minnesota power – energy & engineeringsburns/ee1001fall2012/umd_ee_1001_9-27-12[1]re… ·...

Minnesota Power –

Energy & EngineeringIntroduction to technical aspects of renewable (Wind & Water) energy systems

and discussion of skills and abilities to achieve as engineers.

MP Background & My Role

UMD Engineering Graduates –

MP EmployeesAl Rudeck (ChemE) –

VP of Generation *Caleb Siffring (EE) –

Engr

SvcsBob Ardren (EE) –

TelecommThomas Connolly (EE) –

Boswell

MP Engineering ShadowRob Toland –

Central HS (Duluth)

*Kris Wiire

(EE) –

Telecomm

MP Engineering InternQuinten Johnson –

Engr

Svcs

MP’s oldest Generation – 1895

Operation –Run of River/Ponding

Dam Safety

Mechanical/Electrical Protections

Water Power

Minnesota Power –

Energy & Engineering

Minnesota Power –


Thomson Hydro

-

Development Studies

-

Land Acquisition

- Site Suitability

-

Turbine Supplier & TSA

- Select WTG Platform & OptionsEnergy = 1/2 * p * A * v^3

Minnesota Power –

Energy & EngineeringWind Power

-

Site Layout

-

Roads, Turbine Siting

& Foundations

- Collection System & Communication

-

Substation & Transmission

-

Logistics

Minnesota Power –


- Contracts

- Sitework

-

Foundations

-

Electrical Infrastructure

-

Turbine Erection

Minnesota Power –


-

Commissioning & Operation

Tac

Ridge Overview…

Regulatory & Environmental Benefits

MN Energy Act 2007 - Minnesota Power must provide renewable energy in proportion to retail electric sales:

12% by 2012

17% by 2016

20% by 2020

25% by 2025

Help Reduce MP’s Carbon (CO2) Footprint

Build & Expand Upon MP Core Competencies

MP has many of the necessary core competencies to own, maintain and operate the wind farms

Most viable option to achieve growth in renewable energy for MP.

MP will pursue other renewable options (Wind, Water, Wood)

Clipper Wind Turbine Technical Highlights

Liberty Series 2.5 MW

2.5 MW Total, 4 - 625 KW Generators - DC→AC

96 m Rotor Diameter (315 feet)

80 m Tower Height (262 feet) – 4 Sections, Tapered 14.5’ to 10’ Diameter

Cut-in velocity – 4 m/s, Cut-out Velocity – 25 m/s

2 metric ton jib hoist / roll-up door

Service lift

Cold weather package (-40 C)

Oil containment at the yaw deck

Clipper Wind Turbine Components

Project Pictures

Clipper Wind Turbine Components

Project Pictures

-

Turbines & Engineers

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How is the Energy Produced?

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Storage?

-

How Operate?

-

Maintenance

-

Worldwide Industry

Minnesota Power –


-

Current Generation & Future Plans

Rising from the Ashes: Redeveloping the Prairie River Project

The Prairie River Project

•

A little project background…–

Prairie River Hydro•

Built in 1920 by Blandin

Paper Company•

Total capacity 1084 kW•

Operator’s residence –

upper level

•

MP Purchased in 1982•

Partially automated –

run from Thomson Hydro

•

Routine maintenance until 2008 when…

The Prairie River Project

•

A little project background…–

Prairie River Hydro•

Built in 1920 by Blandin

Paper Company•

Total capacity 1084 kW•

Operator’s residence –

upper level

•

MP Purchased in 1982•

Partially automated –

run from Thomson Hydro

•

Routine maintenance until 2008 when…

•

Fire destroyed the powerhouse

The Prairie River Project – Rebuild Study

•

Original Project Background ––

Selected HDR Engineering•

Study included 4 Options•

Option 1 –

Rebuild “like-kind”

no T1 work–

Only for insurance settlement negotiation•

Option 2 –

Rebuild same generation, least cost structure & crane including T1 overhaul

–

Additional generation with turbine efficiency improvements, approximately 10% more MWh

•

Option 3 –

Rebuild at most efficient generation for watershed–

Not practical –

licensing, reconstruction, lower generation

•

Option 4 –

Decommission/Sell–

Non-rate base, shareholder responsibility, negative public relations

•

Recommendation and Decision -–

Rebuild the facility•

“Least cost”

powerhouse with overhead crane•

Improved Safe Work Practices•

Overhaul Turbine 1•

Arc Flash Compliance•

Modern Equipment/Automation/PDM/Reliability•

Security Enhancements

–

Benefits•

Increased renewable generation over “as was”

condition•

Positive impact on shareholders, ratepayers maintain renewable energy diversity

•

Lower ongoing operational costs•

Positive public relations•

Construction jobs

The Prairie River Project – Rebuild Study

•

Expanded ‘Least Cost’

Structure -–

Design & Engineering•

SHPO•

Exterior Aesthetics

The Prairie River Project – Powerhouse

•

Security -

Access•

Crane –

Truck Bay•

Switchgear, Generator & Mezzanine Levels

•

Rebuilding the Powerhouse

The Prairie River Project – Out of the Ashes

Engineering

-

Problem Solvers

- Experts?

-

Responsibility

- Team

-

Knowledge & Information Seekers

-

Continuous Improvement

Main Ingredient to be successful??

COMMUNICATION

-

Black Box Thinkers?

Minnesota Power –


Questions or Thoughts from the Audience?

minnesota power – energy & engineeringsburns/ee1001fall2012/umd_ee_1001_9-27-12[1]re… ·...

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