Smart Storage
Smart Storage 4 min reading time

What does smart storage yield?

The Netherlands is in the midst of energy transition. More and more we are switching from fossil fuels to sustainably generated energy, such as solar and wind energy. This creates a new challenge: redesigning the energy system.

Today's energy grid is demand-driven. If you push the light switch in the kitchen or turn up the heat, the grid goes to work for you. With the advent of more renewable energy sources, the energy landscape takes on a new dimension: "supply. This is because there are times when we have to deal with sun and wind when we don't need it. At those times, we need to store the renewable energy.

We store all of this

There are several ways to store renewable energy. Want to read in detail about what all you can cleverly store? You can read about it in this article. Of course, the most well-known way is to store sustainably generated energy in a battery. This way you can supply power at peak times and store electricity when we generate more power than the grid can handle.

You can also store hydrogen in a battery. A hydrogen battery can be used in places where hydrogen is produced, for example at a solar park such as Vloeivelden Hollandia. The sustainably generated hydrogen is then stored in a hydrogen battery. The green hydrogen can later be used as fuel for heavy transport and industrial processes.

In addition to electricity and sustainably produced hydrogen, you can also store heat. We do this, for example, at solar thermal park Dorkwerd. We store the heat we produce here daily in a large buffer tank of 6,000 cubic meters. Then the heat goes from the buffer tank to the seasonal storage of Warmtestad's heat plant. In this way we ensure that we can use solar heat all year round, even in winter.

What does smart storage provide?

Very convenient storing this sustainably generated energy. But what does it actually provide? To understand that, we look at the benefits for each storage system.

Storing electricity in a battery
  • A more stable power grid

By storing energy in a battery, you ensure you have enough energy at any time. When a solar farm produces more power than the grid can handle, a battery is a godsend. The energy you store in a battery can be fed back into the grid at a later time when the grid can handle it. A battery provides a more stable electricity grid and contributes locally to a solution for grid congestion.

  • Still expanding your business through a battery

To meet all the requirements for CO2 emissions, more and more companies are going sustainable. They are switching from fossil fuels to renewable energy. To become more sustainable, but also to expand, space is needed on the grid. And that space is not available everywhere. But even in this case, energy storage in the form of a battery is a solution. Especially when you also generate your own energy.

You don't always need the energy you generate yourself right away. A battery allows you to store your own generated energy and use it later. In this way, you provide your company with sufficient green power, without having to expand your connection. In this way, you also become energy independent.

  • Saving costs with a battery

Deploying a battery helps with grid congestion, makes you energy independent as a business, but also has benefits for your wallet. With solar panels and an energy storage system, you supply yourself with energy. This allows you to save on energy purchases. In addition, you save costs because you deliver less energy back to the grid. This is because you store the energy you don't use right away in your battery and use it when you can.

Battery-Bontepolder-two people wearing orange vests

Energy storage system at Bontepolder solar farm.

Storing hydrogen in a battery
  • Green hydrogen, when you need it.

To become more sustainable, more and more companies are using hydrogen as a renewable fuel. To do so, we do need to produce it more and, of course, store it. But where do you get green-produced hydrogen? Green hydrogen is created when you produce hydrogen with green electricity, for example with energy generated by solar panels. However, this hydrogen cannot always be used where it is produced. A concrete example of this is the H2Hollandia hydrogen project. At solar park Vloeivelden Hollandia, solar power is converted into hydrogen using an electrolyser. For this we use the green power that comes from the solar park Vloeivelden Hollandia. The power is not fed into the grid, but is used directly to produce hydrogen. Because the power is used directly and does not go into the grid first, we avoid grid congestion. The green hydrogen is stored in a hydrogen battery. Later, this hydrogen is transported via tubetrailers. These are trucks with high-pressure cylinders that can transport hydrogen. The hydrogen is then used as fuel for transportation, as well as for industrial processes.

There are a number of advantages to the project. First, with the solar farm, we bypass grid congestion because we use the surplus energy generated directly to produce green hydrogen. In addition, the hydrogen used as fuel and in industrial processes is clean hydrogen. When burned, only water is released, so it is not harmful to the environment. If you store green hydrogen, you will always have a sustainable fuel on hand when you need it.

Storing heat in a buffer
  • Solar heat, even in winter

Storing heat is done at solar thermal park Dorkwerd. The park, with some 24,000 solar collectors, produces heat instead of electricity. The heat generated daily on the park is stored in a buffer tank of 6,000 cubic meters. At night, this heat goes through pipes from the solar thermal park to WarmteStad's seasonal storage facility. Here the heat is stored for use in the winter. WarmteStad makes sure the heat gets to homes and businesses. We store the heat from the solar thermal park because we also generate heat at times when it is not immediately needed. After all, the sun shines more in the summer than in the winter. By storing the heat and using it later, we can always use sustainably generated heat, even in winter. This way no heat is lost and we can make more use of renewable heat.

Taking maximum advantage of renewable energy

There are quite a few benefits to smart energy storage. For example, a battery provides greater grid stability, cost savings and offers an opportunity for expansion. In addition, energy storage allows us to make maximum use of sustainable energy at times when we really need it. It is important to take steps now towards a new energy system with storage possibilities, so that by 2050 our energy supply will be completely sustainable and CO2 neutral.

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