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Brucefields Children’s Home

Client: Connected Kerb / Brucefields Children’s Home
Project length: 3 days
Completion date: April 2023
HF divisions involved: ElectricalGreen Energy

Brief project description: The HF Green Energy team were in Stirling this month installing and commissioning a new 1 Nr Dual 7Kw ‘Gecko’ EV Charging point at Brucefields Childrens Home, Stirling. To install the new EV Charging System, our team had to lay the groundwork for the installation to be completed.  This involved carrying out a machine dig across soft ground from the main building at Brucefield Children’s Home to the proposed location that the EV Chargers would be installed.  Once the dig work had been completed, we could install ductwork (one for power and one data duct), install a ‘soak away’ 1.5 m away from the node box and encase the node box in concrete with the Power pack inside.

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Project Challenges: When it comes to EV Charging Installation, if the site of the EV charger is away from any existing (suitable) electrical supply, there is always challenges with the electrical installation. Due to the age of the existing distribution board, the MCB’s & RCD’S/RCBO’s are no longer manufactured for this type and therefore could not be sourced. To work around this challenging problem, our electrical team had to brainstorm a solution that involved fitting a new distribution board into an already congested area.

As this was an external installation and the installation was taking place in April, we had to deal with heavy rain during the civil works before the weather cleared during the EV charger fitting and we were able to commission the new system successfully on the third day.

Find out more

There is a growing wave of support for electric vehicles in both the commercial and consumer sectors that is currently exceeding the electric vehicle charging network. There is a great demand for charging stations across the country that needs to be met and as more and more people move to electric vehicles, there has never been a better time to have electric vehicle charging stations fitted.

At HF, we are a group of world-class companies leading the way in next-generation technologies; and all with a family continuity at management level which is rarely seen. We can provide a complete electric vehicle charging service – from advising on the best charging station units for your installation to providing year round maintenance contracts to ensure your system is always running at full power. If you would like to know more about Electric Vehicle Charging System Fitting and Maintenance for your business, retail car park or other parking facility, please get in touch.

a company well connected

Lenlothian Storage

Albert Bartlett

Client: Albert Bartlett
Project length: 2 weeks
Project value: £50K
Completion date: September 2022
HF divisions involved: Electrical, Green Energy

Brief project description: Our Green Energy Electricians were contracted to carry out the fitting of two new 200 amp supplies for Albert Bartlett so that they could in turn supply eight Twin 32 amp pedestals that were needed to charge their new fleet refrigerated trailers.

The refrigerated trailers electricity was previously being supplied by a diesel generator and the client was making the switch in order to reduce operating and running costs while lowering their carbon footprint.

Project Challenges: When installing the electrical pedestals, the best practice is to provide the pedestals with a TT earth. This involves insulating the equipment from the distributors earthing system, and creating our own.

Previously, this would have been done by means of earthing rods and a copper electrode which is driven into the ground.

Each rod is approximately 1m long, and to provide an acceptable reading it can mean that multiple rods need to be driven into the ground in order to reach a safe resistance. A stable reading is deemed as anything below 200Ω. For comparison, common readings from the distributor’s earthing system are much lower, <0.3Ω.

For safety, we wanted to get the reading down to as low a reading as possible but also not have to worry about what we may hit when driving rods into the ground.

A new innovation in electrical grounding that is now on the market is something called Condudisc, produced by Earthing Services. This new system is currently the forefront of earthing without the need for fitting rods.

The system requires a small hole (400mm (l) x 400mm (w) x 500mm (d) in which we place the Condudisc with an earth cable then going to the electrical equipment. When tested, we were able to get the readings down to just 8Ω!

We further enhanced the system by installing an additional two Condudiscs for each bank of 4 pedestals and encased the discs in the manufacturer approved Conducrete, another innovation by Earthing Services which improves the reliability of the discs.

As with any new technology, the use of the ConduDisc was a big step to take but has proved to be the best option as we have provided our client with a safe electrical installation with a stable and reliable TT earth. All with reduced installation costs due to this innovative new grounding method.

Earthing using this method is not limited to this type of electrical installation.  It can be used in other applications by HF such as our EV Charger installation work. EV chargers installations can sometimes require the need for a TT earth. Our telecommunications division HF Comms will also benefit from the use of this new grounding method as many of their installations are in remote locations across the UK and their installation TT earth specifications require the reading to be as low as 10 Ω.

Find out more

At HF Group, we are a group of world-class companies leading the way in next-generation technologies; and all with a family continuity at management level which is rarely seen.

If you would like to know more about Electric Installation work for Commercial Vehicle Charging and EV Charging Systems for your business, retail car park or other parking facility, please get in touch.

a company well connected

Connected Kerb EV Charger

Client: Connected Kerb
Project length: 2 days
Project value: £2K
Completion date: October 2022
HF divisions involved: Electrical, Green Energy

Brief project description: Our Green Energy team were called out to Callander, near Stirling to replace a faulty wall mounted EV charger with a brand new Connected Kerbs dual Gecko charger system. As more and more drivers switch to Electric Vehicles, ensuring that the UK charging network is not just expanding but being well maintained is of vital importance.  Connected Kerbs ‘Gecko’ EV charging system is designed to fit into the existing architecture of the streets of towns and cities like Callander with minimal visual impact while delivering vital charging points for the ever expanding number of electric vehicles on our roads.

Project Challenges: Going from a wall mounted EV charging system to a ground mounted charging system is more than just simply unscrewing one device and installing another. Civils contractors were required to provide ducting for the new ground mounted unit and for the installation of the Mounting Box that the new dual mount chargers would be fitted to.

When the work began to install the ducting and mounting box, a previous concrete pad for an older building that may have been in the position was discovered. This impeded the ability to get an earth rod or ConduDisc in place to provide a TT earth.

Our specialist Green Energy Electricians managed to find a suitable ‘work around’ solution to this by install a Matt:E auto-reset PME device. This device, when it detects a supply fault, will immediately cut off the supply to the EV charger. When it detects the fault has cleared, it automatically resets.

Find out more

There is a growing wave of support for electric vehicles in both the commercial and consumer sectors that is currently exceeding the electric vehicle charging network. There is a great demand for charging stations across the country that needs to be met. And with various eco and Government grants available, there has never been a better time to have electric vehicle charging stations fitted.

At HF Group, we are a group of world-class companies leading the way in next-generation technologies; and all with a family continuity at management level which is rarely seen. We can provide a complete electric vehicle charging service. From advising on the best charging station units for your installation to providing year round maintenance contracts to ensure your system is always running at full power. If you would like to know more about Electric Vehicle Charging System Fitting and Maintenance for your business, retail car park or other parking facility, please get in touch.

a company well connected

Two Neighbours EV Charging Installation

Client: Domestic Customer (Neighbours)
Project length: 1 Day
Completion date: March 2022
HF divisions involved: Electrical, Green Energy

Brief project description: We were contacted by a resident living at  No. 15 who was initially enquiring about having an EV charger installed at his home. He advised us that other installers had been willing to quote but nobody had come to survey his property as the electrical installation was what can only be described as’ bit difficult’. This was because the property garage (where the EV Charger was to be installed) was located at the other end of the garden, far away from the house.

We surveyed the site and provided the customer with our quotation and breakdown of what work was required. While we were conducting our site survey, the resident at No. 15’s next door neighbour at No. 11, asked if we could also provide a quote to install an EV charger at his home, which was in the exact same situation with the garage being located at the other end of the garden from the house.

Project Challenges: During the EV installation survey, we discovered that both properties were on the dreaded looped electrical supply. It transpired that his supply in fact came from the property at No. 11 house which meant that we could not connect No. 15 or No. 11 chargers to the networks until they were successfully ‘un-looped’.

Scottish Power will not allow the connection of an EV charger with this type of supply. As a result, the customer was needing to have their home un-looped from the next-door neighbour’s electrical supply. Scottish Power were called out to install a brand new supply cable to the property – completely free of charge to the customer.

To make the project even more of a challenge, the deadline for installing chargers to gain the OZEV grant being 31st March, and the DNO stating between 7-15 weeks for a new supply to be installed meant we were up against the clock if both customers were going to be able to receive their grants.

We kept in constant contact with SPEN and through our persistence, we managed to book a date of the 25th March for their supply to be installed. The HF Electrical team completed both installations on the same day and both customers were understandably left very happy as the work was completed before the deadline and they would be in receipt of the OZEV grants before they expired.

What the customer said

“Superb service from your Electrician/EV Installer Graeme Sneddon. Great help dealing with Scottish Power. Not an easy job!!! Cheers”

Find out more

As more and more car manufacturers release new Electric Vehicles with better range and more efficient, faster charging options, there is a growing wave of support from customers looking to make the switch from petrol and diesel powered vehicles. And with more and more of these car owners making the switch to electric vehicles, there is a strong demand for at home charging systems to be fitted.

The different types of EV Charger

EV charging points are not like petrol stations with universal pumps. There are multiple branded manufacturer options available and various styles of EV charging station outlets to choose from. Wall mounted 7kW EV chargers are the most common and are compatible with all current electric vehicles on sale (with exception of some hybrid models) and an average charge time for an electric vehicle will take between 6 to 7 hours (though this is getting better all the time). There are faster, more powerful charging systems and even something called ‘Rapid Chargers’ available. Our qualified EV Charger Installation team can advise you on the best fit for your EV Charging needs.

With senior-level hands-on management from initial planning to final handover, and with the opportunity to tap into a wide range of varied services and associated consultants with a skills base and command of technologies which are second to none. Working with HF Group is more than just another service contractor.

Ohme Home Pro EV Charging Installation

Client: Domestic Customer
Project length: 1/2 Day
Completion date: February 2022
HF divisions involved: Electrical, Green Energy

Brief project description: We were contracted to install a brand new Ohme Home Pro EV charger for a customer in Glasgow. What makes the Ohme Home Pro EV charger so special is that it has full 4G capabilities. This connects the system to its own back office and allows the customer to select which energy tariff they are using when charging their electric vehicle.

The 4G connected charger then inputs the cost per unit of electricity at the time and gives the customer an accurate cost per charge (depending on the battery level of the vehicle at the time of charging, and the target charge level they are trying to achieve). This allows the customer to see when is the best time of the day to charge their vehicle, creating real cost potential to the customer over the course of the year (for example if their tariff was on a lower rate at night time to encourage overnight charging).

Project Challenges: During the initial site survey for the EV Charging Installation, our Engineers spotted that the customers supply to their home was looped. This method of supplying semi-detached and terraced properties in Glasgow was once a popular choice and means that one cable has been taken from the main supply cable in the street to one house. Then another cable ‘loops’ from this supply to the house(s) next door.

Scottish Power will not allow the connection of an EV charger with this type of supply. As a result, the customer was needing to have their home un-looped from the next-door neighbour’s electrical supply. Scottish Power were called out to install a brand new supply cable to the property – completely free of charge to the customer.

Because our engineers picked this up during the initial home survey and highlighted the problem to SP Energy Networks at the point of application, it took all the hassle away from the customer. It is this level of detail and service that we are so proud of when it comes to electrical installations such as EV Charging Point fitting.

When the property was ‘un-looped’, SP Energy Networks informed us that the works were complete and we were able to carry out our full installation of the new Ohme Home Pro EV Charger.

What the customer said

“Highly recommend HF for EV Charger installation. I got several quotes but HF were the only supplier who actually did an in-person site visit. Just as well too as they spotted I was on a looped supply. They then submitted the request to Scottish Power on my behalf to have a direct supply installed to my home and helped me navigate my way through that confusing process. Once that was done the installation of the charger was spot on – an excellent piece of work.”

Find out more

As more and more car manufacturers release new Electric Vehicles with better range and more efficient, faster charging options, there is a growing wave of support from customers looking to make the switch from petrol and diesel powered vehicles. And with more and more of these car owners making the switch to electric vehicles, there is a strong demand for at home charging systems to be fitted.

The different types of EV Charger

EV charging points are not like petrol stations with universal pumps. There are multiple branded manufacturer options available and various styles of EV charging station outlets to choose from. Wall mounted 7kW EV chargers are the most common and are compatible with all current electric vehicles on sale (with exception of some hybrid models) and an average charge time for an electric vehicle will take between 6 to 7 hours (though this is getting better all the time). There are faster, more powerful charging systems and even something called ‘Rapid Chargers’ available. Our qualified EV Charger Installation team can advise you on the best fit for your EV Charging needs.

With senior-level hands-on management from initial planning to final handover, and with the opportunity to tap into a wide range of varied services and associated consultants with a skills base and command of technologies which are second to none. Working with HF Group is more than just another service contractor.

Domestic EV Charging Installation

Client: Domestic Customer
Project length: 1.5 Days
Completion date: January 2022
HF divisions involved: Electrical, Green Energy

ev charging installation for a domestic garage

Brief project description: Our qualified EV Charging Installers were hired to install a new ‘Wallbox Pulsar‘ Tethered EV Charging Point along with additional IP-rated garden sockets for a property in Glasgow. The electrical installation work required the consumer unit in the garage to be upgraded to a more modern unit. We also increased the size of the cable supplying this consumer unit to cope with the increased demand of the EV charger.

Project Challenges: The frontal area of the garage where the EV charging point was to be fitted was quite narrow.  This meant that we could only fit a certain size of EV Charging Point.  Thanks to the advances in EV Charging technology, we were able to fit a new compact charger from specialist manufacturer Wallbox to the restricted space.

Customer Quote: “I am very happy with the work carried out.  Very helpful installer and overall am impressed with the work done.

Find out more

wallbox ev charging point installer

There is a growing wave of support for electric vehicles in both the commercial and consumer sectors that is currently exceeding the electric vehicle charging network. There is a great demand for charging stations across the country that needs to be met.

The different types of EV Charger

EV charging stations are not like petrol stations with universal pumping stations. There are different branded manufacturers and levels of charging station. Wall mounted 7kW EV chargers are the most common are are seen both in business parks and residential driveways. They are compatible with the vast majority of current electric vehicles on sale (we can advise you on the specifics) and an average charge time for an electric vehicle will take between 3 to 4 hours. There are faster, more powerful charging systems and even something called ‘Rapid Chargers’. Our qualified EV Charger Installation team can advise you on the best fit for your business needs.

With senior-level hands-on management from initial planning to final handover, and with the opportunity to tap into a wide range of varied services and associated consultants with a skills base and command of technologies which are second to none. Working with HF Group is more than just another service contractor.