THE ENERGYHUB SYSTEM FOR Apartment Buildings

How to achieve control over the energy consumption in your property

With the increasingly rapid electrification of society, the issues of power and energy supply have become a major consideration for residents in apartment buildings. More and more people consider it self-evident that the property should be energy-optimised in order to manage and contribute to the transition to sustainable and local energy production, and to the charging of electric vehicles. Costs of connecting to the grid, of subscriptions and of the electricity consumed have risen sharply in recent years, and there is every reason to assume that they will continue to do so. As a property owner, taking control of your own grid connection can therefore bring major benefits for both the environment and your wallet.

We know that there are a lot of questions at the beginning

Those who build, manage or live in apartment buildings have lots of questions. Is it possible to use the property’s existing capacity to avoid expensive grid charges and price rises? As more and more people charge their electric vehicles at home, will other things in the property such as the laundry room and lifts continue to function as usual? If we already have solar cells and electric vehicle charging, can we integrate everything into a smarter system? How do we know that what we invest in today can be expanded and still work in the future? Can an investment in the right technology even be turned into an economic advantage? One question being raised lately is how to best manage power peaks using your own battery storage.

Lower energy and operating costs mean a higher property value.

Ferroamp’s energy technology reduces energy losses for those who have solar cells and electric vehicles. By phase balancing and offering DC grids in properties, the losses can be reduced by about 30%. Resulting in lower energy and operating costs and a higher property value. The apartment building is made future-proof with ONE system for energy storage, solar cells and electric vehicle charging.

The EnergyHub system satisfies the increased need for power and electricity.

Many have already installed solar cells and/or electric vehicle charging, and are now ready to take the next step. Ferroamp’s system enables you to maximise the benefits of the solar cell installation by limiting the need to purchase electricity and by reducing power consumption. An investment in Ferroamp’s technology that achieves phase balancing and controls power consumption creates conditions for the increased expansion of, among other things, electric vehicle charging.

In Ferroamp’s system, one central node, EnergyHub, links up solar cells, electric vehicle charging and energy storage with the other electricity consumers in the property. This is done primarily with direct current (DC) which, in contrast to alternating current (AC), means that energy is transmitted more efficiently and with very small losses.
EnergyHub automatically makes sure that some of the energy produced is stored in the battery, so that it can be supplied in the evening when all the neighbours have come home. The energy produced in-house is used during the time when the apartments use the most electricity, thus reducing both the association’s grid charge and energy consumption. By controlling when the produced energy is used, it becomes more valuable, while at the same time reducing the load on the national grid. Being power-smart is sustainable!

Energy storage offers more secure supply and big savings

A battery storage system can be connected to the grid connection and topped up at times when electricity is cheaper. It can also be connected to the solar electricity and help to manage consumption peaks at times when solar production is lower. There are already applications available now that give property owners the opportunity to apply frequency regulation, and demand for and interest in this is growing rapidly. The depreciation period for an investment in a solar cell and battery system has now fallen from 20 years to 6-8 years.

The energy generated when the sun shines can be used immediately for operations in the property or for charging electric vehicles. It can also be stored in batteries for use at times when the price is higher and when there may be a lack of capacity in the grid. If the electricity is bought from the grid when it is cheaper (at night) and stored in your own batteries, you simply save money. Batteries are enormously significant in managing this, and it is extremely important when several vehicles are being charged during consumption peaks.

Considering installing charging boxes?

Many questions often arise when it comes to charging solutions for tenant-owner associations, but this is by no means as tricky as you might imagine. It is important, however, to understand the difference between load balancing and phase balancing, and the difference between dividing current between charging points in the garage and balancing between phases and in the whole property. Ferroamp’s systems, which are based on patented technology, are superior in terms of phase distribution. Phase distribution is used to avoid consumption peaks, to handle the main fuse and to be able to expand capacity for increased electrification with solutions that reduce energy costs, mostly for subscriptions for electricity consumed. 

EnergyCloud gives you control over the energy in your property

With EnergyCloud, energy consumption is more transparent and there are fewer surprises. Not only does it enable you to find out how much energy is being used, but exactly how it is being used. EnergyCloud makes it possible to analyse and visualise production and consumption, providing solid base data for decisions about changes and power optimisation.

Energy communities – Sharing is Caring

By linking several EnergyHub systems, multiple buildings can cost-efficiently share energy and power resources in a local DC grid.
By taking full advantage of the roofs that receive most sunlight, solar energy can be shared with other buildings with less favourable conditions. The solar energy can be used collectively by all buildings in a tenant-owner association.

For tenant-owner associations, for example, legislation today is such that each building must have its own grid subscription. So, if you have three buildings in a tenant-owner association, you have three grid subscriptions. If the tenant-owner association wants to invest in solar cells and all three roofs are not suitable for solar cells, it can be a tricky situation, as the solar electricity does not benefit the whole association, only those living in the building where the solar cells are located. With Ferroamp’s technology, a local DC network, solar energy can be easily distributed between the buildings. Solar energy can be used collectively by everyone in the association. There are major financial benefits here, providing more tenant-owner associations with the opportunity to invest in solar cells.

Why does the EnergyHub system use direct current?


The reasoning behind the choice of direct current for this technology is that it provides controllability at end points. In an AC grid, it is not possible to direct the solar energy produced to buildings A, B or C. The solar energy will instead flow where the voltage is lowest, which might not be where there is consumption. The DC grid provides the opportunity for controllability and control over where the energy goes.

Costs to be saved

Ferroamp’s energy technology provides lower energy and operating costs. Furthermore, the costs are predictable, giving you both full control and increasing the value of your property.

Summary of the EnergyHub system

Taking control of your own grid connection can bring major benefits for both the environment and your wallet. Here we summarise all the benefits of the EnergyHub system.