Why Choose Portable Generator Hire Over Mains Connections?
Date: 26/02/26
Even if you have the luxury of time for planning and logistics, arranging to have mains electricity connected to a new construction site can still be challenging, time-consuming and incredibly expensive. This will impact your project’s timescales, flexibility and deliverability, and it could make the difference between a successful, profitable project and an expensive failure.
That’s why more and more site managers and project designers are turning to portable generator hire to provide power on site. In this article, we’ll look at the benefits of portable generator hire and the many advantages of portable generator hire over fixed grid connections.
Rapid Deployment: Beating the Grid Lead Times
Arranging a fixed grid connection involves a number of lengthy steps, working with the distribution network operator (DNO), which can take several months to complete:
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Applying for the grid connection – including assessing your power requirements both now and as the project progresses.
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Getting a quote for your connection – this can take several weeks to obtain and will then require approval by your project accountants
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Site works for installation – depending on scale and complexity, this can also take weeks or even months to complete. Installation can be slowed down by availability, demand and delays at the DNO.
Portable generator hire from Think Hire can be designed, arranged and delivered in as little as 24hours, getting your project up and running so much sooner.
Cost-Efficiency and Infrastructure Fees
The installation of a permanent grid connection represents a large capital expenditure, before your project has even started. There is major infrastructure required, including high-voltage cables and local substations. In addition, the cost of the works to install these assets will be significant, and is often non-negotiable, with the DNO setting the price with no alternatives available.
Portable generator hire does not require the installation of complex infrastructure, and can be installed quickly and easily at a significantly lower cost.
Flexibility and Scalability for Evolving Sites
Permanent grid connections need to be carefully planned to take into account the evolving nature of most construction sites. Creating a connection at a single location can prove inflexible and lead to further expense in extending your grid system later. Permanent grid connections also have to be specified to deal with peak demand, even if this is only required occasionally.
Portable generator hire can be constantly changed as your project evolves, providing flexibility of both location and supply, which can be scaled up or down, and moved around, as required. This avoids waste without reducing performance, delivering power in the most cost-effective way possible.
Reliability and Energy Security
Dependable energy supplies are vital to keep your site working and meet your construction deadlines. Yet in the UK, power outages and blackouts are more common than you may think. Figures show that the UK experienced around 25,000 individual power cuts in 2025 alone, with numbers up by as much as 30% on 2024.
The National Grid is ageing, and it is badly in need of repair and refurbishment. This adds an unacceptable level of uncertainty for UK businesses, such as construction sites, which depend on the grid for their power.
Portable generator hire from Think Hire removes these risks and puts you in complete control of your energy supplies. What’s more, our advanced energy management systems will proactively monitor your generators to correct faults fast and suggest planned preventative maintenance to avoid problems from occurring in the first place.
Sustainability and ESG Goals
Many companies, and their clients, have high standards when it comes to ESG, and this often includes demands for the use of sustainable energy wherever possible. However, it can be difficult to source fully sustainable energy from a mainstream supplier via the grid. Although many power companies are making real efforts to obtain their energy from renewable sources, few can guarantee this to their customers.
Portable generator hire from Think Hire gives you direct access to renewable energy via state of the art hybrid generators, some of which use ultra-low emission fuels such as glycerine. This makes demonstrating your commitment to sustainable energy so much simpler.
Get connected today with Think Hire
For a rapid, low-cost, low-emission energy supply that you can rely on, talk to Think Hire about portable generator hire today. Connect to our expert team, and we’ll connect you to the power you need for your site fast.
Frequently Asked Questions
Yes, especially for typical construction projects of under two years. Portable generator hire saves on infrastructure and installation costs, as well as avoiding standing charges and other network fees.
Yes. Think Hire can design a portable generator system to match your site, your energy demands and your budget, whatever the scale of your project. Unlike a fixed connection, portable generator hire can be scaled up or down as required throughout the project.
No, not necessarily. Traditional diesel generators do produce carbon emissions and other greenhouse gasses which are bad for the environment, but mains electricity generation can also produce these pollutants. However, hybrid generator hire, which utilises solar energy, can significantly reduce emissions, with the use of alternative fuels cutting pollution even further.
Portable generator hire can be designed and installed in as little as 24 hours, while a mains connection can take many months to arrange.
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We have over 60 years combined experience in the design, manufacture, hire and sale of innovative products, with an environmentally considerate power supply.