Relayd is reserving capacity for the first Q4 2026 projects. Availability is confirmed according to the dates and location of each project.

Clean power for every project, wherever it is

Short- and long-term hire of 318 kVA mobile battery systems for projects that need power while waiting for a grid connection. The units run with no direct emissions and no engine noise while in use. We are reserving capacity for the first projects of the quarter and will confirm availability based on the dates and requirements of each project.

Relayd battery container installed on a construction site with a tower crane in the background

318 kVA / 422 kWh

Power and capacity per unit, extendable by connecting several batteries in parallel

Q4 2026

The quarter for which we are reserving capacity for the first projects

24/7

Remote monitoring, maintenance and support included in the service

The grid is congested and connection times keep growing

More than 80% of nodes on the Spanish grid are congested. Nine out of ten industrial access applications are turned down and connection times frequently exceed 24 months.

A Relayd battery provides the power a project needs while the grid connection is completed.

Connection pending

The grid connection is not yet available, or will arrive after the project starts.

Low Emission Zones

Diesel restrictions make it difficult to use generators in certain urban areas.

Night-time works

Generator noise can restrict working hours and cause conflicts with the surrounding area.

Solutions

The same battery is configured in three ways depending on the type of project.

Relayd battery connected next to a tower crane on a construction site

Construction and infrastructure

Temporary power to keep the whole site running.

The installation powers tower cranes, electric plant, lighting, welfare cabins and site offices from a single energy source, with or without a grid connection.

  • Power for heavy plant
  • Charging for electric machinery
  • Night-time work at a low noise level
  • Compatible with Low Emission Zones
Relayd battery beside a logistics warehouse and an outdoor switchboard

Grid connection and temporary power supply

Extend the power available at your connection point.

The battery supplements the connection point when the contracted power is insufficient or the upgrade is still going through approval. It increases available capacity while the new connection is completed.

  • Peak shaving
  • Cover for peak demand
  • Temporary supply
  • Backup during grid outages
Relayd battery positioned behind a festival stage at dusk

Events and festivals

Stages and operational areas powered by batteries.

A single installation can cover the build, the main stage, lighting, catering and camping areas. The system lowers background noise and avoids the direct emissions produced by diesel engines within the areas it serves.

  • Lower background noise
  • No fumes in the public areas served by the installation
  • Real consumption metering
  • Scalable configuration by area

How it works

  1. 01

    You tell us about the project

    We need the estimated power requirement, the expected duration and the site location.

  2. 02

    We size the solution

    We set out how many units match the expected consumption and the indicative saving you can expect compared with a generator.

  3. 03

    We deliver and install

    Transport, positioning and commissioning take place on the reserved date and are included in the service.

  4. 04

    We monitor and collect

    The service includes 24/7 remote control, maintenance and collection at the end of the project. Relayd manages the installation's day-to-day operation.

Industrial capacity in a modular system

Each unit is a standard container with storage modules, inverters and remote control. Recharging is done from the grid, from a solar installation or from an external generator.

Render of the Relayd battery container with its doors open showing the storage modules
Power318 kVA
Capacity422 kWh
ScalabilityUnits can be connected in parallel
RechargingGrid, solar installation or external generator
Emissions in use0 g of direct CO₂ emissions
Noise levelVery low during operation
MonitoringWeb platform with real-time consumption data
TransportStandard container, lorry with crane

We can look at bespoke configurations for projects with specific requirements.

Typical projects

Common configurations by project type, presented anonymously.

Residential site · Madrid · 14 weeks

2 units powering the tower crane, the site office and lighting, replacing a 250 kVA generator.

Estimated reduction in diesel consumption of 90% to 100%, depending on the usage profile.

Logistics warehouse · Zaragoza · 6 months

1 unit peak shaving while the connection upgrade is being processed.

Operations continue while the upgrade goes through approval.

Festival · Spanish east coast · 5 days

3 units covering the main stage and the catering area.

The site runs without generators inside the areas served by the batteries.

These configurations are shown for reference. The figures are indicative estimates and must be validated for each project.

Why Relayd

A team specialising in temporary power

Our work is focused on the hire, long-term rental and operation of mobile battery systems.

Direct management of the service

Relayd coordinates the team, transport, installation and maintenance.

Mainland coverage

We plan delivery to any mainland province according to the reserved date.

Everything included

The service covers transport, installation, monitoring, maintenance and collection.

Hire or long-term rental

Terms can be adapted to short projects or to operational needs lasting several months or years.

Real consumption data

The monitoring platform records the project's consumption and allows costs to be compared on an indicative basis.

How much power does your project need?

Answer ten questions to receive a first estimate of the configuration required and the potential saving compared with running on diesel.