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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 –

Electrical Energy

diesel/gas:

85 GWh

hydro:

264 GWH

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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:

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From This…….

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To This…..

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THANK YOU – ANY QUESTIONS?