BU calculator updated (#2758)

Author: rkronberg

docs/accounts/billing.md

@@ -7,7 +7,7 @@ search:
 
 CSC's services are free of charge for academic research, teaching or training for members of Finnish higher education institutions and state research institutes. **Billing Units** (BUs) are used to allocate resources for users' projects using our services. CSC's services consume four different Billing Units (CPU, GPU, Cloud, Storage) based on the service and type of usage. You can [apply for Billing Units in MyCSC portal](how-to-apply-for-billing-units.md) and CSC grants BUs to projects. Usage consumes Billing Units but **no actual payment** is required.
 
-<!-- See the [Billing Unit and price calculator](https://research.csc.fi/billing-units#buc){:target="_blank"} at research.csc.fi. -->
+See the [Billing Unit and price calculator](https://research.csc.fi/billing-units#buc){:target="_blank"} at research.csc.fi.
 
 **The billing rates for the services are as follows:**
 

docs/cloud/pouta/vm-flavors-and-billing.md

@@ -1,6 +1,6 @@
 # Virtual machine flavors and Billing Unit rates
 
-Currently, Pouta will bill for the use of 3 resources: storage volumes, floating IPs and virtual machines. The account of use of resources is done in increments of one hour. A good way to estimate usage cost is the [Billing Unit calculator](https://research.csc.fi/resources/#buc) utility (*temporarily unavailable*). All these resources consume Cloud Billing Units, for more information about Billing in CSC, visit the [Billing](../../accounts/billing.md) page.
+Currently, Pouta will bill for the use of 3 resources: storage volumes, floating IPs and virtual machines. The account of use of resources is done in increments of one hour. A good way to estimate usage cost is the [Billing Unit calculator](https://research.csc.fi/resources/#buc) utility. All these resources consume Cloud Billing Units, for more information about Billing in CSC, visit the [Billing](../../accounts/billing.md) page.
 
 - **Storage volumes**: 3,5 Cloud BU / TiB hour. In the [Volumes](https://pouta.csc.fi/dashboard/project/volumes/) page of your project, you can see the existing volumes. The total size of the volume is billed, and it consumes Cloud BUs even if they are not attached to virtual machines. This is because the data is still stored on our systems. Please note that the price of Pouta volumes will be 3,6 Cloud BU / TiB hour for standard volume and 1,8 Cloud BU / TiB hour for capacity volume from year 2026. 
 - **Floating IPs**: 0,2 Cloud BU / hour. Every floating IP reserved to the project is billed. See the list of reserved [Floating IPs](https://pouta.csc.fi/dashboard/project/floating_ips/) of your project. Any extra routers you create and connect to the external network will be also billed for one floating IP. The default router included in the project does not consume Cloud Billing Units.

docs/computing/usage-policy.md

@@ -64,7 +64,8 @@ from GPU capacity compared to using CPUs or which can't be run on CPUs. In
 particular AI/ML workloads are prioritized, since many of them cannot be done
 at all on CPUs. A good rule of thumb is to compare the
 [Billing Unit (BU)](../accounts/billing.md) usage (_e.g._ with
-[`seff`](./performance.md#quick-start-efficiency-report-with-seff))
+[`seff`](./performance.md#quick-start-efficiency-report-with-seff) or the
+[Billing Unit calculator](https://research.csc.fi/resources/#buc))
 of the job on GPUs against CPUs and select the one using less. One CPU BU and one 
 GPU BU are equal in terms of cost.
 

docs/support/faq/sensitive-data-general.md

@@ -36,7 +36,7 @@ The Sensitive Data Services are free of charge for Finnish academics, according
 
 SD Desktop consumes Cloud Billing Units type while SD Connect (Allas) consumes Storage Billing Units type.
 
-* You can find out how many Billing Units SD Desktop and Allas (for SD Connect) will use based on your needs with this [calculator](https://research.csc.fi/billing-units#buc) (*temporarily unavailable*). Here you can estimate the services usage cost in Billing Units or in euros.
+* You can find out how many Billing Units SD Desktop and Allas (for SD Connect) will use based on your needs with this [calculator](https://research.csc.fi/billing-units#buc). Here you can estimate the services usage cost in Billing Units or in euros.
 
 * Once you have estimated how many Billing Units your project would need every year, you can apply for more resources following these [instructions](../../accounts/how-to-apply-for-billing-units.md).