HomeMy WebLinkAboutAttch A Energy UsageAttachment A
Summary Historical Energy Usage Data
2005 through 2011
Energy Purchases - MWh
Delivered to Transmission
Total Bulk Energy
Year
Substations
System Losses (1)
Purchased
2011
156,407
4,137
160,544
2010
r
154,483
4,011
158,494
2009
153,677
4,018
157,695
2008
156,113
4,076
160,189
2007
154,342
4,042
158,384
2006
153,210
4,018
157,228
2005
142,852
3,767
146,619
Actual vs. Budgeted Energy Purchases - MWh
Year
Actual
Budget
% Difference
2011
160,544
162,000
0.9%
2010
158,494
160,000
0.9%
2009
157,695
163,220
3.4%
2008
160,189
161,604
0.9%
2007
158,384
156,963
-0.9%
2006
157,228
150,168
2005
146,619
145,382
-0.9%
Energy Sales to Customers - MWh
Change from Previous
Year Energy Sales, MWh Year, %
2011
149,978
1.58%
2010
147,647
0.53%
2009
146,875
-0.96%
2008
148,305
0.83%
2007
147,091
1.96%
2006
144,269
5.82%
2005
136,339
-----
Distribution System Losses - MWh
Year Losses(2)
Delivered to Losses as a
Substations % of Delivered to Subs
2011
6,429
156,407
4.1%
2010
6,836
154,483
4.4%
2009
6,802
153,677
4.4%
2008
7,808
156,113
5.0%
2007
7,251
154,342
4.7%
2006
8,941
153,210
5.8%
2005
6,513
142,852
4.6%
Notes: 1 Transmission System Losses: This is the amount of MWh that NVEnergy requires the
District to pay by tariff as a loss. This is defined as a fixed percentage of MWh Delivered to the District
2 Distribution System Losses: This is the difference between energy delivered to our substations and what
is sold to District customers. Historically this value has been about 4%to 5%.
Truckee Donner Public Utility District
Purchased Power
Load Data
Total Load - MWH (including transmission losses)
Peak MW
Total Load - MWH % Actual --- Above or (below) Budget
Purchases (All in MWh)
Total Schedule All MWH Purchases - from All Suppliers
Expenditures
Total Energy Supply - UAMPS, WAPA, Geo, etc
Transmission - SPPCo.
Scheduling - NCPA
WAPA cost/(credit) toward MWh's
Total Expenditures
$ Over/(Under) Budget
% Over/(Under) Budget
Total Unit Cost of Purchased Power $/MWh
% Over/(Under) Budget
Note:
Through Dec 2011, the District has purchased
and has paid
2011 Budget vs Actual
2011
2011
Actual
Budget
160,544
162,000
32.8
36.0
-0.9%
160,544
162,000
Actual
Budget
$10,039,485
$10,130,484
$848,564
$1,043,766
$65,604
$77,993
($171,406)
$76,416
Actual
Budget
$10,782,247
$11,328,658
($546,412)
-4.82%
Actual
Budget
$67.16
$69.93
-3.96%
-0.9% less energy than budgeted
-4.82% less than budgeted.