Don't order yet, but you can reserve your Borg!

How does the reservation process work?
Via the button 'Reserve the Borg T4' you express your interest and reserve a Borg for 2024.
After a deposit of € 200 a Borg is reserved for you.

Please note:
In the coming months, our focus is still entirely on the technical optimization of the Borg.
Booking now means we will contact you in Q2 of 2024 for the Borg Inventory.

What is the Borg Inventory Interview?

The Inventory Interview is an online conversation with our technical expert in which we check whether the Borg indeed is suitable for your home. In terms of space in the garden, but also in terms of insulation, type of heating, your installations, etc.

If you want to proceed after the Inventory Interview, you will get a quote for the purchase, placement, and installation.

Your deposit of € 200 will be deducted from the purchase price.
Should we - for whatever reason - not reach a deal, you will receive € 100 in return.

A rough estimate of the costs to place the system is € 3.000 to € 8.000 incl. VAT for a newly built house and € 6.000 to € 11.000 incl. VAT for an existing house. This depends on the accessibility of the location where the buffer tank will be placed. Is drainage needed, must the excavated soil be removed or can it remain in another place in the garden, etc.

In an existing home, modifications are probably also needed to make the house and installations Borg-ready. For example, installing and relocating plumbing and connection points for the connection set. Perhaps you want to insulate your shed or garage to accommodate the low-pressure connection set? If you don't have a heat pump yet, those are also costs you'll want to factor in.

So, costs for these home modifications depend on the baseline situation of your home. The installer who visits you after the Borg Inventory Interview can make a good estimate.

For new construction it is straightforward: you include the Borg in your design.

For thorough renovation and preservation of your existing home, it may be just as easy as for new construction. When your home and its installations are completely overturned, the Borg is easy to fit in.

The purchase price of the Borg T4 is €15,000 including VAT. This does not include the costs for installation and any modifications in your home that are necessary to install the Borg.

For this you get: the buffer in your garden, the two cabinets of the connection set that are placed in your house or your shed, the underground connection between the buffer and the connection set, and the control box that regulates the control from the cloud.

Storing heat in the smart heat battery provides:

- Substantial savings on your heat costs, by generating heat when prices are low and using heat from the buffer tank when prices are high.

- More efficient use of your heat pump. It can save you as much as 30% as it generates heat at times when weather conditions are favorable.

- Less CO2 in the energy system due to less grid congestion.

The Borg makes smart use of dynamic prices, the weather forecast, and knowledge gained about your home's heat demand in previous situations. Great for the environment and your wallet!

Water is very suitable for storing energy: it has a high heat capacity. In addition, it is clean and does not burden the environment. It is widely available and cheap. Moreover, when storing in water, you do not have to deal with the decrease in storage capacity over time. This would be the case with an electric battery.

The buffer tank is designed in such a way that it is strong enough to support a moving van above it on the driveway, for example.

Important: there is a good reason there are no moving parts in the buffer tank. Nothing can break because of wear and tear. The parts that you occasionally want to access for maintenance are in your home. We even update the software remotely.

The Borg is made for heat storage in individual homes. Heat storage in your garden offers freedom and flexibility for individuals and professionals!

The ideal home for the Borg?

- A well-insulated home
- With a driveway or garden for the buffer
- Preferably detached, semi-detached or corner house (because of accessibility for groundwork)
- Underfloor heating or other low-temperature heating
- A heat pump that is on our shortlist

New construction? Perfect, as the buffer tank can even be under the home.

Renovation and preservation, so thorough that it's almost new construction? Yes, definitely.

An existing home? Energy efficient, with underfloor heating and an all-electric heat pump? Yes, even then a Borg is often a good fit.

Borg is willing to consider whether the system can be taken back for renewed life, in whole or in parts. For exact steps for the take-back process, please contact us.

The underground buffer tank is designed to last up to 50 years. The other components of the Borg are also designed to last perhaps 50 years as well. The pumps and valves included in the connection set do not last as long. Replacing these moving parts is easy as the connection set is always accessible.

Once the Borg is in the ground, a high groundwater level doesn't matter. Because of its weight plus reinforcement, the buffer tank is always stable.

At the time of placement, however, a high groundwater level is something to take into account. If the groundwater level is too high, the water must be temporarily drained. This therefore increases the cost of the groundwork. The level of groundwater varies throughout the year. It may be convenient to time your placement to avoid these additional costs.

In the case of new construction, the buffer tank can be placed under the home (within the area of the foundation). For an existing home, the buffer will be in the garden or under the driveway.

To place the buffer tank, a pit of approximately 5x4x2 meters (lxwxh) is needed.

Depending on the type of soil, sometimes straight walls are not possible, but a slope is needed to make a solid pit. This requires more space.

During the Borg Inventory Interview, the best location to place the buffer at your home is examined. Expertise from external experts may be needed.

A (small) excavator is needed to dig the hole. The vehicle must of course be able to reach the spot.

The rule of thumb for digging in the garden is:

- In the case of a foundation on piles, the digging takes place at least 2 meters from the facade.

- In the case of a foundation on steel, the digging takes place at least 4 meters from the facade.

The Borg Smart Software combines data from the temperature in the buffer tank, the weather forecast, dynamic energy prices up to 34 hours ahead, and the expected heat demand in the home for a particular type of weather.

With this information, the software knows how much energy is needed to heat the home for the next few days. We then know how necessary it is to recharge the buffer tank and thus if it is necessary to purchase energy at this time.

Weather conditions determine not only the heat demand in the home but also how efficiently the heat pump can generate that heat (Coefficient of Performance or COP).

The smart software constantly looks for the times when the COP is as high as possible, and the price is as low as possible. The software makes these calculations and trade-offs several times a day. In this way, the buffer tank is always prepared for the heat demand in the home and can constantly çherry-pick when it comes to the cost of heating the buffer. Now that's smart!

No, the heat pump is controlled by Borg's Borg Control Box (BCB). Good to know: in case of failure, each component can be tested separately. This includes the heat pump.

The Borg T4 consists of the following components.

Heat battery
A well-insulated Heat battery with a capacity of 4.000 liters of water, made of high-quality EPS. The buffer tank is placed underground. For an existing home in the garden or under the driveway and for a new home under the house.

Connection set
The connection set consists of two boxes that together make sure the heat battery, the heat pump, and the home are in close connection. The central hub! One component is always placed somewhere on the ground floor (this can be an insulated shed or garage). The other component can be placed more flexibly, for example, in the attic.

Wiring harness
This is the underground connection between the buffer tank and the part of the connection set that comes on the ground floor.

Borg Control Box (BCB)

The Borg Control Box is a smart and predictive controller. It receives its strategy from the cloud and issues commands to the heat pump and heat battery. The data it uses as input are the weather forecast, dynamic electricity prices (always available a few days in advance) and knowledge about the heat demand of the home in a certain weather type.

The smart software makes sure that the home uses heat from the buffer tank when electricity prices are high, and that the buffer tank is correctly charged with heat at times when there is plenty of sun and wind and thus prices are low.

No, even though the software uses the cloud for control, the system continues to work even without a connection.

Dynamic energy prices are rates that change based on the supply and demand of energy at a given time. This means that prices can change hourly, and consumers can access these prices 24 hours in advance. By setting your system up properly for these prices, you can save money by buying cleverly.

Another advantage of dynamic energy pricing is that it does not include a risk margin like fixed contracts do. Energy suppliers often apply a risk margin with fixed contracts because they are not sure how market prices will evolve. With dynamic prices, this is not the case: prices are directly linked to the market. This means that consumers may pay less in the case of dynamic rates than with fixed contracts.

It is important to emphasize that dynamic energy pricing is especially smart when people can actually control their demand. The Borg allows you to do just this for heat consumption. Heat is purchased at times when prices are low. The buffer delivers heat to the home at times when prices are high.

For more information on dynamic rates, a complete list of current providers, as well as the risks of dynamic rates, please visit the Consumers Union website (article in Dutch).

https://www.consumentenbond.nl/energie-vergelijken/dynamisch-energiecontract

We are currently working with several types of heat pumps from the brands Stiebel Eltron and Nibe, namely:

Stiebel WPL-A 07 HK Premium
Stiebel WPL-20 AC
Stiebel WPL 25 AC
Nibe S2125-12

For the first deliveries in 2024, these are the heat pumps we can work with.

During 2024, we will continue to expand the list of heat pumps that the Borg can control.

In the 4,000 liters of water in the buffer, over 210 kWh of thermal energy can be stored. That is equivalent to about six 10 kWh electric home batteries!

This depends very much on the energy consumption of your home, the degree of insulation, the type of heating, how many people live there, etc. The type of energy contract you have now is also important. Is the home still heated with natural gas or already with a heat pump? What is the capacity of the heat pump? In other words, it is difficult to give a straightforward answer.

As a rough indication, the savings on heating bills vary from 30% to well over 60%. Therefore, the payback period is usually between 5 and 15 years.

Everyone agrees that energy storage is a necessary step in the energy transition. Unfortunately, no government subsidies are yet applicable to heat storage. Together with industry organization Energy Storage NL, we are doing our best to get heat storage on the ISDE subsidy list, for example.

The first question, of course, is whether you have the space to place the underground buffer tank.

To use the Borg, you need an (all-electric) heat pump. For this, the home must be sufficiently insulated to retain heat properly.

It is also important to remember that a heat pump works most efficiently when heating at low and medium temperatures. So, it's best if your home is heated with underfloor heating or convectors.

The Borg is not suitable for homes heated by hot-air heating or district heating.

The connection set is installed in your home. It consists of a low-pressure cabinet and a high-pressure cabinet. These are both approximately the size of a heat interface unit of district heating.

The high-pressure cabinet releases the heat for your heating and hot water. It can be placed anywhere in the home. If you are going off gas, the location of the boiler is a logical spot. All the pipes are already there.

This high-pressure connection box also comes with the Borg Control Box (Wi-Fi box format). This receives the strategy from the cloud and issues commands to the heat pump and the buffer tank.

The low-pressure cabinet is always placed on the ground floor and preferably as close as possible to the buffer tank. This could be in a boiler room in your home, an insulated garage, or a shed in your garden. From this cabinet, a high-pressure pipe goes to the high-pressure cabinet.

The location of the heat pump is pretty flexible. As long as it goes somewhere between the low-pressure and the high-pressure cabinet. This could be in the attic, on the roof, in a boiler room somewhere in the home, but also in the insulated shed or garage.

Don't order yet, but you can reserve your Borg!

How does the reservation process work?
Via the button 'Reserve the Borg T4' you express your interest and reserve a Borg for 2024.
After a deposit of € 200 a Borg is reserved for you.

Please note:
In the coming months, our focus is still entirely on the technical optimization of the Borg.
Booking now means we will contact you in Q2 of 2024 for the Borg Inventory.

What is the Borg Inventory Interview?

The Inventory Interview is an online conversation with our technical expert in which we check whether the Borg indeed is suitable for your home. In terms of space in the garden, but also in terms of insulation, type of heating, your installations, etc.

If you want to proceed after the Inventory Interview, you will get a quote for the purchase, placement, and installation.

Your deposit of € 200 will be deducted from the purchase price.
Should we - for whatever reason - not reach a deal, you will receive € 100 in return.

A rough estimate of the costs to place the system is € 3.000 to € 8.000 incl. VAT for a newly built house and € 6.000 to € 11.000 incl. VAT for an existing house. This depends on the accessibility of the location where the buffer tank will be placed. Is drainage needed, must the excavated soil be removed or can it remain in another place in the garden, etc.

In an existing home, modifications are probably also needed to make the house and installations Borg-ready. For example, installing and relocating plumbing and connection points for the connection set. Perhaps you want to insulate your shed or garage to accommodate the low-pressure connection set? If you don't have a heat pump yet, those are also costs you'll want to factor in.

So, costs for these home modifications depend on the baseline situation of your home. The installer who visits you after the Borg Inventory Interview can make a good estimate.

For new construction it is straightforward: you include the Borg in your design.

For thorough renovation and preservation of your existing home, it may be just as easy as for new construction. When your home and its installations are completely overturned, the Borg is easy to fit in.

The purchase price of the Borg T4 is €15,000 including VAT. This does not include the costs for installation and any modifications in your home that are necessary to install the Borg.

For this you get: the buffer in your garden, the two cabinets of the connection set that are placed in your house or your shed, the underground connection between the buffer and the connection set, and the control box that regulates the control from the cloud.

Storing heat in the smart heat battery provides:

- Substantial savings on your heat costs, by generating heat when prices are low and using heat from the buffer tank when prices are high.

- More efficient use of your heat pump. It can save you as much as 30% as it generates heat at times when weather conditions are favorable.

- Less CO2 in the energy system due to less grid congestion.

The Borg makes smart use of dynamic prices, the weather forecast, and knowledge gained about your home's heat demand in previous situations. Great for the environment and your wallet!

Water is very suitable for storing energy: it has a high heat capacity. In addition, it is clean and does not burden the environment. It is widely available and cheap. Moreover, when storing in water, you do not have to deal with the decrease in storage capacity over time. This would be the case with an electric battery.

The buffer tank is designed in such a way that it is strong enough to support a moving van above it on the driveway, for example.

Important: there is a good reason there are no moving parts in the buffer tank. Nothing can break because of wear and tear. The parts that you occasionally want to access for maintenance are in your home. We even update the software remotely.

The Borg is made for heat storage in individual homes. Heat storage in your garden offers freedom and flexibility for individuals and professionals!

The ideal home for the Borg?

- A well-insulated home
- With a driveway or garden for the buffer
- Preferably detached, semi-detached or corner house (because of accessibility for groundwork)
- Underfloor heating or other low-temperature heating
- A heat pump that is on our shortlist

New construction? Perfect, as the buffer tank can even be under the home.

Renovation and preservation, so thorough that it's almost new construction? Yes, definitely.

An existing home? Energy efficient, with underfloor heating and an all-electric heat pump? Yes, even then a Borg is often a good fit.

Borg is willing to consider whether the system can be taken back for renewed life, in whole or in parts. For exact steps for the take-back process, please contact us.

The underground buffer tank is designed to last up to 50 years. The other components of the Borg are also designed to last perhaps 50 years as well. The pumps and valves included in the connection set do not last as long. Replacing these moving parts is easy as the connection set is always accessible.

Once the Borg is in the ground, a high groundwater level doesn't matter. Because of its weight plus reinforcement, the buffer tank is always stable.

At the time of placement, however, a high groundwater level is something to take into account. If the groundwater level is too high, the water must be temporarily drained. This therefore increases the cost of the groundwork. The level of groundwater varies throughout the year. It may be convenient to time your placement to avoid these additional costs.

In the case of new construction, the buffer tank can be placed under the home (within the area of the foundation). For an existing home, the buffer will be in the garden or under the driveway.

To place the buffer tank, a pit of approximately 5x4x2 meters (lxwxh) is needed.

Depending on the type of soil, sometimes straight walls are not possible, but a slope is needed to make a solid pit. This requires more space.

During the Borg Inventory Interview, the best location to place the buffer at your home is examined. Expertise from external experts may be needed.

A (small) excavator is needed to dig the hole. The vehicle must of course be able to reach the spot.

The rule of thumb for digging in the garden is:

- In the case of a foundation on piles, the digging takes place at least 2 meters from the facade.

- In the case of a foundation on steel, the digging takes place at least 4 meters from the facade.

The Borg Smart Software combines data from the temperature in the buffer tank, the weather forecast, dynamic energy prices up to 34 hours ahead, and the expected heat demand in the home for a particular type of weather.

With this information, the software knows how much energy is needed to heat the home for the next few days. We then know how necessary it is to recharge the buffer tank and thus if it is necessary to purchase energy at this time.

Weather conditions determine not only the heat demand in the home but also how efficiently the heat pump can generate that heat (Coefficient of Performance or COP).

The smart software constantly looks for the times when the COP is as high as possible, and the price is as low as possible. The software makes these calculations and trade-offs several times a day. In this way, the buffer tank is always prepared for the heat demand in the home and can constantly çherry-pick when it comes to the cost of heating the buffer. Now that's smart!

No, the heat pump is controlled by Borg's Borg Control Box (BCB). Good to know: in case of failure, each component can be tested separately. This includes the heat pump.

The Borg T4 consists of the following components.

Heat battery
A well-insulated Heat battery with a capacity of 4.000 liters of water, made of high-quality EPS. The buffer tank is placed underground. For an existing home in the garden or under the driveway and for a new home under the house.

Connection set
The connection set consists of two boxes that together make sure the heat battery, the heat pump, and the home are in close connection. The central hub! One component is always placed somewhere on the ground floor (this can be an insulated shed or garage). The other component can be placed more flexibly, for example, in the attic.

Wiring harness
This is the underground connection between the buffer tank and the part of the connection set that comes on the ground floor.

Borg Control Box (BCB)

The Borg Control Box is a smart and predictive controller. It receives its strategy from the cloud and issues commands to the heat pump and heat battery. The data it uses as input are the weather forecast, dynamic electricity prices (always available a few days in advance) and knowledge about the heat demand of the home in a certain weather type.

The smart software makes sure that the home uses heat from the buffer tank when electricity prices are high, and that the buffer tank is correctly charged with heat at times when there is plenty of sun and wind and thus prices are low.

No, even though the software uses the cloud for control, the system continues to work even without a connection.

Dynamic energy prices are rates that change based on the supply and demand of energy at a given time. This means that prices can change hourly, and consumers can access these prices 24 hours in advance. By setting your system up properly for these prices, you can save money by buying cleverly.

Another advantage of dynamic energy pricing is that it does not include a risk margin like fixed contracts do. Energy suppliers often apply a risk margin with fixed contracts because they are not sure how market prices will evolve. With dynamic prices, this is not the case: prices are directly linked to the market. This means that consumers may pay less in the case of dynamic rates than with fixed contracts.

It is important to emphasize that dynamic energy pricing is especially smart when people can actually control their demand. The Borg allows you to do just this for heat consumption. Heat is purchased at times when prices are low. The buffer delivers heat to the home at times when prices are high.

For more information on dynamic rates, a complete list of current providers, as well as the risks of dynamic rates, please visit the Consumers Union website (article in Dutch).

https://www.consumentenbond.nl/energie-vergelijken/dynamisch-energiecontract

We are currently working with several types of heat pumps from the brands Stiebel Eltron and Nibe, namely:

Stiebel WPL-A 07 HK Premium
Stiebel WPL-20 AC
Stiebel WPL 25 AC
Nibe S2125-12

For the first deliveries in 2024, these are the heat pumps we can work with.

During 2024, we will continue to expand the list of heat pumps that the Borg can control.

In the 4,000 liters of water in the buffer, over 210 kWh of thermal energy can be stored. That is equivalent to about six 10 kWh electric home batteries!

This depends very much on the energy consumption of your home, the degree of insulation, the type of heating, how many people live there, etc. The type of energy contract you have now is also important. Is the home still heated with natural gas or already with a heat pump? What is the capacity of the heat pump? In other words, it is difficult to give a straightforward answer.

As a rough indication, the savings on heating bills vary from 30% to well over 60%. Therefore, the payback period is usually between 5 and 15 years.

Everyone agrees that energy storage is a necessary step in the energy transition. Unfortunately, no government subsidies are yet applicable to heat storage. Together with industry organization Energy Storage NL, we are doing our best to get heat storage on the ISDE subsidy list, for example.

The first question, of course, is whether you have the space to place the underground buffer tank.

To use the Borg, you need an (all-electric) heat pump. For this, the home must be sufficiently insulated to retain heat properly.

It is also important to remember that a heat pump works most efficiently when heating at low and medium temperatures. So, it's best if your home is heated with underfloor heating or convectors.

The Borg is not suitable for homes heated by hot-air heating or district heating.

The connection set is installed in your home. It consists of a low-pressure cabinet and a high-pressure cabinet. These are both approximately the size of a heat interface unit of district heating.

The high-pressure cabinet releases the heat for your heating and hot water. It can be placed anywhere in the home. If you are going off gas, the location of the boiler is a logical spot. All the pipes are already there.

This high-pressure connection box also comes with the Borg Control Box (Wi-Fi box format). This receives the strategy from the cloud and issues commands to the heat pump and the buffer tank.

The low-pressure cabinet is always placed on the ground floor and preferably as close as possible to the buffer tank. This could be in a boiler room in your home, an insulated garage, or a shed in your garden. From this cabinet, a high-pressure pipe goes to the high-pressure cabinet.

The location of the heat pump is pretty flexible. As long as it goes somewhere between the low-pressure and the high-pressure cabinet. This could be in the attic, on the roof, in a boiler room somewhere in the home, but also in the insulated shed or garage.