kWh/bottle
1.0 kWh/bottle
0.02 $/bottle
0.11 $/bottle
0.21 $/bottle
Where do you want to be?
