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Air Force Center for Engineering and the Environment Massachusetts Military Reservation MA Wind Working Group 06 Oct 2011. Rose H. Forbes, P.E. AFCEE/MMR. Primarily PCE, TCE, and EDB Concentrations generally < 1 mg/L Plumes are typically deep (>100 ft) and thick (>100 ft)

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Presentation Transcript
slide1

Air Force Center for Engineering and the Environment

Massachusetts Military Reservation

MA Wind Working Group

06 Oct 2011

Rose H. Forbes, P.E.

AFCEE/MMR

slide4

Primarily PCE, TCE, and EDB

  • Concentrations generally < 1 mg/L
  • Plumes are typically deep (>100 ft) and thick (>100 ft)
  • 9 treatment plants treating 10.3 MGD (down from 17.8 MGD)
  • > 27 miles of pipeline
  • > 100 EWs and RWs
  • > 3,000 MWs
optimization sustainability better cheaper faster cleanup
Optimization & SustainabilityBetter, Cheaper, Faster Cleanup
  • Carbon
  • Well Maintenance
  • Labor
  • Energy/Fuel
  • Sampling
  • Drilling
  • Regulations
  • Reporting
  • Alternative

Technologies

energy optimization
Energy Optimization
  • Wellfield optimization
  • Use of passive diffusion bag sampling
  • Use of direct push rig vs larger sonic/auger rig
  • On site O&M/well maintenance
  • Installation of VFDs and premium efficiency motors
  • Elimination of booster pumps and pump motor downsizing
  • Replaced sodium vapor overhead lighting
  • Use of bio-diesel, soy based hydraulic fluid
  • Reduction in propane use
  • Installation of low-wattage heaters
  • Misc energy (motion sensors, lighting replacement, programmable thermostats, LED exit lighting, new windows, etc.)
  • Signed up with the load reduction program (demand response program)
  • Evaluated utility rate structures
wind turbine energy optimization
Wind Turbine - Energy Optimization
  • Expected to produce ~ 3,810 MWh annually based on 29% capacity factor (P50); ~ 3377 MWh annually based on 25.7% (P50)
  • Annual load from treatment systems in 2007 ~ 12,300 MWh; in 2011 ~10,862 MWh
  • Expected to generate 25-30% of AFCEE’s total electrical requirement (>$2M in 2009; $1.7 M in 2011)
  • Expected to reduce ~25-30% air emissions
  • Payback originally anticipated in 6-8 years (RECs/O&M); working on a better ROI/SROI
wind turbine costs
Wind Turbine Costs
  • Constructability Assessment/Environmental Assessment (CH2M Hill) - ~ $400,000
  • Construction contract awarded in Sep 2007 (ECC), $4.87M (includes O&M contract for two years)
    • $5000 for Safety Training
    • $29,900 per year for two years (FLAG O&M sub - 2 maintenance events per years + warranty + availability guarantee)
    • $20,000 for website development
    • $2700 for blade inspection (year 1); $2800 for blade inspection (year 2)
  • Title II Services/Oversight (CH2M Hill) - $150,000
  • NSTAR Interconnection/Witness Test Costs - $53,858
25 jan 23 feb 2011
25 Jan – 23 Feb 2011

$573,871: 02 Dec 2009-25 Jul 2011

(+ $60,000 availability guarantee for first year)

wind turbine ii
Wind Turbine II
  • 2 new GE 1.5-77 wind turbines in northern part of MMR
  • Constructability Assessment/EA (CH2M Hill) - $462,284
  • Construction Contract (ECC) + one year O&M = $9.4M
  • Title II Oversight/Environmental Surveys - $340,994.82
  • Nstar Costs $272,000
progress to date
Progress To-Date
  • Completed Constructability Assessment [Basis of Design, Economic Analyses, Environmental Assessment (EA)]
  • EA FONSI signed in Nov 2010
  • Submitted Interconnection application to NSTAR
  • FAA studies approved
  • PAVE PAWS evaluation approved
  • Coordination with other agencies and community completed
    • EMC/SAC/CAC, USFWS , MA NHESP, MHC/BHC, THPO, MA FWS, MMRCT/SMB, newsreleases
  • Awarded construction project in Sep 2010 to ECC ($9.4M)
  • Initial clearing of two turbine sites in Oct/Nov 2010, included turtle surveys and baseline invasive species survey
  • Grubbing, cut/fill and substation clearing in March/April 2011 , included Eastern Box turtle surveys
  • Pre- and post-construction bird/bat surveys started/continuing
foundations
Foundations

~470 yds 5000 psi concrete

47’ diameter

Spread form design

Completed in May 2011

blades texas
Blades - Texas

Length = 121.4 ft

Weight = 13,900 lbs

Fiberglass construction

Arrived 7 Jun 2011

  • Insert photo
tower sections iowa
Tower Sections - Iowa

Base: 111,400 lbs; 72 ft long; 15 ft diameter at base

Steel construction

Arrived June/July 2011

Mid: 80,700 lbs; 85 ft long; 14 ft diameter at base

Top: 62,700 lbs; 97 ft long; 11 ft diameter at base

tower sections cont
Tower Sections (cont)

Mid section hit an overpass in Indiana on 22 Jun 2011

Driver varied from permitted route

Damage was cosmetic; tests/repairs conducted on site

machine head florida
Machine Head - Florida

126,000 lbs

12.5 ft high

29 ft long

progress to date cont
Progress To-Date (cont.)
  • Both wind turbines installed late June through mid July 2011
slide21

View from Scenic Highway

(across the canal)

remaining schedule
Remaining Schedule
  • Substation construction to be completed in October 2011
  • Wind turbine commissioning starting 11 Oct 2011
  • Interconnection anticipated 15-16 Oct 2011
  • Ribbon cutting event on 27 Oct 2011 as part of October Energy Awareness Month

Visits to Date

  • Congressman Keating – 28 Jun 2011
  • Environmental Business Council – 7 July 2011
  • Fox News video – 21 Jul 2011
  • EOEEA Secretary Sullivan – 28 Jul 2011
questions comments
QUESTIONS/COMMENTS?

rose.forbes@us.af.mil

notable issues lessons learned
Notable Issues/Lessons Learned
  • Communicate early and often with stakeholders
  • Understand net-metering, RECs, and state rules
  • Utility Interconnection – build in time and plan for costs
  • Logistics - room to haul and build (bridges, road width, corners, permits, bad drivers, Military Cargo Preference Act of 1904, etc)
  • Explore additional grants
  • Inspect the manufacturing facilities if possible
  • Make sure the turbine components suppliers and transportation companies are insured.
  • Evaluate modes of transportation (roadway, rail, barge)
notable issues lessons learned1
Notable Issues/Lessons Learned
  • Construct foundation in cool weather and allow time to achieve strength
  • Long lead time on turbines - explore interest from manufacturers
  • Plan on a schedule and hold contractors to it – include liquidated damages in contracts
  • Plan submittals (deliverables) and have a submittal register
  • Use existing wind resource data and other studies if available and applicable
  • Evaluate warranties and O&M/service contracts in advance; build in availability guarantee
  • Consult experts (i.e. DOE) on funding mechanisms (EULs, ESPCs, tax credits)
  • Don’t plan a ribbon cutting ceremony until the turbine is up and operational
  • Long Haul Project – need a dedicated champion
  • Take photos and video
slide28

Do spare parts come with the wind turbine purchase?

  • Just because spare parts are new doesn’t necessarily mean they will work
  • Plan for technical and safety training – involve local emergency response personnel
  • An FAA ruling of presumed hazard is not the end of a project, it’s the beginning of negotiations
  • Ensure manufacturers are reputable and there are working wind turbine models in the US for several years
  • Select contractors who have experience with wind turbine planning and construction projects
  • Are anchor bolts sized correctly? Metric vs english conversions can cause problems
  • Provide site signage/directions to transportation companies and police details