Focus area: Demand response

Energy Cloud

Project URL: WWW.ENERGY-COOL.COM

Solution/product description

Our solution, Energy Cloud, utilizes UPS batteries in cell-sites to deliver demand-response services to the power grid. The solution aggregates a high number of individual cell-sites, presenting and controlling them as one “combined site” to the power grid. An integrated part of the solution is testing and monitoring of UPS batteries ensuring a highly reliable UPS operation. The solution uses existing on-site rectifiers.
In addition, site indoor climate and equipment monitoring can be added minimizing the need for on-site maintenance visits and enabling remote optimization of both UPS and climate control. The solution can also be extended with ultra-low energy cooling that can be supplied from UPS and ensure cooling also in events of power outages.
Energy Cloud has been tested in a project together with the Danish TSO, Energinet, and one Danish network operator. The project showed that large groups of cell-sites can be operated as one combined site delivering demand response services to the power grid, and is ready for further scaling.

How does your project address / improve the focus area (Monitoring and Measurement, Demand Response, Supply and Control)?

Our solution enables the vast number of UPS batteries installed in cell-sites to deliver demand response services to the power grid operators. The UPS batteries are an existing potential source for flexible consumption that requires an aggregator solution capable of handling a very high number (+10.000) sites and presenting these as one aggregated and controllable load. Energy Cloud does exactly that and combines this with testing and monitoring of the UPS batteries, ensuring very high reliability from the UPS systems enrolled in the solution.
The aggregated load available for demand response depends on the site consumption and UPS configuration. Typically, in a Danish context a group of 1000 cell-sites can deliver 1 MWh – 3 MWh shifted consumption to the power grid per day.
The additional monitoring and testing of the UPS batteries improves the network operators overview and knowledge of the actual UPS capabilities in the network and the ageing of the batteries without performing site visits. Therefore, the full service life of the batteries can be utilized and replacement of batteries can be planned ahead in combination with other site activities. An option is addition of ultra-low energy cooling that can be power from the UPS. This ensures cooling operation during power outages.

What was your inspiration for your project?

The original inspiration to the solutions comes out of discussions with the Danish TSO, Energinet, and their thoughts on the increased need for flexible consumption with increased penetration of renewable power production – especially wind. The penetration of renewable production is driven by the Danish goals for renewable energy (across all sectors) targeting 50% renewable production in 2035 and 100% in 2050. It is expected that 50% of electricity production is wind powered in 2020.
The technical solution is inspired and target towards the Danish ancillary service markets but can be adapted to other markets because it uses a very general model of flexible consumption. For the team it has also been important to focus on utilizing existing assets that also serves another purpose, and keeping the need for new equipment at an absolute minimum.

What is the single most exciting thing about your project?

Supporting penetration of renewable power production in the grid using already installed assets and at the same time decreasing operations cost for the network operators.

Why did you decide to take part in the Adaptive Power Challenge?

Energy Cool is looking to bring its solutions for cell-sites from the European market to the US market. We see the Adaptive Power Challenge to be a perfect opportunity to one step in this journey because it addresses many of the challenges that have motivated our product development. The opportunity to test our solution in a US setting together with a US customer is very interesting for us.