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Home
About
Overview
Consortium
Synergies
Demo sites
incampus
Varanto – VECTES
Transfer sites
Outputs
News
Events
Contact us
INTERSTORES Survey for DHC operators & the industrial sector
Who we need to fill out this form?
Technical director
Network development manager, Asset manager
Strategy manager, Decarbonisatiom manager; Energy manager
Plant manager
Sustainability director
CAPEX decision-maker
Identified Demo and Transfer Sites
1. What are the highest temperature levels required for your heat demand? If multiple temperature levels across process please use the option "Other" to provide more detail.
30 – 60°C
50 - 70°C
60–80°C
50–100°C
100-150°C
≥150°C
Notsure/Not applicable
2. Does your site have cooling demand and/or generate recoverable waste heat? (Multiple answers possible)
Yes, significant cooling demand
Yes, cooling demand is present but limited
Yes, recoverable waste heat is available
Waste heat is already utilised
No cooling demand or waste heat
Not sure
3. How does your need for heat vary over time?
Constant throughout the year, daily variation
Constant throughout the year, weekly variation
Seasonal with peak in winter (space heating)
Seasonal with peak at other moments of the year
Other
3.1 If you responded with "Other" to our previus question please provide more details.
4. Within what time frame do you typically evaluate the economic value of new energy solutions or efficiency measures (e.g., heating systems)?
Short-term payback (2–5 years) – aligned with operational budgeting cycles
Medium-term planning (5–10 years) – suitable for major system upgrades
Long-term investment horizon (10–15 years) – aligned with infrastructure renewal
Strategic capital planning (15–20 years) – e.g. for district energy or new facility planning
Very long-term perspective (20–30 years) – e.g. for full asset lifecycle or public infrastructure
6. Would your organisation accept a longer payback period for strategic or low-carbon infrastructure (e.g. sTES)?
Yes, significantly longer than usual
Yes, slightly longer than usual
Only if supported by public funding or risk-sharing mechanisms
No, same payback expectations apply
7. Are you subject to any regulatory constraints requiring reductions in carbon emissions from heat supply? (Multiple answers possible)
Yes, to meet a mandatory carbon cap/reduction set by legal obligations
Yes, to comply with sector-specific regulations or emission standards
No regulatory constraints apply
Other
7.1 If you responded with "Yes" or "Other" to our previous question please provide more details.
8. Do you have any opportunities or voluntary motivations to improve the carbon footprint of your heat supply? (Multiple answers possible)
Yes, we have made a voluntary commitment to reduce emissions
Yes, to improve the sustainability profile of our services/products and enhance market value
Yes, to obtain environmental labels or certifications valued by clients or investors
No, we do not currently pursue carbon reduction as a strategic goal
9. What is your current source of heat?
District heating
Oil
GAs
Biomass
Electric heating
Air-source heat pump
Ground-source heat pump
Solar thermal
Other
10. Does your site generate recoverable waste heat?
Yes, continuously available
Yes, but only at certain times
Limited or low-grade waste heat
No recoverable waste heat
Not sure
11. Is waste heat currently utilised or planned to be utilised on-site?
Yes, already fully utilised
Partially utilised
Not utilised, but potential identified
No identified potential
Not sure
12. How critical is continuous heat supply for your operations?
Critical – interruptions are not acceptable
High – short interruptions are manageable with backup
Moderate – some flexibility in operation
Low – processes can be easily rescheduled
13. Who owns your main heat/energy system(s)?
Fully owned by our organisation
Co-owned with other stakeholders
Owned by a third party (e.g. ESCO, utility)
Not sure
14. Who is responsible for operating and managing your energy system(s)?
Managed internally by our organisation
Managed by a third-party service provider (e.g. ESCO, contractor)
Jointly managed with partners
Not applicable (we purchase heat as a service)
Not sure
15. What was your approximate average cost of heat supply over the past 5 years? (Please consider the total cost of heat delivered, including energy costs and system-related costs. If unsure, provide your best estimate.)
Under 0,02 €/kWh
0,02 - 0,05 €/kWh
0,05 - 0,10 €/kWh
0,10 - 0,20 €/kWh
Over 0,20 €/kWh
Not sure
15.1 If possible please provide more details regarding your answer to the previous question.
16.1 How do you prioritise changing of source of heat supply for a cheaper one?
16.2 How do you prioritise changing of source of heat supply for a more sustainable one. within your organisation?
16.3 How do you prioritise implementing a local energy storage system within your organisation?
16.4 How do you prioritise changing the way to manage your energy systems within your organisation?
16.5 How do you prioritise implementing waste heat recovery solutions within your organisation?
16.6 How do you prioritise connecting to a district heating system within your organisation?
16.7 How do you prioritise implementing a large-scale / seasonal thermal storage within your organisation?
17.1 How do you prioritise limiting risk of price volatility when selecting heat supply solutions?
17.2 How do you prioritise capacity to easily change supplier / technology, with short term contract when selecting heat supply solutions?
17.3 How do you prioritise limiting your investment need, even if it means slightly higher total cost of ownership (TCO) price when selecting heat supply solutions?
17.4 How do you prioritise having full capacity to operate / optimize / manage by yourself when selecting heat supply solutions?
17.5 How do you prioritise cheaper price at investment time, even if volatility risk when selecting heat supply solutions?
17.6 How do you prioritise options sustainability when selecting heat supply solutions?
18. Do energy prices costs influence your decisions regarding site location or operational planning?
Yes, electricity costs influence our decisions
Yes, heat costs influence our decisions
Yes, significant variations in energy costs could lead to relocation of activities
Yes, but increased energy costs can be passed on to customers
No, energy costs do not significantly influence these decisions
19. Which of the following activities related to new energy options or optimisation are in place in your organisation? (Multiple answers possible)
Technology monitoring in place and regular reconsideration
Big energy efficiency plan in preparation
Future price forecast, including carbon tax or other fiscal change considered
Have been in involved with local authorities and other local energy users in prospective local sustainable heat planning
Been involved in other initiatives
Experience with (large-scale, seasonal) thermal storage
Participation in heat planning
Feasibility study for thermal energy storage
20. How familiar is your organisation with seasonal thermal energy storage?
We have implemented a sTES
We have assessed for a sTES
We are aware of sTES, but no concrete action is planned
Not familiar, no previous experience
21. What barriers would prevent your organisation from deploying large-scale and/or seasonal thermal energy storage?
High upfront investment
Long payback period
Technical integration complexity
Limited experience with the technology
Lack of space
Regulatory uncertainty
Organisational complexity
No clear business case
Not relevant for us
Other
If you are interested in participating in the interviews please leave us your contact information.
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