Power Outage History Reports

Power Outage History Report

This historical listing is for major campus power outages.  Lising is under development and may not represent all power outages, especially those power outages local to a lab or building.  

Information on current power outages can be found at:
Pacific Gas & Electric Outage Page

 

Date Time

Length
(Min)

Cause Notes

Sat
1/19/17

0700-1500

480

Planned
Work

Planned Power Outage in Sinsheimer Labs only
To support work separating emergency and standby power loads.   Power outage allows installation of new breaker for new automatic transfer switch (ATS) to switch power onto separate standby and life-safety generatores in the event of main PG&E power outage. This work will split feeds from two generators to standby and life safety emergency power.  A followup projject will add additional standby panels to Sinsheimer labs.

Thur
1/05/17

0209-
0243

34

PG&E
Tree fell on power line

Cogen did not pickup load

Campus wide power outage.   PG&E power was interrupted and was out out service.   Cogen was unable to provide power to campus.

Service outage and restoration times based upon hausslertemp3 sensor communications located in Biomed.
Wed
1/04/17

0957-
TBD

TBD

PG&E
Power line down

Cogen did not pickup load

Campus wide power outage.   PG&E power was interrupted and was out out service until (TBD).   Cogen was unable to provide power to campus due to synronization problems between main turbine and back start generator and later due ot problems with closing campus breakers.   Buildings on Cogen (JBEB, Sinshimer) did not have power until later in the evening, after campus switched those buildings to another feeder.   As of 11am 1/5/17, campus was still troublshooting congen.

Service outage and restoration times based upon BE250temp data sensor communications in Jack Baskin Engineering.
Out 10:02am  restored  11:12am

 

Fri
8/26/16

0727-
0747

20

PG&E 
Main Campus
Breaker

Cause:  Main campus breaker opened.  Campus is investigating why.   During this time, Cogen was running and power to Baskin Engineering Building and other Science Hill buildings on the A1 feeder remained up

BSOE Buildings that experience power losses include Engineering 2 and Biomedical Sciences, Oakes College Academic building.  We believe building emergency generators in those buildings started and provided power to emergency and standby circuits.   We have reports of local circuit breakers and lighting in Physical Sciences building being offline (lights and computers on 2nd floor).
 
We have no reports of power outages at 2300 Delaware campus, Coastal Science Campus or Silicon Valley Campus
Thur
8/11/16
2115-
2233

78

PG&EBrownout

Last night there was an unplanned power outage starting at approximately 9:15pm.  Power was restored to most campus buildings by 10:33pm.   This unplanned power outage effected most of the UCSC main campus.  I do not have a report for power outages at 2300 Delaware, Coastal Science Campus or Silicon Valley Campus.   I suspect given brown outs on West Side of Santa Cruz that Delaware and Coastal Science Campus might have seen a power blip or two. Initially Three of four main campus feeders went down with only the B2 feeder (campus housing) staying on.  Then at 10:21 all four feeders went down.  There were reported brown outs from West Side of Santa Cruz to Soquel and Ben Lomand.  Power outage was caused by PG&E.
Unfortunately during the outage, the Campus Cogen turbine was down for 48 hour maintenance cycle, so Science Hill Buildings normally powered by Cogen did see this power outage.  That would include JBEB and Sinshimer Labs.
Sun
6/26/16
0054-
0240

106

PG&E
Outage
There was a wide spread PG&E power outage early Sunday morning. Campus heat plant reported campus power went out about 12:54am Sunday and campus power was restored around 2:40am.  During this time, UCSC Cogen plant was running and did provide power to the A1 feeder which powered Jack Baskin Engineering Building (JBEB).  Other BSOE occupied buildings did loose power and only had
limited backup generator power.   This included Engineering 2 (E2), Biomedical Sciences Building and Physical Sciences Building (PSB). Some building systems such as HVAC continued to be off line for some
time as various physical plant technicians needed to be called back in and many people were out of town or on vacation.
6/16/16 0700-
1900

N/A

Internal
Testing

Planned Outages - Intermittent outages for up to 60 minutes each for Cogen plant and UCSC electrical grid testing
6/15/16 1400-
2100

N/A

Internal
Testing
Planned Outages - Intermittent outages for up to 60 minutes each for Cogen plant and UCSC electrical grid testing

Thu
4/7/16

0508-
0620

72

PG&E power blip

Heat Plant operators tell us that a PG&E power outage or blip on the West Side caused the campus substation to disconnect from PG&E grid.  BSOE remote indicators show loss of sensor data around 5:08 am and sensor data was restored around 6:15am.  Plant operators said high voltage electricans indicated power is fully restored around 6:20am.
Reports from staff and observations mentioned windy conditions in the area.

Sun
4/3/16

0446-0547

61

PG&EFuse Blew

Campus electricians tell us that a PG&E main breaker or fuse tripped, which caused the campus substation to disconnect from PG&E grid.
BSOE remote indicators show loss of sensor data around 4:46am and sensor data was restored around 5:47am.

Fri
4/1/16

1137-1205

28

PG&E
System
Fault

PG&E power to campus was briefly interrupted which caused the Campus substation to drop offline. A tree feel on some PG&E power lines and PG&E switched power around to isolate the fault.   The campus cogen gurbine tripped off line.   Power was restored to JBEB around 12:05 with various buildings coming on line at slightly different times.  Power was considered normal and stable by around 12:20pm.

Building generators in JBEB, E2, PSB, BioMed, Sinshimer appeared to be running.

Mon
3/21/16

(a)
1400-
0600 next day

0
(a)
960

Planned
Work

Pre-planned power interruptions for UCSC Grid work and testing in support of system improvements.
No power interruptions were seen in BSOE buildings, however the Engineering 2 chiller which depends upon waste heat from the Cogen plant did drop offline from 10pm Mon to 6am Tuesday.

(a) Effective power shutdown effecting computing complex was from 2pm Monday to 6am Tuesday due to planned outage(s) and for chiller repairs.  Some computer servers were restarted much later as IT staff came to work.  BSOE core servers continued to operate througout planned power outage and chiller shutdown.

Sun
3/5/16

1830-
2015

105

PG&EWest Side
Outage

PG&E Grid Power was lost to the UCSC campus at about 6:30 pm tonight, Saturday 3/5.  According to the PG&E web site, the outage effected Western Drive and the UCSC campus.  During the outage the Campus Cogen gas turbine tripped offline as well and was not restarted. Building backup generators in E2 and JBEB did operate.   We are checking with campus electrical control on other buildings.
BSOE facilities staff were dispatched to campus and setup portable cooling systems for the BSOE core data center and are monitoring the situation.  At about 8:15pm power was restored to E2 and JBEB, however campus grid controllers are not certain that the power situation is yet stable.  Just as I wrote that power was again lost at 8:38pm

Wed
2/18/16

1752-
1905
73 Storm Triggered

Short duration outage (2 min) in Scotts Valley triggered UCSC substation offline.   Outage occurred due to wind/rain from storm possibly causing power lines to short briefly.   Persons were trapped in elevators in 5 locations and required rescue from Santa Cruz Fire.  Lights on South side of JBEB did not come on and main stairwell was dark.

AT&T celluar was not available in JBEB or E2.  Verizon was working.  This is typical though.

Saturday
11/28/15

1230-1330 60 PG&E initiated

Need data from heat plant.  Verbal was that PG&E had a power transmission problem which caused campus substation to trip offline.  BSOE lab freezer temperature sensors in JBEB indicated that power was lost around 12:31pm and returned 13:31pm.

Sunday
10/18/15

0700-0746 46 PG&E initiated

PG&E had a power transmission problem around 7 am this morning, causing the campus to lose PG&E power. The Plant Operator was able to restore power to the A-1 feeder after approx. 10 minutes. A-2 Feeder took longer to restore.  A-2 provides power to the Engineering 2 Building.  Plant operator confirmed that breaker 52-03 was able to close but 52-01 did not close. 52-10 was closed around 7:32 am.

End time of 7:46 reported by ITS staff using UPS systems in E2.  Other buildings were up and running sooner.

Friday
10/16/15

1613- 1635 22 PG&E initiated
The main UCSC experienced a power outage today around 4:13 pm .  Power was restored to buildings in phases but most were back up by 4:35 pm.   Please check laboratory equipment  for proper operating before using.   In some cases, you may need to reset power strips.  
 
During this power outage, some of the emergency lighting and standby power systems in the Engineering 2 (E2) building did not appear to be operating.   This was reported to campus electricians and campus officials who are investigating.   
 
Physical Plant reports that the outage (on main campus only) was caused by a PG&E fault.  According to the PG&E outage website, the cause is still being assessed.