SiteGrid X45 BESS

Hybrid Battery Generator System

SiteGrid X45 is a hybrid power system that offers a convenient and efficient way to deliver power to any site environment without a grid connection, using generator power and renewables to store power in a battery bank. This significantly reduces emissions, the size of the generator required and fuel costs. Moreover, SiteGrid X45 has an optional Energy Management System (EMS) that allows all separate loads to be fed independently and programmed with their unique schedules for intelligent power management.

Reduced C02

Reduced

C02 Emissions

Reduced Fuel Costs

Reduced

Fuel Costs

Reduced Noise Pollution

Reduced

Noise Pollution

Built in Britain logo

Features & Benefits

  • Turns standard diesel generator hire into a hybrid generator system
  • Reduced environmental impact
  • Reduced generator runtime
  • Remote energy management as standard
  • Live energy reporting as standard
  • Individual socket control as standard
  • 3-phase configurations
  • Can be synchronised with generator sets from 20kVA - 60kVA
  • Can be linked with additional sets (up to 10) to provide higher power output
  • Renewables ready

Product Specifications

Length 1.86 m
Width 1m
Height 1.63 m
Weight 1185 kg
Peak Power 90 kVA
Phase Configuration 3PH
Inverter Power 45 kVA
Battery Type Lithium LFP
Battery Capacity 43.2 kWh
Battery Depth of Discharge 95%
Standard Outlets 1x 125A 3PH 9x 32A 1PH
Input 1x 125A 3PH
Transfer Switch 3x 100A
Fan Assisted Cooling -20 to +50°C

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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.

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Our Range of Battery Energy Storage Systems

Environmentally considerate, cost-reducing, hybrid generators and portable power for hire and sale.

SiteGrid X3 BESS
  • Lightweight and portable (only 25 kg) 
  • Fast set-up (1 minute)
  • Carry case with wheels
  • Backpack version available
  • Can be charged from grid, solar or DC input 
  • Multiple protection devices
  • Zero noise and emissions
  • Intelligent BMS management
  • LED Display
  • Recharge time only 5 hours
SiteGrid X100 Industrial BESS
  • 102kWh energy capacity – delivers high-output power for demanding operations and heavy-duty site equipment 
  • Charge and discharge in under an hour – ideal for peak load support and fast deployment
  • Renewable and hybrid-ready – works in tandem with generators, solar, or wind
  • Reduces CO₂ and NOx emissions – stay compliant with low-emission zone regulations
  • Plug & Play setup – fully mobile and easy to install
  • Peak shaving, Load sharing - reduce strain on generators and energy. 
  • Remote monitoring and control – powered by Think Energy Panorama for 24/7 access to data and diagnostics
  • Hire or purchase available – flexible options for short-term or permanent setups
SiteGrid X200 Industrial BESS
  • 200 kVA power, 250 kVA peak power – delivers high-output power for demanding operations and heavy-duty site equipment 
  • Fast charge and discharge  – ideal for peak load support and fast deployment
  • Renewable and hybrid-ready – works in tandem with generators, solar, or wind
  • Reduces CO₂ and NOx emissions – stay compliant with low-emission zone regulations
  • Plug & Play setup – fully mobile and easy to install
  • Peak shaving, Load sharing - reduce strain on generators and optimise energy. 
  • Remote monitoring and control – powered by Think Energy Panorama for 24/7 access to data and diagnostics
  • Hire or purchase available – flexible options for short-term or permanent setups
SiteGrid X200+ Industrial BESS
  • 200 kVA power, 235 kVA overload power, 564 kVA peak power – delivers high-output power for demanding operations and heavy-duty site equipment
  • Fast charge and discharge – ideal for peak load support and fast deployment
  • Renewable and hybrid-ready – works in tandem with generators, solar, or wind
  • Reduces CO₂ and NOx emissions – stay compliant with low-emission zone regulations
  • Plug & Play setup – fully mobile and easy to install
  • Peak shaving, Load sharing - reduce strain on generators energy optimisation.
  • Remote monitoring and control – powered by Think Energy Panorama for 24/7 access to data and diagnostics
  • Hire or purchase available – flexible options for short-term or permanent setups
SiteGrid X350 Industrial BESS
  • 376 kWh energy capacity – delivers high-output power for demanding operations and heavy-duty site equipment 
  • Fast charge and discharge  – ideal for peak load support and fast deployment
  • Renewable and hybrid-ready – works in tandem with generators, solar, or wind
  • Reduces CO₂ and NOx emissions – stay compliant with low-emission zone regulations
  • Plug & Play setup – fully mobile and easy to install
  • Peak shaving, Load sharing - reduce strain on generators and optimise energy. 
  • Remote monitoring and control – powered by Think Energy Panorama for 24/7 access to data and diagnostics
  • Hire or purchase available – flexible options for short-term or permanent setups
SiteGrid X500 Industrial BESS
  • 564 kWh energy capacity – delivers high-output power for demanding operations and heavy-duty site equipment 
  • Fast charge and discharge  – ideal for peak load support and fast deployment
  • Renewable and hybrid-ready – works in tandem with generators, solar, or wind
  • Reduces CO₂ and NOx emissions – stay compliant with low-emission zone regulations
  • Plug & Play setup – fully mobile and easy to install
  • Peak shaving, Load sharing - reduce strain on generators and optimise energy. 
  • Remote monitoring and control – powered by Think Energy Panorama for 24/7 access to data and diagnostics
  • Hire or purchase available – flexible options for short-term or permanent setups
Battery Power Solutions for Tower Cranes
  • Massive cost savings — Eliminate or drastically cut diesel fuel costs
  • Up to 90% emissions reduction — Supports net-zero goals and BREEAM compliance
  • Silent operation — No noise complaints, meet strict urban restrictions
  • Compact footprint — Modular, relocatable units free up valuable site space
  • 24/7 remote monitoring — AI-driven Panorama system included with all units
  • Fast deployment — Professional installation typically complete in under a day

Related Products

Generators
  • Super silent diesel generators for low-noise applications
  • LPG-powered option set delivering cost-effective and cleaner power
  • Mobile, site and road-towable generators
  • Hybrid – battery/generator packages for low load requirements
  • UPS solutions
  • Containerised generators
  • Biodiesel, Glycerine, HVO, Hydrogen fuel options
  • Remote monitoring and reporting as standard
  • Load-on-demand set-ups, ensuring cost-efficiency for variable power demands
Solar Skyframe
  • Additional power source for hybrid generator Solartainer Versatile range
  • High peak power output: 3 kW- 5 kW per Solar Skyframe
  • Quick and easy installation (twist locks, can be mounted directly onto cabin roofs)
  • Hydraulic panel control at ground level, no need to work at heights
  • Adjustable solar panel angle to harvest maximum energy
  • Option to link multiple sets of Solar Skyframes together
Plugs & Leads
  • Single and 3-phase options
  • Fitted plug and socket
  • 6A - 1000A
  • 10m, 15m and 25m as standard
  • 110V and 230V
  • Temperature range -30 to 70 degrees
Think Energy Panorama
  • Remote monitoring of assets on site
  • GPS Location of asset
  • Full remote control of generator – Alarm reading, Alarm reset, Stop/Start, Engine speed, Output Frequency
  • Service hours logging and will generate service list
  • Full remote control of inverters – the ability to automatically reset inverter trip-outs.
  • Automatic performance reporting using minute-by-minute site loads. 
  • Machine learning to identify upcoming issues with the fleet
Solartainer Versatile
  • Autonomous off-grid power supply
  • Adaptive power source
  • Lithium-ion battery storage with generator backup, including glycerine-fuelled
  • Reduced CO2, NOx, SO2 & PM emissions
  • Reduced generator runtime and service costs
  • Available in single or three-phase configuration
  • Remote energy management and live energy
  • Option to synchronise to multiple sets

Frequently Asked Questions

The SiteGrid X45 saves money by significantly reducing generator runtime and facilitating can be enabled to store and distribute renewable energy, from solar, wind and hydro. The SiteGrid X45 stores and distributes energy using smart energy management and optimisation software and hardware so that you can run your project at peak efficiency from battery and inverters with minimum generator or grid runtime. Reducing costs and avoiding carbon emissions and noise.

The SiteGrid X45 is ideal for any off-grid energy requirement that requires rapid deployment of power by turning diesel generators or grid in to a hybrid energy solution. These units cab be synchronised with generators from 20kVA to 60kVA in three phase configurations and linked with additional sets, up to 10, to provide higher power output.

The capacity of the SiteGrid X45 BESS is 45kWh. It delivers 45kVA of inverter power with a peak power of 90kVA. Multiple units can be connected to scale your power, or you can choose Think Hire industrial BESS range including the X500 with a capacity of up to 564kWh and peak power of 625kVA.

The SiteGrid X45 has been designed to optimise the capability of it's inverter system, store energy through rapid charging batteries that collectively and significantly reduce generator runtime. The X45 has been proven to be the optimum configuration of inverter, battery and smart socket control to deliver efficient energy upto 90kW in it's class.

Yes. The SiteGrid X45 is skid mounted and fully portable. It has forklift pockets at the base and strong, secure lifting eyes on the top. At just 1,185kg, its weight is well within the capacity of most on-site forklifts and cranes. The dimension are L: 1.86m, W: 1.0m and H: 1.36m.

The best option depends on how often you need portable, temporary power, and whether you have suitable, secure storage for the unit when not in use. Regular users will get better value from outright ownership, while occasional users will benefit from the flexibility of hiring.

The SiteGrid X45 has remote energy management and live energy reporting as standard via our pioneering Panorama software. This allows you to manage, monitor and report demands and energy efficiency while on or off site. The onboard EMS allows individual loads to be managed independently using intelligent power management.

Yes. One of the major benefits of using a BESS, such as the SiteGrid X45, is that it turns direct diesel generation into a hybrid power system which can include renewable energy inputs from wind, hydro or solar panels, while maintaining a dependable power supply on site.

Yes. By cutting the runtime of diesel generators, and facilitating the use of clean renewable energy, the SiteGrid X45 will significantly reduce emissions of CO2 and Nox, as well as particulate matter and noise pollution.

Yes. Smart energy management system, Panorama is embedded in the SiteGrid X45 BESS. This allows you to manage, monitor and report on energy use, efficiency, environmental impact and cost savings.

Most sites report savings of 80% or more on diesel generator fuel. The SiteGrid X45 also generates many other savings such as reduced fuelling and maintenance time for diesel generators, extended equipment life and far fewer costly interruptions.

Think Hire are the relocatable, renewable energy experts, with over 30years experience in supplying cost-effective, environmentally friendly power for off grid sites and infrastructure sectors. We are the pioneers and market leaders of relocatable renewable energy systems. We operate the widest and largest range of portable BESS systems in the UK and we are underpinned by industry leading software, giving our clients confidence in our operational performance and data integrity.

Who We Work With

What Our
Clients Say About
Think Hire

★ ★ ★ ★ ★

"The hybrid system has exceeded expectations. Since installation, our site has run on batteries and solar PV for 86% of the time, cutting fuel use by nearly 8,300 litres and avoiding around 22 tonnes of greenhouse gas emissions.

The system was quick to set up, fully autonomous, and has made a noticeable difference to local noise and air quality. The current trial has demonstrated very strong results, significant environmental benefits, reduced GHG emissions, cost reductions, and silent power overnight. The hybrid generator system has proved its value in adopting this technology when running off-grid."

James Bisco
Head of Sustainability at Ashe Group

★ ★ ★ ★ ★

"We wanted Innovation Day to reflect our ambition for the construction industry, to be forward-thinking and environmentally responsible. Working with Think Hire showed that it’s completely possible to run a complex event on clean energy alone."

Gavin Pick
Sustainability and Innovation Manager at George Leslie

★ ★ ★ ★ ★

“Our project managers were joking that since using Think Hire we are now on Harrods level! It’s because it’s such a huge difference to what we experienced in the past”

Procurement Manager (D&E Solutions)
Equans

★ ★ ★ ★ ★

“Think Hire's engineers are very proactive – AJ, for instance, won't leave until everything's done and ensures there are no upcoming issues. Everything I've asked Think Hire to do has been done and more”

Site Agent
Green Frog Connect

★ ★ ★ ★ ★

“I'm impressed with Think Hire's approach, their products, and their commitment to investment in innovation… Think Hire has proven to be an excellent organisation to support”

Operations Manager
Story Contracting

★ ★ ★ ★ ★

“The Think Hire products are branded really well and look great, which is really important in our industry. People don't understand: if you've got a job that's 60 or 80 weeks long, that's a year and a half of your life spent in those facilities. The product works great. They've got the specs sorted. They've got it down to a T”

 

Project Manager
Glencar

★ ★ ★ ★ ★

“We work with several suppliers, but currently we use Think Hire in almost all cases. I use Think Hire because they handle everything on-site and set it all up, which means I don't need to worry about anything. With our previous supplier, we had to either do the plumbing ourselves or hire someone separately to do it. With Think Hire, if there's a problem, since they've done everything, they take responsibility and resolve it”

Plant and Transport Coordinator
Carnell

★ ★ ★ ★ ★

“Think Hire’s products look good, they look neat, and they don't take up massive amounts of space”

Framework Director
Bethell

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