St. Joseph School

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ENMAX Generate Choice:

Solar PV and Wind

Green Solutions

The Power to Educate!

The Journey• Successful grant application submitted to BP energy for $10,000 to purchase a

solar array and 20 iPods.• Attended BP energy conference in Aug. 2011• After initial estimates on a solar array from Lethbridge Battery found out there would

not be enough money to put up the array. • Using a contact from the conference decided to call Enmax to see if their generate

choice program could be extended from residential applications to the school. They adapted the program to assist us with a cost effective solution. First mention of Possible wind turbine for St. Joseph School.

• Several extensive efforts between Enmax, MPE Engineering and myself to determine a viable way to accommodate solar array (Sept-Nov 2011).

• Continued talks with gen-e staff at Enmax spurred another conference invite put on by Enmax (Nov 2011).

• Enmax selects St. Joseph School as one of there target schools for a Sky Stream wind turbine (Nov 2011).

• Enmax sends out contractor to evaluate site. Given thumbs up as excellent location (Nov 2011).

• St. Joseph school installs weather station to set the stage for activities that compare alternative energy output to weather conditions.

• Enmax calls Town of Coaldale for permits for both solar array and wind turbine, neither exist at this point though the town assures me they will be ready by Apr 2012. Project put on hold.

• Enmax sends me an email telling me they are still willing to assist with solar array, but will not be in a position to offer the wind turbine as there financial picture needs to be closed by the end of Dec 2011.

• Panic call to Town of Coaldale pleading for assistance in order to not lose the wind turbine project valued at $10,000.00

• Meeting today

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ENMAX - Generate Choice

What is Generate Choice?

Renewable energy program for homeownersLease of solar PV and micro-wind turbines

What is the purpose?Making renewable energy easy for homeownersTake advantage of provincial government support (CCEMC funding)

ENMAX Generate Choice

Why is ENMAX doing this?

Eliminate market barriers for average consumers• Turn-key solution, including permitting • Maintenance free during the term • Low capital cost

Create a renewable energy industry in AB• Supports “green job” creation across the spectrum  • Volume demand • Academic education by partnering with SAIT, NAIT and

Lethbridge College

Promote renewable energy technologies• ENMAX Gen-E program (youth education) Link• Video outlining Gen-E program Password: GEN1234 • Employee pilot program• Various workshops (Calgary Zoo)

What it looks like:

Residential PV Collectors

Rated Capacity 1.2 to 1.3 kW

Weight 200-300 lbs (2 lb/sq ft)

Height Less than 12” (30 cm)

Surface area 10 m2 (6m x 1.5m)

Grid feeding 120/240VAC 50-60 Hz

Auto disconnect No power to grid when power fails (for safety)

Tracking Web-based monitoring of system production

Other No high voltage DC; wired into electrical panel AC branch circuit

What it looks like:

Skystream 3.7 Wind Turbine

Rated Capacity 2.4 kW

Weight 205 lbs

Height 33 ft (10 m) hub height

Blade radius 6 ft (total height 39 ft)

Grid feeding 120/240VAC 50-60 Hz

Braking system Electronic stall regulation

Tracking Wireless 2-way monitoring

Survival wind speed 225 kph

Noise 55 dB at 58 feet

How loud is 55 dB? Click here to find out.

Generate Choice: Solar and Wind

100 ft10 m

33 ft

Micro Wind

Skystream 3.7Residential-scale wind turbine (2.4 kW)

Scale comparison of typical bungalow to micro wind turbine

Typical Installations

Proposed location for Wind Turbine at St. Joseph School

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B

Parameters for ‘Typical’ ENMAX Installations

Rooftop PV Micro-Wind

Height Less than 30 cm high and parallel to roof

Less than 20m (hub height)

Currently 10m (33 ft)

Size 1.5m x 6m (~10 m2 or less than 100 sq ft)

200-300 lbs (150 kg), or about 2 lbs/sq ft

200 kg (hub & rotor), steel screw pile and steel monopole (similar to light post)

Location On house or garage; not sticking out from roof line

At least 1x pole height from property line

Safety CSA and/or UL certified equipment CSA and/or UL certified equipment

Micro-Gen Scale

Scaled for electricity to be used on site

Scaled for electricity to be used on site

Package for Permits

For Electrical Permit: Single line drawing of wiring and safeguards Product spec sheets for electrical inspector (left on-site)

Additional Documentation Completed ENMAX Site Assessment form Product information sheet from ENMAX describing the product and

mounting method Plan drawing or sketch of turbine location (lat/long, relative location to

buildings, roads, etc) Completed NAV Canada Land Use Proposal, Transport Canada

Aeronautical Obstruction Clearance, and Alberta Transportation Roadside Development Application for Development Near a Primary Highway

Homeowner contacts ENMAX, has property assessed for suitability, and signs contract

ENMAX contractor visits site and fills out Site Assessment Form ENMAX and contractor

apply for permits and submit information to municipality

Municipality issues permits, schedules inspections

Contractor installs equipment;

Municipal inspector visits site and inspects installation

ENMAX conducts QA/QC inspections and maintains systems over term of lease

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Flow of work

Examples from other Municipalities in Alberta

Municipality Parameters

MD Foothills No DP for one turbine if under 16 m hub height (52 ft)

Vulcan County No DP if hub height less than 40 ft (12 m) and at least 10m from building

Clearwater County No DP if not close to neighbours and hub height lower than 15m (50 ft)

Rockyview County No DP if for personal use

County of Lethbridge DP required;

MD of Pincher Creek DP required;

Calgary Zoo