Products & Services: Renewable Energy Solutions: Residential or Cottage: Hybrid Configurations

Overview

SWC RETS Systems: Hybrid Configuration
Click on the above image to view a larger
version of the same.
Hybrid systems are far more complex than stand-alone systems (i.e. wind turbine only or photovoltaic only), however their greatest advantage over the stand-alone systems, in particular in Canada, is the ability to approach 24-hour/day electrical energy generation by leveraging available energy during off-sunlight hours in the form of wind. A hybrid configuration composed of both wind turbine and photovoltaic technologies will enable the RETS to generate electrical energy on calm days by virtue of the photovoltaic system, and which also enable the RETS to generate electrical energy during the night by virtue of the wind turbine. However, as with the less than perfect weather predictions, there may be periodic occassions in which the sun is not shining nor is the wind blowing. For clients who wish complete grid-independence, the RETS architecture will include a diesel/gasoline electrical generator in its design to compensate the RETS during those periods of less than ideal weather conditions for effective renewable energy generation. Click to view details on "off-the-grid solution".

The configurations available below are designed to provide anywhere from 10% to approximately 100% of the energy needs of the client, all of which are grid-tied. The design of each configuration is based upon energy consumption of approximately 12,000 KWh/year. These configurations are scalable and therefore, for small to medium sized businesses, requiring a similar coverage, the architecture of each version can be modified to suit.

A RETS user, along with any configuration described below may enhance the positive economic benefit through employing a variety of energy conservation measures such as high-efficiency-low-energy light bulbs, and the replacement of older and energy inefficient appliances with Energy Star compliant appliances. Together with a RETS deployment and energy conservation measures, a RETS user may realize an additional savings of 5-20% energy per year.

The configurations available from SWC for hybrid RETS systems are the following (click on the one of interest) :

  • SWC-H : "entry" level system, contributing approximately 10% - 19% of the annual energy needs.
  • SWC-H25 : contributing approximately 23% - 33% of the annual energy needs.
  • SWC-H50 : contributing approximately 35% - 56% of the annual energy needs.
  • SWC-H75 : contributing approximately 60% - 90% of the annual energy needs.
  • SWC-H100 : contributing approximately +/- 100% of the annual energy needs.

Configurations

SWC-H

This configuration is an "entry" level deployment which enables the individual to generate approximately 10% - 19% of their energy needs (percentage of coverage based on approximately 12,000 KWh/year consumption - percentage of coverage scaled upwards or downwards depending on actual energy consumption determined at the site), servicing specific electrical loads (appliances, lights, electronics) to develop experience and appreciation in the renewable energy generation. The table below depicts the annual potential environmental benefits as a result of this RETS deployment. It is clear that renewable energy generation dramatically reduces the pollutants generated from traditional electrical energy production. The table below depicts emissions avoidance based on the indicated power generation fuel mix found in Ontario of nuclear:51%, hydro:22%, coal:19%, natural gas:7%, other:1%.

Annual Environmental Benefits of SWC-H
(Ontario fuel mix power generation)
GHG generation avoidance (lbs) : 944.5
SO2 (acid rain) generation avoidance (lbs) : 19.7
plutonium generation avoidance (lbs) : 0.4
high-level radioactive waste generation avoidance (lbs) : 48.4

In general, this configuration will include the following components for the system price indicated:

  1. front-end :
    • wind energy : one Bergey or Aeromax 1KW wind turbine and 22m guyed tubular-tower,
    • solar energy : 2 solar panels @ 80W with up to 160W production & roof-mounted rack (mounting approach may change due to orientation of house, angle of roof, etc.),
  2. balance of system (BOS) * : includes 1 inverter/charger (Xantrex DR 1524 **), turbine controller, photovoltaic charge controller (Xantrex, C-35), two safety DC disconnect-switches, lightening arrestor, 400W resistive load diversion,
  3. energy storage : 8 deep-cycle batteries (SPS 60AH @ 12V - delivering approx. 8 - 12 hrs ***), (battery array is optional, however, without a battery array, the RETS user may experience a power interruption should the grid fail during periods of no sunshine and no wind).
System Price & Costs Details :
  • SWC-H system price ¤ : $10,255 ¤¤
     
  • Net Metering optional (add approx. $600 - $1,000 for hardware and installation) - calculated potential energy credit: $28.58 - $219.88 ¤¤¤

    At this level of renewable energy generation, Net Metering may offer some benefit such as approaching a Net "0" electricial utility bill by virtue of extended periods of down-time or vacancy during which minimal energy draw is occurring. With the current scheme, and this particular configuration for a main residence or small business, in general, the small amount of surplus energy generated may not off-set the cost of the instrumentation and installation costs of Net Metering until well into its second or third year of operation, however, should the system be upgraded or expanded, the configuration is prepared to offer some additional economic benefit with respect to the upgrade.

Notes on the SWC-H :
The sliding percentage coverage of renewable energy of the 19% coverage @ 12,000 kWh/year consumption would equate to approximately 28% coverage @ 8,000 kWh/year consumption.
*SWC reserves the right to replace components due to their availability or unavailability with similar performing components, and therefore, base pricing may change. Current exchange rates may also affect base pricing for components sourced from the USA or Europe.
**The inverter sizing is based on a peak consumption of approximately 1 - 1.5 kW/h. Higher values determined during the feasibility analysis for peak consumption will require a larger inverter capacity and therefore, base pricing may change.
***values based on RETS coverage of approximately an average of 7KWh/day, and the capacity of the battery array calculated approximately 2.9KWh/day.
¤System price does not include costs of site preparation and RETS installation. See additional notes below for a description pertaining to these costs :

Site Preparation : The nature of installation of RETS is that there are no "standard" site preparation fees, as each site presents unique challenges. Attributes such as soil condition (rocky, sandy, clay, packed earth, wet), removal of obstructions (rocks, tree roots, obsolete cement structures), tower type, accessibility, and other unknown "surprises" all result in difficulties in standardizing the cost of excavation, cement, re-enforcing bars, sono-tubes, and labour as part of the tower foundation construction, or the trench excavation and back-fill for the placement of armoured/conduit cable(s) from the front-end components to the location of the BOS components and energy storage location. Therefore, as an unknown variable, this can be determined during the site analysis or more likely during feasibility analysis should the client wish to pursue a RETS deployment. Site preparation will be presented as a separate quote to the client.

RETS Installation : The system price indicated above does not include taxes, permits, transport of materials & system components, additional installation related materials such as wiring, external weather-proof/armoured cabling (e.g. TECK wire) or UV protected wiring, transfer switches, conduits (if applicable), AC sub-panel (if applicable), DC sub-panel (if applicable), housing for the battery array (if applicable), etc. which are determined per installation due to variations of each installation site. An approximate cost of RETS installation portion (other than taxes, permits, transport, battery array housing) for the SWC-H may range between $3,200 - $4,500 dependent upon the variety of challenges faced with each installation. The RETS installation estimate will form the second portion of the quote to the client, as the first portion is comprised of the system price.

¤¤Ontario offers an 8% rebate on the cost of the project for home renewable energy generation. The client must complete the form "General Application for Refund of Retail Sales Tax" and send it to the address provided on the form. The form can be obtained by clicking here or by calling the Tax Office with 877-482-9329, or from the nearest Ontario Ministry of Finance Tax Office. The form must be accompanied by detailed receipts. The client has up to four years from the date of purchase to submit the form.
¤¤¤Net Metering potential energy credit calculations based on a minimum load/downtime load of approximately 467 watts per hour over night (8 hours), and up to 24 days of minimum load/downtime load due to vacancy or little or no seasonal activity, and market spot price of KWh. Energy credits values will vary dramatically for each installation due to variations in availability of wind speed and insolation levels. Net Metering does not produce any cash value benefits, but rather energy credits applied to the utility bill. Click Net Metering to learn more details.

SWC-H25

This configuration is designed to generate approximately +/- 25% of the energy needs of the client, the range falling between 23% to 33% (percentage of coverage based on approximately 12,000 KWh/year consumption - percentage of coverage scaled upwards or downwards depending on actual energy consumption determined at the site). † The table below depicts the annual potential environmental benefits as a result of this RETS deployment. It is clear that renewable energy generation dramatically reduces the pollutants generated from traditional electrical energy production. The table below depicts emissions avoidance based on the indicated power generation fuel mix found in Ontario of nuclear:51%, hydro:22%, coal:19%, natural gas:7%, other:1%.

Annual Environmental Benefits of SWC-H25
(Ontario fuel mix power generation)
GHG generation avoidance (lbs) : 1,744.5 - 2,551.3
SO2 (acid rain) generation avoidance (lbs) : 35.0 - 51.2
plutonium generation avoidance (lbs) : 0.7 - 1.1
high-level radioactive waste generation avoidance (lbs) : 89.4 - 130.7

In general, this configuration will include the following components for the system price indicated:

  1. front-end:
    • wind energy : one Bergey or Aeromax 1KW wind turbine and 22m guyed tubular-tower,
    • solar energy: 4 - 10 solar panels @ 175W with production from 700W to 1,750W & roof-mounted rack (mounting approach may change due to orientation of house, angle of roof, etc.),
  2. balance of system (BOS) * : includes 1 inverter/charger (Xantrex DR 2424 **), turbine controller, photovoltaic charge controller (Xantrex, C-60), two safety DC disconnect-switches, lightening arrestor, 400W resistive load diversion,
  3. energy storage: 4 deep-cycle batteries (Surrette 650AH @ 6V - delivering approx. 18 - 24 hrs ***), (battery array is optional, however, without a battery array, the RETS user may experience a power interruption should the grid fail during periods of no sunshine and no wind).
System Price & Costs Details :
  • SWC-H25 system price ¤ : $18,465 - $29,338 (23% - 33%) ¤¤
     
  • Net Metering optional (add approx. $600 - $1,000 for hardware and installation) - calculated potential energy credit: $31.12 - $227.38 ¤¤¤

    At this level of renewable energy generation, it is economically viable to implement Net Metering, however, the small amount of surplus energy generated may not off-set the cost of the instrumentation and installation costs of Net Metering until well into its second or third year of operation.

Notes on the SWC-H25 :
The sliding percentage coverage of renewable energy of the 23% coverage @ 12,000 kWh/year consumption would equate to approximately 35% coverage @ 8,000 kWh/year consumption.
*SWC reserves the right to replace components due to their availability or unavailability with similar performing components, and therefore, base pricing may change. Current exchange rates may also affect base pricing for components sourced from the USA or Europe.
**The inverter sizing is based on a peak consumption of approximately 2.3 kW/h. Higher values determined during the feasibility analysis for peak consumption will require a larger inverter capacity and therefore, base pricing may change.
***values based on RETS coverage of approximately an average of 9kWh/day, and the capacity of the battery array calculated approximately 15kWh/day.
¤System price does not include costs of site preparation and RETS installation. See additional notes below for a description pertaining to these costs :

Site Preparation : The nature of installation of RETS is that there are no "standard" site preparation fees, as each site presents unique challenges. Attributes such as soil condition (rocky, sandy, clay, packed earth, wet), removal of obstructions (rocks, tree roots, obsolete cement structures), tower type, accessibility, and other unknown "surprises" all result in difficulties in standardizing the cost of excavation, cement, re-enforcing bars, sono-tubes, and labour as part of the tower foundation construction, or the trench excavation and back-fill for the placement of armoured/conduit cable(s) from the front-end components to the location of the BOS components and energy storage location. Therefore, as an unknown variable, this can be determined during the site analysis or more likely during feasibility analysis should the client wish to pursue a RETS deployment. Site preparation will be presented as a separate quote to the client.

RETS Installation : The system price indicated above does not include taxes, permits, transport of materials & system components, additional installation related materials such as wiring, external weather-proof/armoured cabling (e.g. TECK wire) or UV protected wiring, transfer switches, conduits (if applicable), AC sub-panel (if applicable), DC sub-panel (if applicable), housing for the battery array (if applicable), etc. which are determined per installation due to variations of each installation site. An approximate cost of RETS installation portion (other than taxes, permits, transport, battery array housing) for the SWC-H25 may range between $4,300 - $5,200 dependent upon the variety of challenges faced with each installation. The RETS installation estimate will form the second portion of the quote to the client, as the first portion is comprised of the system price.

¤¤Ontario offers an 8% rebate on the cost of the project for home renewable energy generation. The client must complete the form "General Application for Refund of Retail Sales Tax" and send it to the address provided on the form. The form can be obtained by clicking here or by calling the Tax Office with 877-482-9329, or from the nearest Ontario Ministry of Finance Tax Office. The form must be accompanied by detailed receipts. The client has up to four years from the date of purchase to submit the form.
¤¤¤Net Metering potential energy credit calculations based on a minimum load/downtime load of approximately 155 watts per hour over night (8 hours), and up to 24 days of minimum load/downtime load due to vacancy or little or no seasonal activity, and market spot price of KWh. Energy credits values will vary dramatically for each installation due to variations in availability of wind speed and insolation levels. Net Metering does not produce any cash value benefits, but rather energy credits applied to the utility bill. Click Net Metering to learn more details.

SWC-H50

This configuration attempts to generate approximately +/- 50% of the energy needs of the client, the range falling between 35% to 56% (percentage of coverage based on approximately 12,000 KWh/year consumption - percentage of coverage scaled upwards or downwards depending on actual energy consumption determined at the site). The table below depicts the annual potential environmental benefits as a result of this RETS deployment. It is clear that renewable energy generation dramatically reduces the pollutants generated from traditional electrical energy production. The table below depicts emissions avoidance based on the indicated power generation fuel mix found in Ontario of nuclear:51%, hydro:22%, coal:19%, natural gas:7%, other:1%.

Annual Environmental Benefits of SWC-H50
(Ontario fuel mix power generation)
GHG generation avoidance (lbs) : 2,725.8 - 4,317.6
SO2 (acid rain) generation avoidance (lbs) : 54.8 - 86.7
plutonium generation avoidance (lbs) : 1.2 - 1.8
high-level radioactive waste generation avoidance (lbs) : 139.6 - 221.1

In general, this configuration will include the following components for the system price indicated:

  1. front-end:
    • wind energy : two Bergey or Aeromax 1KW wind turbine and 22m guyed tubular-towers,
    • solar energy: 10 - 12 solar panels @ 208W with production from 2,080W to 2,496W & roof-mounted rack (mounting approach may change due to orientation of house, angle of roof, etc.),
  2. balance of system (BOS) * : includes 1 inverter/charger (Xantrex DR 2424 **), turbine controller, photovoltaic charge controller (Xantrex, C-60), two safety DC disconnect-switches, lightening arrestor, 400W resistive load diversion, PV combiner boxes x 2,
  3. energy storage: 4 deep-cycle batteries (Surrette 650AH @ 6V - delivering approx. 18 - 24 hrs ***), (battery array is optional (less $3,638.60), however, without a battery array, the RETS user may experience a power interruption should the grid fail during periods of no sunshine and no wind).
System Price & Costs Details :
  • SWC-H50 system price ¤ : $32,630 - $40,700 (35% - 56%) ¤¤
     
  • Net Metering optional (add approx. $600 - $1,000 for hardware and installation) - calculated potential energy credit: $37.72 - $458.14 ¤¤¤

    At this level of renewable energy generation, the economic viability to implement Net Metering, tends to derive more econimic benefit from Net Metering through the client's expectation with respect to approaching a "zero" energy consumption balance electricity bill, however, payback for the Net Metering installation and meter may occur within the 2nd or 3rd year of operation.

Notes on the SWC-H50 :
The sliding percentage coverage of renewable energy of the 35% coverage @ 12,000 kWh/year consumption would equate to approximately 56% coverage @ 8,000 kWh/year consumption.
*SWC reserves the right to replace components due to their availability or unavailability with similar performing components, and therefore, base pricing may change. Current exchange rates may also affect base pricing for components sourced from the USA or Europe.
**The inverter sizing is based on a peak consumption of approximately 2.3 kW/h. Higher values determined during the feasibility analysis for peak consumption will require a larger inverter capacity and therefore, base pricing may change.
***values based on RETS coverage of approximately an average of 9kWh/day, and the capacity of the battery array calculated approximately 15kWh/day.
¤System price does not include costs of site preparation and RETS installation. See additional notes below for a description pertaining to these costs :

Site Preparation : The nature of installation of RETS is that there are no "standard" site preparation fees, as each site presents unique challenges. Attributes such as soil condition (rocky, sandy, clay, packed earth, wet), removal of obstructions (rocks, tree roots, obsolete cement structures), tower type, accessibility, and other unknown "surprises" all result in difficulties in standardizing the cost of excavation, cement, re-enforcing bars, sono-tubes, and labour as part of the tower foundation construction, or the trench excavation and back-fill for the placement of armoured/conduit cable(s) from the front-end components to the location of the BOS components and energy storage location. Therefore, as an unknown variable, this can be determined during the site analysis or more likely during feasibility analysis should the client wish to pursue a RETS deployment. Site preparation will be presented as a separate quote to the client.

RETS Installation : The system price indicated above does not include taxes, permits, transport of materials & system components, additional installation related materials such as wiring, external weather-proof/armoured cabling (e.g. TECK wire) or UV protected wiring, transfer switches, conduits (if applicable), AC sub-panel (if applicable), DC sub-panel (if applicable), housing for the battery array (if applicable), etc. which are determined per installation due to variations of each installation site. An approximate cost of RETS installation portion (other than taxes, permits, transport, battery array housing) for the SWC-H50 may range between $5,300 - $5,900 dependent upon the variety of challenges faced with each installation. The RETS installation estimate will form the second portion of the quote to the client, as the first portion is comprised of the system price.

¤¤Ontario offers an 8% rebate on the cost of the project for home renewable energy generation. The client must complete the form "General Application for Refund of Retail Sales Tax" and send it to the address provided on the form. The form can be obtained by clicking here or by calling the Tax Office with 877-482-9329, or from the nearest Ontario Ministry of Finance Tax Office. The form must be accompanied by detailed receipts. The client has up to four years from the date of purchase to submit the form.
¤¤¤Net Metering potential energy credit calculations based on a minimum load/downtime load of approximately 155 watts per hour over night (8 hours), and up to 24 days of minimum load/downtime load due to vacancy or little or no seasonal activity, and market spot price of KWh. Energy credits values will vary dramatically for each installation due to variations in availability of wind speed and insolation levels. Net Metering does not produce any cash value benefits, but rather energy credits applied to the utility bill. Click Net Metering to learn more details.

SWC-H75

This configuration attempts to generate approximately +/- 75% of the energy needs of the client, the range falling between 60% to 90% (percentage of coverage based on approximately 12,000 KWh/year consumption - percentage of coverage scaled upwards or downwards depending on actual energy consumption determined at the site). The table below depicts the annual potential environmental benefits as a result of this RETS deployment. It is clear that renewable energy generation dramatically reduces the pollutants generated from traditional electrical energy production. The table below depicts emissions avoidance based on the indicated power generation fuel mix found in Ontario of nuclear:51%, hydro:22%, coal:19%, natural gas:7%, other:1%.

Annual Environmental Benefits of SWC-H75
(Ontario fuel mix power generation)
GHG generation avoidance (lbs) : 4,622.9 - 6,978.0
SO2 (acid rain) generation avoidance (lbs) : 92.9 - 140.2
plutonium generation avoidance (lbs) : 2.0 - 3.0
high-level radioactive waste generation avoidance (lbs) : 236.8 - 357.4

In general, this configuration will include the following components for the system price indicated:

  1. front-end:
    • wind energy: one 3KW wind turbine & 22m guyed tubular-tower,
    • solar energy: 8 - solar panels @ 208W - with production from 1,664W to 4,160W & roof-mounted rack (mounting approach may change due to orientation of house, angle of roof, etc.),
  2. balance of system (BOS) * : includes 1 inverter/charger (Xantrex DR 2424 **), turbine controller, photovoltaic charge controller (Xantrex, C-60), two safety DC disconnect-switches, lightening arrestor, 400W resistive load diversion, PV combiner boxes x 2,
  3. energy storage: 4 deep-cycle batteries (Surrette 650AH @ 6V - delivering approx. 18 - 24 hrs ***), (battery array is optional (less $3,638.60), however, without a battery array, the RETS user may experience a power interruption should the grid fail during periods of no sunshine and no wind).
System Price & Costs Details :
  • SWC-H75 system price ¤ : $36,311 - $59,833 (60% - 90%) ¤¤
     
  • Net Metering optional (add approx. $600 - $1,000 for hardware and installation) - calculated potential energy credit: $147.02 - $504.22 ¤¤¤

    At this level of renewable energy generation, the economic viability to implement Net Metering will derive an economic benefit from Net Metering with respect to approaching a "zero" balance electricity bill.

Notes on the SWC-H75 :
The sliding percentage coverage of renewable energy of the 60% coverage @ 12,000 kWh/year consumption would equate to approximately 94% coverage @ 8,000 kWh/year consumption.
*SWC reserves the right to replace components due to their availability or unavailability with similar performing components, and therefore, base pricing may change. Current exchange rates may also affect base pricing for components sourced from the USA or Europe.
**The inverter sizing is based on a peak consumption of approximately 2.3 kW/h. Higher values determined during the feasibility analysis for peak consumption will require a larger inverter capacity and therefore, base pricing may change.
***values based on RETS coverage of approximately an average of 9kWh/day, and the capacity of the battery array calculated approximately 15kWh/day.
¤System price does not include costs of site preparation and RETS installation. See additional notes below for a description pertaining to these costs :

Site Preparation : The nature of installation of RETS is that there are no "standard" site preparation fees, as each site presents unique challenges. Attributes such as soil condition (rocky, sandy, clay, packed earth, wet), removal of obstructions (rocks, tree roots, obsolete cement structures), tower type, accessibility, and other unknown "surprises" all result in difficulties in standardizing the cost of excavation, cement, re-enforcing bars, sono-tubes, and labour as part of the tower foundation construction, or the trench excavation and back-fill for the placement of armoured/conduit cable(s) from the front-end components to the location of the BOS components and energy storage location. Therefore, as an unknown variable, this can be determined during the site analysis or more likely during feasibility analysis should the client wish to pursue a RETS deployment. Site preparation will be presented as a separate quote to the client.

RETS Installation : The system price indicated above does not include taxes, permits, transport of materials & system components, additional installation related materials such as wiring, external weather-proof/armoured cabling (e.g. TECK wire) or UV protected wiring, transfer switches, conduits (if applicable), AC sub-panel (if applicable), DC sub-panel (if applicable), housing for the battery array (if applicable), etc. which are determined per installation due to variations of each installation site. An approximate cost of RETS installation portion (other than taxes, permits, transport, battery array housing) for the SWC-H75 may range between $6,300 - $7,155 dependent upon the variety of challenges faced with each installation. The RETS installation estimate will form the second portion of the quote to the client, as the first portion is comprised of the system price.

¤¤Ontario offers an 8% rebate on the cost of the project for home renewable energy generation. The client must complete the form "General Application for Refund of Retail Sales Tax" and send it to the address provided on the form. The form can be obtained by clicking here or by calling the Tax Office with 877-482-9329, or from the nearest Ontario Ministry of Finance Tax Office. The form must be accompanied by detailed receipts. The client has up to four years from the date of purchase to submit the form.
¤¤¤Net Metering potential energy credit calculations based on a minimum load/downtime load of approximately 155 watts per hour over night (8 hours), and up to 24 days of minimum load/downtime load due to vacancy or little or no seasonal activity, and market spot price of KWh. Energy credits values will vary dramatically for each installation due to variations in availability of wind speed and insolation levels. Net Metering does not produce any cash value benefits, but rather energy credits applied to the utility bill. Click Net Metering to learn more details.

SWC-H100

This configuration attempts to generate approximately +/- 100% of the energy needs of the client (percentage of coverage based on approximately 12,000 KWh/year consumption - percentage of coverage scaled upwards or downwards depending on actual energy consumption determined at the site). The table below depicts the annual potential environmental benefits as a result of this RETS deployment. It is clear that renewable energy generation dramatically reduces the pollutants generated from traditional electrical energy production. The table below depicts emissions avoidance based on the indicated power generation fuel mix found in Ontario of nuclear:51%, hydro:22%, coal:19%, natural gas:7%, other:1%.

Annual Environmental Benefits of SWC-H100
(Ontario fuel mix power generation)
GHG generation avoidance (lbs) : 7,741.2
SO2 (acid rain) generation avoidance (lbs) : 155.5
plutonium generation avoidance (lbs) : 3.3
high-level radioactive waste generation avoidance (lbs) : 396.5

In general, this configuration will include the following components for the system price indicated:

  1. front-end:
    • wind energy: one 7.5KW wind turbine & 22m guyed tubular tower),
    • solar energy: 6 solar panels @ 123W with production from 738W & roof-mounted rack (mounting approach may change due to orientation of house, angle of roof, etc.),
  2. balance of system (BOS) * : includes 1 inverter/charger (Xantrex DR 2424 **), turbine controller, photovoltaic charge controller (Xantrex, C-60), two safety DC disconnect-switches, lightening arrestor, 400W resistive load diversion, PV combiner boxes x 2,
  3. energy storage: 4 deep-cycle batteries (Surrette 650AH @ 6V - delivering approx. 18 - 24 hrs ***), (battery array is optional, however, without a battery array, the RETS user may experience a power interruption should the grid fail during periods of no sunshine and no wind).
System Price & Costs Details :
  • SWC-H100 system price ¤ : $80,410 ¤¤
     
  • Net Metering optional (add approx. $600 - $1,000 for hardware and installation).

    At this level of renewable energy generation, the economic viability to implement Net Metering is diminished by the fact that under the current scheme, one is able to transfer surplus energy to the grid and is less than or equal to the amount of energy consumed, however, given this configuration is approaching 100% renewable energy production, there is little or no "room" left for the purpose of Net Metering and therefore, the proposed standard offer contract would be more financially beneficial.

Notes on the SWC-H100 :
The sliding percentage coverage of renewable energy of the 100% coverage @ 12,000 kWh/year consumption would equate to approximately 154% coverage @ 8,000 kWh/year consumption, meaning an opportunity for the anticipated standard offer contract of approximately +/- $400 revenue for the surplus energy generated.
*SWC reserves the right to replace components due to their availability or unavailability with similar performing components, and therefore, base pricing may change. Current exchange rates may also affect base pricing for components sourced from the USA or Europe.
**The inverter sizing is based on a peak consumption of approximately 2.3 kW/h. Higher values determined during the feasibility analysis for peak consumption will require a larger inverter capacity and therefore, base pricing may change.
***values based on RETS coverage of approximately an average of 9kWh/day, and the capacity of the battery array calculated approximately 15kWh/day.
¤System price does not include costs of site preparation and RETS installation. See additional notes below for a description pertaining to these costs :

Site Preparation : The nature of installation of RETS is that there are no "standard" site preparation fees, as each site presents unique challenges. Attributes such as soil condition (rocky, sandy, clay, packed earth, wet), removal of obstructions (rocks, tree roots, obsolete cement structures), tower type, accessibility, and other unknown "surprises" all result in difficulties in standardizing the cost of excavation, cement, re-enforcing bars, sono-tubes, and labour as part of the tower foundation construction, or the trench excavation and back-fill for the placement of armoured/conduit cable(s) from the front-end components to the location of the BOS components and energy storage location. Therefore, as an unknown variable, this can be determined during the site analysis or more likely during feasibility analysis should the client wish to pursue a RETS deployment. Site preparation will be presented as a separate quote to the client.

RETS Installation : The system price indicated above does not include taxes, permits, transport of materials & system components, additional installation related materials such as wiring, external weather-proof/armoured cabling (e.g. TECK wire) or UV protected wiring, transfer switches, conduits (if applicable), AC sub-panel (if applicable), DC sub-panel (if applicable), housing for the battery array (if applicable), etc. which are determined per installation due to variations of each installation site. An approximate cost of RETS installation portion (other than taxes, permits, transport, battery array housing) for the SWC-H100 may range between $6,700 - $10,500 dependent upon the variety of challenges faced with each installation. The RETS installation estimate will form the second portion of the quote to the client, as the first portion is comprised of the system price.

¤¤Ontario offers an 8% rebate on the cost of the project for home renewable energy generation. The client must complete the form "General Application for Refund of Retail Sales Tax" and send it to the address provided on the form. The form can be obtained by clicking here or by calling the Tax Office with 877-482-9329, or from the nearest Ontario Ministry of Finance Tax Office. The form must be accompanied by detailed receipts. The client has up to four years from the date of purchase to submit the form.


 


Copyright © 2006 SOLAR WIND Canada Inc. All Rights Reserved