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NTPC RENEWABLE ENERGY PROJECTS SUCCESS, CHALLENGES AND PERSERVERANCE
September 15-17, 2015
Remote Microgrid Conference
Yellowknife, NT
Geraldine Byrne, Acting Manager, Energy Service, NTPC
Ian Flood, Project Manager, Engineering, NTPC
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NTPC 2013/14 Power Generation
Hydro 75%
Diesel 22%
Natural Gas <1%
Purchased 3%*
Solar <1%
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NTPC 2014/15 Power Generation
Hydro 61%
Diesel 34%
Natural Gas 3%
Purchased 3%*
Solar <1%
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Hydro 54%
Diesel 40%
Natural Gas 4%
Purchased Power 3%
Solar <1%
NTPC 2015/16 Q1 Power Generation
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Energy Supply – Large Wind
Wind Energy Feasibility (GNWT)
• Inuvik and outside Yellowknife
(Snare System)
• Inuvik: Storm Hills & Inuvik
High Point
• Monitoring at Snare and Inuvik
• Potentially 7-10MW
Expression of Interest
Solar Photovoltaic (PV) Power
How are we doing?
Total: 247.5 kW (2103)
Total: NOW > 545kW
kWh/kW
Existing Solar PV Installations Sachs Harbour- 4.3kW
Inuvik- 5kW; 7kW; 2kW; 3.5kW; 10 kW;10kW
Paulatuk- 5kW; 1.7kW
Fort Good Hope- 5kW
Norman Wells- 2.9kW
Wekweeti- 4.2kW
Whati- 5kW
Fort Simpson- 104.2kW; 5kW; 5kW
Gameti- 5kW
Nahanni Butte- 4.8kW
Jean Marie River- 1.3kW
Behchoko- 4.8kW; 5kW
Yellowknife- 2kW; 5kW;
5kW; 1.8kW; 1.3kW; 33.5kW
Fort Smith- 0.5kW
Hay River- 1kW; 1.7kW
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Renewable Energy Initiatives
Net Billing 2010 / Net Metering 2013
Success: NTPC 55kW of installed solar capacity
(NUL 40kW)
Customer: Positive return banking credit at 1:1
Utility: Capacity building
Challenge /Perseverance:
Slow uptake / Administration
IPP – Lutsel K’e Dene First Nation
Success: PPA flexible option to meet community
needs; Solar Energy Strategy
Challenge /Perseverance: Policy
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104kW Solar PV – Fort Simpson Success: (2012)
• First Utility-Scale Low Penetration (solar system production
12% average community load)
• Saves 27,900 L diesel fuel or 76 tonnes GHG / Yr.
• Made possible through GNWT funding
• No vandalism
Challenge:
• Solar production is less that 2% annual consumption
• 2.2 million L / Yr. in diesel fuel required to meet load
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Colville Lake Community
• Located: Sahtu Region
• 745 km by air NW of Yellowknife
• Population: 147
• Average Load: 50 kW
• Peak Load: 150 kW
• Challenge: Remote, economies
of scale, during summer months air
access only; one of the highest cost
communities to serve
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Challenge
• Oldest NTPC plant 24 years
• Settling issues
• Reliable, stable power challenging to provide
• Load size
• Changing load characteristics
• No longer meeting (Required Firm Capacity)
RFC criteria
Why New Power Plant?
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Success: Meeting some needs of the community:
• Relocate diesel plant
• Reduced noise /odour in community/ reduce GHG’s
• Employment during construction and decommissioning of old
plant and relocation of fuel tanks
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136.5kW Solar PV – Colville Lake
Solar / Diesel Production Modelling
0% 20% 40% 60% 80% 100%
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
Solar
Diesel
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Demonstration Project
Challenge:
Permit Application?
What is a demonstration project?
Perseverance:
Projected 1% rate increase to thermal region. (.
6% power plant; . 4% Solar and BESS)
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136.5kW Solar PV – Colville Lake • Phase I Solar 54kW (October 2014)
• Phase II Solar 82.5kW (June 2015)
• 112MWh expected solar generation
Success:
• No shipment damage to solar panels
• On schedule on budget
• Capacity building / relationship building
• Cost/ kW installed solar reduced $12.20/W from
Fort Simpson (Phase I) to Colville Lake (Phase II) $6.34/W
• 31,600 L diesel fuel or 86 tonnes GHG / year
• Average diesel consumption is 160,000L
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Challenges
Edmonton plant build duration:
Deteriorating winter road conditions
Switch gear build – wrong parts
Engine testing before dispatch
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Challenges
Short construction season: Early June before work starts on solar phase II
Predetermined location rather than choose a site
Load bearing survey of whole runway - exact location unspecified
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Challenges
Schedule on site:
Shipping damage assessed
Further engine testing
On site availability of SAFT & ABB field engineers
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Challenges
Meeting the budget:
Demonstration/pilot project
Extras not initially envisioned
NTPC Labour costs 570
Transporation & accommodation 244
Consultants 224
Contractors 2,648
Diesel engines 196
Accessory electrical equipment 436
Battery bank 984
Solar panels 934
Federal funding -150
Territoral funding -1,145
Overhead (22%) 1,311
Sub-total 6,252
IDC (5.68%) 353
Total 6,605
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PERSERVERANCE:
Sourcing a Battery Supplier:
First winning proponent declared bankruptcy
RFP process repeated
Engine testing:
Usual bugs in systems before real progress
Shipping date brought forward
Reduced time to dismantle and pack plant
Damage After Shipping:
Reduced speed during shipping
Damage to switch gear and some engine systems
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SUCCESSES:
Contractors:
Plant build - Adco Power Ltd – northern experience
Solar - Azgard Corporation and Green Sun Rising
Battery Module &Controls - SAFT Batteries & ABB Inc
B.A.F.N.– construction support
Testing and commissioning:
Successful testing of batteries and diesel
Successful testing of PV curtailment
Powering community soon: