Design Proposal
Design and Supply Solar PV Car Canopy
Tarbet Visitor Site – G83 7DQ
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The Project
our ref:
KSJ-0023
Client
Client Name:
LUC
Building Name/Number:
250
Address 1:
Waterloo Road
Address 2:
Town/City:
London
County:
Post Code:
SE1 8RD
Client Ref:
Client Brief
To design and supply a timber modular Solar PV carport system to curve with the carpark layout, ideally to be open fronted and constructed of British timber. Suitable for EV charger bays. To be supplied in stages.
PLEASE NOTE: Variations from the brief...
TIMBER: Due to the forces that the structure is subject to, it is not possible to to construct a timber carport without legs at the front of the structure. These legs would need to be placed every other parking bay and of course would represent a significant obstacles within the carpark. We therefore offer an alternative solution. Should you wish to consider an all timber carport with legs to the front of the structure please do let us know and we would be happy to design and cost that option.
CURVE: Please see Site Notes for the proposed layout for the parking bays and structure. In order to creat the structure to meet your exact parking layout as is would so significantly increase the cost of this product to the point that we would not consider it viable. It would however be possible to add an additional kink between sections 1 and 3 and also between sections 2 and 4. This kink would have to be fairly minimal but would be possible. In order to meet your deadline we have (for now) not included this kink in this proposal.
PARKING LAYOUT: Please note that we have altered your proposed parking plan. We have reduced your parking capacity here from 20 vehicles to 16. The reason for this is due to some EVs charging from the sides, it is therefore recommended to leave a marked access zone between EV parking bays. Combined with the requirements for providing facilities to people with disabilities we have made all your EV bays with a 1200mm marked access zone between. Please see Site Notes for more information.
Please also note the foundations required for each leg. It is therefore highly recommended to install ALL 4 phases of concrete pads and the full length of the curbed area before any tarmac is laid.
Phase 1
42 x 410 Wp REC Solar PV Panels
Total 17.22 kW
Parking for 4 EVs with charge facilities.
Phase 2
84 x 410 Wp REC Solar PV Panels
Total 34.44 kW
Parking for 8 EVs with charge facilities.
Phase 3
126 x 410 Wp REC Solar PV Panels
Total 51.66 kW
Parking for 12 EVs with charge facilities.
Phase 4
168 x 410 Wp REC Solar PV Panels
Total 68.88 kW
Parking for 16 EVs with charge facilities.
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The Site
G83 7DQ
Site Address
Site Client:
Loch Lomond &The Trossachs National Park
Building Name/Number:
Tarbet Visitor Site
Address 1:
Address 2:
Town/City:
Tarbet
County:
Dunbartonshire
Post Code:
G83 7DQ
Site Ref:
12171
Notes On The Site
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Parking Layout |
|
Parking Bay Sizes: When assessing the area needed for staff and customer parking, it should be noted that the current UK norm for parking spaces is 2.4m wide by 4.8 m long. However please note that several models of modern vehicles are more the 4.8m long. The recommended space for manoeuvring (roadways) between bays is 6m. These dimensions are neither minimum nor written in tablets of stone, and may be revised to suit your particular needs, but remember that good access and wider bays aids efficient use of the parking area. KaraSolar will use a standard size parking bay of 2.5m wide by 5.0m long unless stated otherwise. For more information on parking in the UK visit: The British Parking Association Bay Sizes For Motorists With Disabilities: The BSI British Standards Code provides some guidance as to what is required - disabled access parking spaces should be 2400mm x 4800mm with a 1200mm wide marked access zone between spaces and a 1200mm wide safety zone for boot access. Government guidelines (Inclusive Mobility published by DfT) recommend that 6% of parking should be allocated to disabled people, unless otherwise covered by local planning regulations. The guidance also recommends how to identify these spaces, with special markings and signage. EV Charger Bay Sizes: It is recommended to leave additional access zones between parking bays intended for EV Charging. This allows for some vehicles that plug and charge from the side. These bays should also be clearly marked and include eye level signage. Disabled EV Charger Bays: As the number of electric vehicles in the UK grows as will the requirement for EV charger bays. There are currently no guidelines on providing disabled parking bays with EV chargers so we highly recommend creating EV charger bays with the required 1.2m marked area between the bays and thus automatically making all your EV charger bays suitable for people with disabilities. |
With the above in mind we recommend the following parking layout per section/phase:
PLEASE NOTE: Each structure leg requires a foundation of a 3400 x 2500 x 750mm dp cage reinforced concrete pad using H16 bars @ 175mm crs in both directions top & bottom. It is highly recommended in order to future-proof the additional phases, ALL the concrete pads and the full length of the curbed areas should be installed for the entire project before any tarmac is laid. We can then remove the fill from the curbed area in order to easily install the future phases structure's legs and the required cabling without the need to disturb any tarmac or the surrounding landscape.
Site Assumptions
Our initial comments, proposals and quotes are intended as a guideline only and are subject to a site survey. We have made some assumptions in order to calculate this proposal. You will find a list of these assumptions and the end of 'The Proposal'.
The Structure(s)
Version 1.0
Notes On The Structures - Version 1.0
As previously mentioned we have concluded it is unfortunately just not possible to create a carport from timber only that would not require supporting legs on both sides of the structure. If you were to consider placing support legs at every other bay we would be happy to create that option for you.
We therefore would like to propose an alternative. We appreciate this option is not inline with your brief but is rather what we would consider a good compromise.
The structure would be a variation of the Indra carport made from H section British steel. The insets of the H sections would then be inlayed with your choice of timber. We would recommend Douglas Fir or Larch, however if budgets would allow it would look stunning in green oak. We would also be very happy to see if we could get the timber from the Loch Lomond area, otherwise we guarantee it will be British Timber.
The steel work can be coloured to blend in with the environment or brand (painted or powder coated) or even plastic wrapped if required with patterns, advertising or branding. It would also be possible to clad the remaining steel in timber to completely hide all the steel work.
Should this proposal and estimate be acceptable we will of course provide full structural engineers drawings and specs. We are currently working on 3D models for this structure and should have them available by the end of June, we will of course also forward these to you as soon as they are complete.
Structural steelwork is to be in accordance with the National Structural Steelwork Specification for Building Construction (latest edition).
All structural steelwork to be hot rolled mild steel Grade S355, and all mild steel plates to be Grade S275 to BS EN 10025 (latest edition), unless noted otherwise. All bolts and nuts to be Grade 8.8 to BS 4190 (latest edition), unless noted otherwise.
All bolts to have washers to BS 4320 (latest edition), under the nuts. All internal bolts, nuts and washers are to be sherardized to BS EN 737-8 (latest edition) so that no additional painting is required after erection.
All external bolts are to be hot dip galvanized to BS 7371-6 (latest edition). Where splice connections have been noted, all bolts to be High Strength Friction Grip (HSFG) bolts. All steelwork below ground to receive a high build epoxy coating to give a dry film thickness of minimum 450μm.
Any protective coatings either damaged or removed during transit, handling or erection shall be made good by the contractor to a standard to match the original. All steelwork to be hot dip galvanized in accordance with BS EN ISO 1461 to a dry film thickness of 85μm. Steelwork fabricator to make allowance for all required vent holes for sealed sections. Make good any damage to galvanized elements including site drilling holes with FOSROC Galvafroid after firstly mechanically taking back all paints, finishes, grease, oil, etc to bare white metal.
 All shop welding to be 8mm F P F W unless noted otherwise, classification E42 in accordance with BS EN 1011-1 and BS EN 1011-2. Site welding is not permitted unless written approval is obtained from XCE. All welds to be tested using non-destructive methods in accordance with the NSSS specification (latest edition).
Baseplates and holding down bolts are to be designed and detailed in accordance with BS 449 or BS 5950 (latest edition). Bolt box assemblies are to be supplied by the steelwork contractor and cast in by the main contractor to the dimensions and levels indicated on the drawings. Base plates that have an area greater than 0.5m2 will require 50mm dia. grouting vent holes to be cut. If it is intended that grout is to be poured through these holes they will need to be increased to 100mm dia. Position of holes is to be determined by the steelwork contractor and should not affect the structural integrity of the connection.
Grouting below base plates shall be a minimum thickness of 25mm using FOSROC Conbextra GP or HF cementitious non-shrink grout or similar approved.
Isolation washers, bushes and pads are required to be installed in all connections between stainless steel and mild steel to prevent bimetallic corrosion under atmospheric conditions, in accordance with BS PD 6484
Colour Options
LED Lighting
Guttering
Security Cameras
Optional Additional Features
please do let us know if you would like your solar structure to include any of these additional features
Your solar PV carport and canopy is designed in the UK.
Made in Southwest England and built using British Steel.
Made in Southwest England and built using British Steel.
The Solar System
Version 1.0
Notes On The Solar System - Version 1.0
168 x REC Twin Peak 5 Series 410Wp - White
Total Solar Power Rating
68.88 kW
132 half-cut mono c-Si p-type cells, 6 strings of 22 cells in series
20 Year Product & 25 Year Power Warranty
Building on REC's long experience with half-cut cell technology, the REC TwinPeak 5 Series uses p-type monocrystalline cells, offering an even greater efficiency and power, making this Series suitable for all applications and system sizes, anywhere in the world!
Find Out More
Version 1.0
The system performance chart is an estimate of what you could expect your solar system to generate.
- The orange bar represents the expected kWh per day your system should create
- The grey background represents your current (or projected) kWh power usage.
Your projected usage is currently set to kWh 0 per month.
If you would like to change the projected usage amount please just let us know.
Your projected annual solar power generation: 54897 kWh.
Your projected solar performance at phase 1
17.22 kWÂ Total Solar Power
42 x 410 Watt Panels (REC410TP5)
13,673 kWh per year
Your projected solar performance at phase 2
34.44 kWÂ Total Solar Power
84 x 410 Watt Panels (REC410TP5)
27,449 kWh per year
Your projected solar performance at phase 3
51.66 kWÂ Total Solar Power
126 x 410 Watt Panels (REC410TP5)
41,121 kWh per year
Your projected solar performance at phase 4
68.88 kWÂ Total Solar Power
168 x 410 Watt Panels (REC410TP5)
54,897 kWh per year
Product & Performance Warranty
20 year product warranty*: covers panel and carport defects.
20 year labour warranty*: gives added peace of mind and protection.
25 year performance warranty: ensures panels perform exactly as they’re expected to, every year for 25 years.
At least 92% of nameplate power in year 25; an industry best.
Unprecedented savings, more economic security, and greater energy autonomy for consumers.
*when installed by KaraSolar Ltd or one of our affiliated contractors, requires regular maintenance.
BYD Battery Box Premium LVS
The BYD Battery-Box Premium LVS is a modular lithium iron phosphate (LFP) battery pack for use with an external inverter. Between 1 and 6 battery modules can be used in a single stack to give 4.0 to 24.0 kWh usable capacity. Alternatively, up to 16 Battery-Box LVS stacks consisting of between 1 and 4 battery modules can be connected in parallel to give a maximum capacity of 256 kWh. Additional LVS modules or parallel stacks can be added at any time to increase capacity.
OPTIONAL EXTRA
Find Out More
Rolec AutoCharge – EV Charging Pedestal
The AUTOCHARGE is a robust and hard-wearing EV charging pedestal. Its heavy-duty and vandal-resistant features, make it the ideal solution for exposed locations such as workplaces and public car parks.
This future-proof OCPP compliant pedestal can offer a simple plug & charge or pay-to-charge solution via the EV driver’s smartphone and/or RFID card/fob through any chosen OCPP back-office management system.
OPTIONAL EXTRA
Find Out More
End Of Proposal Version 1.0
Our Promise To You...
Reducing carbon emissions, preventing further environmental harm and saving you money. All this while offering customer service we are proud of. We are here for your sales enquiries and for post-sales support.
We aim to provide a friendly, professional and fast service. We only use and sell items that have passed our own rigid quality control to ensure we can offer the most reliable products at the best prices.
We welcome all enquiries, please do not hesitate to get in touch.
