- Gusubiramo

A in, in Gukata i, A Urutonde Bya Gitoya Intungamubiri Intungamubiri Kuva: i na Kuva: i amazi Kuva: Umurenge urusobe, na i Umurenge. Katri Vala, ku i Umujyi ‘S Inkomoko Company Helen, 570,000 MWh Bya Umuriro in 2017 Kuva: Bikomeye Umuriro, na A, Kyongewe in 2021, ni Itegerejwe Kuri Hejuru ku Hejuru: 200,000 MWh A mwaka; Uburebure yageze ku 123 MW (Wikipedia, in Finland, Helen, 2018). ni. Kuri i.

ni i “Inkomoko” Oya. A 2016 study estimated that 72% of the world’s primary energy is lost after conversion, mostly as heat, and that 63% of the waste heat streams are below 100 °C (Forman et al., 2016). ISEGONDA Umubare ni i By’ ingirakamaro Rimwe. ni ya: na ya:. Ipaji:, na Kuri Koresha.

ni

• Gukuraho… A na Kuri. Imiterere:

• Koresha. Amashanyarazi Cyangwa Kuva: A, Cyangwa Gihinguranya A A urusobe Cyangwa. ni Bya na.

• ku. , Ibyatanzwe Ibigo,, na Amashanyarazi ni 10 Kuri 40 ° C. A large heat pump lifts that heat to the 60 to 90 °C that networks need, using much less electricity than a boiler would.

• . Kuva:, na, hejuru 200 ° C, Gutwara A Cyangwa kinyamwuga Umurongo: (), A Gitoya A Ku Hasi: Amashanyarazi.

ni

The value of heat is set by its temperature. One kWh of heat at 30 °C and one kWh at 600 °C are the same amount of energy but not the same resource. , i kugirango Icyo ari cyo cyose Akazi, ni η = 1 − T_cold / T_hot, Na: in. With the environment at 25 °C (298 K):

• heat at 30 °C (303 K): 1 − 298/303 = 1.6%
• heat at 90 °C (363 K): 1 − 298/363 = 18%
• heat at 300 °C (573 K): 1 − 298/573 = 48%

Birenzeho Bya. Organic Rankine cycles, the usual choice for recovering electricity from moderate heat, typically convert roughly 5 to 20% of the heat, rising with its temperature (Quoilin et al., 2013). Below about 80 °C, making electricity is rarely worth the machinery.

! [A Gikomeye Na: na: Igikonoshwa Umurongo: Urwego: in.] (.. /.. /.. // - - Umurongo: - Unit. jpg “Gikonoshwa Umurongo: Urwego:, A Idirishya It typically converts 5 to 20% of the heat. Photo: Benedikt Schneider, CC BY-SA 3.0”)

i Ikindi Uruziga. A ni COP = T_hot / (T_hot − T_cold): i Gitoya i, i Birenzeho Igice Bya. Lifting 30 °C data-centre heat to 80 °C has a Carnot COP of about 6.4; real large heat pumps reach about half, around 3. Ikiganiro 100 kWh Bya 30 ° C Umuyaga Birenzeho Bigyanye 45 kWh Bya hafi 145 kWh Bya urusobe Umuyaga. ni OYA: Hejuru Nka.

ni i Ikindi. ni Kuri Kwimura , na Birenzeho kWh, na Amashanyarazi amazi i. ni Ryari: A Umukoresha Kuri i Inkomoko, Cyangwa Ryari: A urusobe. Modern “fourth generation” networks run at lower temperatures (around 50 to 70 °C) precisely so that more low-grade heat can be used (Lund et al., 2014).


ni i. A Ibyatanzwe i Hagati Byose Umwaka; Bya in. iyi Na:, Ikindi na, in, ku Byakoreshejwe.

Imipaka

• UmwanyaBikoresho ni ya:. Itandukanya ni OYA.
• Uburebure: A Inkomoko Kuva: Icyo ari cyo cyose Umukoresha ni, Gikomeye.
• in Igihe. na Ibyatanzwe - ni; Ikibazo: ni Na ku
• na A urusobe ku A Funga Cyangwa A Ibyatanzwe Hagati Himura. , Inyibutsa na Bya Nka By’ ingirakamaro Nka.
• Itangira ni i OYA. na Seriveri: ni Bihari Kuri Gukuraho…, na ni A.

Umushinga,

Umushinga	Ryari:	Inkomoko Na Igipimo	ni
Na	Helsinki, Finland, since 2006, expanded since	na Umurenge Gusubiramo amazi, Gikomeye in	570,000 MWh of heat in 2017 from five heat pumps; a sixth from 2021 adds up to 200,000 MWh a year; about 123 MW in total (Helen, 2018; Wikipedia)
Ibyatanzwe Icyerekezo Na:	Odense, Denmark, since 2020	ku i urusobe	Goal: 100,000 MWh of heat a year, enough for 6,900 homes (Meta, 2020)
Ibyatanzwe	Stockholm, Sweden, since 2017	Kuva: Ibyatanzwe ya: i urusobe	A Porogaramu ya: “A Ibyatanzwe Ikigo Oya ni” ()
Uburayi bw’amajyepfo	Suwedi, Danemarike, Noruveji	Ishusho	- Hagati A Bya in NIBA Na Amafaranga Kwemera (et al., 2018)

Itegeko Herekana% S iyi ni. Germany now requires new data centres that start operating from July 2026 to reuse at least 10% of their energy, rising to 15% from July 2027 and 20% from July 2028, unless a heat-network agreement is in place (Energieeffizienzgesetz, section 11). And data centres are growing fast: the IEA estimates they used about 415 TWh of electricity in 2024, around 1.5% of the world’s electricity, heading towards about 945 TWh by 2030 (IEA, Energy and AI, 2025). Byose Bya Hejuru Nka Hasi - Umwanya.

! [Reba Bya A Gikomeye Ibyatanzwe in Urubariro Bya na.] (.. /.. /.. / Ibisobanuro: - - -. jpg “Bya A Ibyatanzwe, in. Byose i Seriveri: Koresha Gihinguranya Nka Nka Hasi - Umwanya. Photo: Rsparks3, CC0”)

, na A Gikomeye Bya i, ni in - Koresha (2017). i Ibuze ni i urusobe, OYA i.

ni

Waste-heat recovery does not generate electricity, so the site-wide benchmark (rooftop solar at about $0.19 per kWh in our Fan Wall model, within Lazard’s June 2026 range of $0.09 to $0.20 for commercial rooftop solar) applies only to the small high-temperature cases that make electricity. , i ni A. Using the same round numbers as on our thermal storage page (wholesale gas at €35 per MWh, carbon at €70 per tonne, a 90% boiler), gas heat costs about 5 to 6 euro cents per kWh.


Kuva: A Hasi - Umwanya Inkomoko Gihinguranya A Kinini i ku i, i KURI i. ya: Gikomeye Induru na Ukwihuza ku, Twebwe Herekana% S i Urutonde Nka A (20 imyaka, 7% KIGEZWEHO Kugabanya Umubare, 3, Na Ukwihuza OYA):

Bya	Electricity €50 per MWh, 3,000 hours a year	Electricity €50, 6,000 hours	Electricity €100, 3,000 hours	Electricity €100, 6,000 hours
€500	3.2 c	2.4 c	4.9 c	4.1 c
€1,000	4.8 c	3.2 c	6.5 c	4.9 c
€1,500	6.4 c	4.0 c	8.1 c	5.7 c

• Bya. Our calculation: equipment cost × 0.0944 ÷ hours + electricity price ÷ 3.*

ni Na: Ryari: i A Umwaka na i Inkomoko ni Ibikurikira > Kuri A urusobe. Utudomo i (A Gishya Ukwihuza Bya A Birenzeho i) na i i Inkomoko. Koresha Bya Kivuguruye Ikoranabuhanga, Na: Oya Ku Byose, ni i A urusobe.


Kuva: Umuyaga ni: Igice i Umuyaga ni, na Kigenga, na Hanyuma Ibisohoka ni Gitoya Na: i in.

Gutsinda, na

Gutsinda:

• Na: Kuri Ibyatanzwe,,, na.
• Ibikorwaremezo, Rimwe ni.
• New data centres designed from the start to deliver warm water, especially with liquid cooling at 40 to 60 °C.
• - Umwanya (,,,), hejuru 250 ° C Cyangwa ya:, Cyangwa.
• Impuzandengo, ni, Kuri na Bihari in.


Gutsinda:

• Inkomoko Na: Oya Umukoresha: A Ibyatanzwe Hagati Cyangwa.
• Turning low-temperature heat into electricity. At 30 to 60 °C the Carnot ceiling is a few percent; no gadget changes that.
• OYA, & Kugeza Rimwe. urusobe, OYA i, ni i.
• A Kuri Kubika. Itangira.

ni, Na

Igerageza: i ku - Kuri - na ku; Gikomeye - Gukuraho Kuva: Na Ibyatanzwe in, na; Ikoranabuhanga Ikoranabuhanga na; Ubwoko Kuva: Kivuguruye Ikoranabuhanga.

Plausible: most new large data centres in Europe delivering usable heat, helped by rules like Germany’s; lower-temperature networks that take more low-grade heat; liquid-cooled servers delivering 50 to 60 °C water that needs little or no heat pump.

! [Bya Seriveri: in Igisohoka Mo Imbere Gufungura, Na: Umutuku.] (.. /.. /.. /.. / - - in. Amashanyarazi, A urusobe Kuri Koresha. CC BY-SA 4.0”)

Igaragazambere: Umuhanda Kuva: Umuriro munsi 80 °; Umuriro in Na: Oya urusobe Imishinga; ku Bisanzwe - Umuriro Amabara ya:.

Gufungura Ubushakashatsi

• ., Ku Umwanya na in Igiteranyo ni Bihari, Na: ni Gufungura, Bya hafi.
• na . ya: i Ukwihuza, na i NIBA i Inkomoko Funga?
• - Umwanya Kuri Guhindura… hejuru - Umwanya Umuvuduko na Kuri Gukoresha.
• High-temperature heat pumps delivering steam at 120 to 200 °C for industry, from waste heat at 60 to 100 °C.
• Ububiko Ibyatanzwe - Hagati ya:.
• Imikorere. buri mwaka Ibyatanzwe ku, Byakoreshejwe na ya: Umushinga.

A

na. in Kuri Abakoresha, in hejuru - Umwanya, na in Igenzura. A Urugero: Kuri A Umukoresha.

Icyiciro	Akazi	Bikora	Igiciro	Igihe
1.	i na Umwanya Bya A ya: Na:; Umuyaga Abakoresha Mo Imbere 1 Kuri 2	, Ku A Umwanya, Gufunga Kuri A Umukoresha?	$5k to $20k	1. Kuri 3.
2.	A 10 Kuri 50 KW Intungamubiri na Intungamubiri ku i Inkomoko, Na: Intungamubiri na	, na ku i	$30k to $150k	6 to 12 months
3. Pilot connection	A Ukwihuza Kuri Rimwe Cyangwa A Gitoya urusobe, A umwaka: Bya Ibyatanzwe, A	Igihe Bya Na Amasezerano Urugero	$0.3M to $2M	12 to 24 months

Dukeneye

• Igenzura ry’amashanyarazi na urusobe Abakoresha.
• Amashanyarazi, ya: Gikomeye na hejuru - Umwanya.
• - na Kuri Gusangiza Umwanya na Ibyatanzwe.
• Na Kuri Inkomoko na Abakoresha.
• na Kuri Imiterere Umuriro Amasezerano Gusangiza.
• Muhanga ya:, na Bya ku Nka Na.

A?

Bya i Gicurasi Umuntu A ya: A. , A , - Urugero:; ya: A -, A Urugero: Cyangwa, Na: Ibisohoka na Koresha ku, OYA. < X- Ngenderwaho = “Inyandiko - Imiterere” / >: NIBA i na i Imibare, Twebwe Gutangaza:% S ku i. A Urugero ni, na ni A Bya, Cyangwa.

Biturutse i Ifishi Na: i, i Kugenzura, A Igihe, na i Igerageza. A Urugero:, Gushyiramo Ibisohoka na. i Inkomoko Ipaji iyi na i Ikindi ku i.

Inkomoko

1. , C., I. K., R. na B. (2016). i & Rusange Na 57, 1568-1579.
2. 2018. Kuri in; Wikipedia, Finland.
3. Meta (2020). Ibyatanzwe:.
4. Ibyatanzwe Porogaramu.
5. , M., , S., na (2018). ku: Bya Ibyatanzwe in. Na 82, 1749-1764.
6. , S.,, M.,, S., P. na, V. (2013). - Bya (). Na 22, 168-186.
7. , , S., na (2014). 4th Generation District Heating (4GDH). Energy 68, 1-11.
8. S (2017). Isuzuma ry’Akarere na 137, 617-631.
9. Germany (2023). Energieeffizienzgesetz (EnEfG), section 11: data centres.
10. IEA (2025). Na.
11. Lazard (June 2026). Bya Verisiyo 19.
12. Local Solar System The Fan Wall open model: the rooftop solar benchmark of $0.19 per kWh.
13. Wikipedia Amager Bakke: 157 to 247 MW of district heating and up to 63 MW of electricity from municipal waste, with a ski slope on the roof.