Sinewave

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Sinewave Sinewave Energy Solutions have proven expertise in high and low voltage power systems along with renewable energy systems providing a nationwide service.

Sinewave are a specialist engineering company who provide High and Low voltage electrical services across the UK. Sinewave provide turnkey solutions for any electrical problem up to 132kV. Sinewave employ highly skilled engineers with sound technical understanding of electrical engineering, so we can ensure any electrical network is running safely and at its best. Sinewave provide bespoke solutions in a variety of fields including; all aspects of civil groundworks, jointing, fitting and installations of electrical plant and equipment, including switchgear and transformers, low voltage apparatus, installations of electric vehicle (EV) charging stations as well as being an Independent Connection Provider (ICP) accredited by Lloyds through the National Electricity Registration Scheme (NERS) . Our highly skilled protection and commissioning engineers are available for solutions to any network protection issues, grading studies and for commissioning of any high and low voltage equipment. A 24hr a day emergency call-out and fault location service is available 365 days of the year. We also offer our customers, electrical system operation and safety training courses.

Low ceiling, heavy lift ✈️Sometimes the best thing you can do for an ageing transformer is retire it.We’ve just replaced...
15/10/2026

Low ceiling, heavy lift ✈️

Sometimes the best thing you can do for an ageing transformer is retire it.

We’ve just replaced a client’s transformer on a site right next to an airport. The proximity meant strict limits on lifting height, so a crane was off the table. Instead, the new unit, all 5,930 kg of it, went in on skates, guided by a forklift and spreader beam.

Our team carried out the replacement and energised the new transformer quickly and safely, keeping our client’s downtime to a minimum.

Regular asset maintenance (oil tests, inspections, keeping on top of wear) is still the right way to look after a transformer. But there comes a point where replacing it is the more sustainable, economical and practical choice.

Ultra-rapid charging meets 1950s diner nostalgia 🥤⚡Fastned’s newest UK hub is officially open at OK Diner Cromwell on th...
13/10/2026

Ultra-rapid charging meets 1950s diner nostalgia 🥤⚡

Fastned’s newest UK hub is officially open at OK Diner Cromwell on the A1 northbound, with 12 ultra-rapid charging bays at up to 400kW each.

The launch went full 1950s, with live music, a classic Porsche 911 converted to electric and a signature Fastned milkshake.

Behind the scenes, we delivered the electrical infrastructure from the point of connection to the feeder pillars on site, working alongside Toureen and the DNO. Two substations, the HV cable to feed them, 110m of earthing and two LV feeder pillars, all installed, tested and energised for drivers.

Our Project Manager Natalie reflected on the project delivery:

“It has been a pleasure to be part of the delivery team for this project, working closely alongside both the DNO and Civils teams. As with any project, there were challenges along the way, but through collaboration, commitment, and a shared focus on success, we have delivered a high-quality end product that everyone involved can be proud of.”

A huge well done to everyone involved in getting this site over the line. Great work by Fastned, Toureen, our in-house engineering team 🛠️

08/10/2026

Creating a safe space to talk isn't a one-off campaign for us. It's an everyday commitment.

In our sector, looking out for your team goes far beyond wearing the right PPE on site. Mental health deserves the same attention as physical safety.

Across Sinewave:

🔵 13% of our workforce are trained Mental Health First Aiders, ensuring there is always a trusted, accessible point of contact on site or in the office.

🔵 Our team-led breakfast club gives colleagues a dedicated, pressure-free space to catch up and talk before the working day starts.

🔵 Our Sinewave Communities bring people together over shared interests, making it easy for colleagues across different teams to chat, organise social events, and find others who love the same hobbies.

🔵 We actively support The Kelly Foundation and The Lighthouse Charity, backing local and industry-wide initiatives that deliver vital emotional, mental health, and welfare support.

World Mental Health Day is a great reminder to check in on a colleague, mate, or family member.

Take a moment today to check in on someone. A simple conversation can make all the difference 💙

You can't manage the condition of an asset if you can't see what's happening on the inside 🔍Visual site checks only show...
06/10/2026

You can't manage the condition of an asset if you can't see what's happening on the inside 🔍

Visual site checks only show you half the story. To truly protect high-voltage assets, our O&M team carries out intrusive maintenance, taking equipment offline to safely open up switchgear, transformers, and circuit breakers for deep physical and electrical inspection.

Inspecting internal contacts, testing insulation integrity, and checking mechanical operation allows our engineers to identify hidden wear or degradation before it triggers a costly unplanned outage.

Just as important as the physical work is what happens afterwards. Following every inspection, our team delivers comprehensive, detailed reports packed with high-resolution photos, test readings, and clear engineering findings. This gives asset managers a complete, up-to-date historical record of their infrastructure while highlighting any early warnings before they become major operational issues.

Where an issue is identified, our priority is always targeted repair, replacing specific worn components to restore full reliability without unnecessary expense. We already know your site, so if full asset replacement is required as a last resort, having our team handle both maintenance and major repairs ensures complete continuity and efficiency. 🛠️️

September was non-stop 🏃‍➡️ We've been hard at work across every part of the business, delivering energisations, major a...
01/10/2026

September was non-stop 🏃‍➡️

We've been hard at work across every part of the business, delivering energisations, major asset replacements, site inspections, and new high-voltage connections. We've also announced some of our largest project appointments to date, and the momentum across our sites isn't slowing down.

A huge thank you to our team, contract partners, and wider support network who help keep our operations running smoothly every day.

There’s far too much to fit into a single update, so here’s a quick glimpse of what we've been up to this month 👇

29/09/2026

What a week at Solar & Storage Live 2026.

It was a brilliant few days at the NEC. Having our biggest stand to date gave us the room to catch up with partners, developers and suppliers from across the sector.

A huge thank you to everyone who stopped by our stand. We hope meeting our team members from across the business on the expo floor meant getting expert advice at every level, whether discussing high-voltage connections, BESS project feasibility, or O&M strategies.

If we missed you in the halls or didn't get to finish a conversation, send us a message or get in touch through our website:

https://zurl.co/USit6

See you next year! ⚡

Day 1 at Solar and Storage is flying...Head over to stand H35 to talk to the team that are directly involved in deliveri...
22/09/2026

Day 1 at Solar and Storage is flying...

Head over to stand H35 to talk to the team that are directly involved in delivering our projects.

And yes... the the fridge is stocked and opens at 4pm 👀

16/09/2026

Delivering on the details 🔍

Design Engineer Elli took over our camera for the day to give you a genuine look into her role, from initial design work through to navigating complex site challenges.

As Elli explains, the real advantage comes down to our in-house structure. Having our design and engineering teams under the same roof allows us to act decisively when projects need quick adjustments.

It gives us the flexibility to meet exact customer specifications while providing expert advice on critical layout and power optimisations before construction begins.

Watch the full video below to catch a glimpse of a day in the life of our design team 🎬

Project Announcement: New 132kV Data Centre Grid ConnectionWe've been appointed as principal contractor to deliver the e...
09/09/2026

Project Announcement: New 132kV Data Centre Grid Connection

We've been appointed as principal contractor to deliver the end-to-end 132kV infrastructure connection for a major new data centre in the capital.

Laying 1km of high-voltage route through central London means overcoming tight physical constraints. In combination with trenching across complex obstacles, the project requires two separate horizontal directional drills (HDDs): one beneath a canal and another at a major road crossing.

Behind the scenes, the engineering complexity is just as high. Delivering maximum uptime for a data centre demands a fully redundant supply, meaning two primary circuits, dual transformers, and twin sets of foundations. From complex grid studies and long-lead plant procurement through to managing canal consents and street works permits, our in-house teams are managing every stage of the build right through to final energisation. ⚡

Work continues right on our doorstep at Panattoni Park Swindon.Powering an industrial estate spanning 7 million sq ft an...
01/09/2026

Work continues right on our doorstep at Panattoni Park Swindon.

Powering an industrial estate spanning 7 million sq ft and 26,000m of HV cable is a massive undertaking. With phase one complete, our team is now well into phase two of this site build, installing the next round of Ring Main Units (RMUs) to support the park's expansion.

The momentum on-site isn't slowing down. With the Ministry of Defence already letting out one of the major units, the development is already proving its strategic value. Our engineers are managing the complete infrastructure package on the ground: handling physical installation, cable pulling, complex terminations, and final commissioning.

It’s brilliant to see this level of industrial investment happening so close to our Swindon HQ, and we're looking forward to keeping the power moving as new units come online ⚡

Address

Kembrey Street
Swindon
SN28UY

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