---
title: "Changes to Compare energy products for a month"
method: POST
path: "/v1/comparisons"
---

# Changes to Compare energy products for a month

`POST /v1/comparisons`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 7 of 11 revisions.

- **2026-10-03** `69118612e1fe`: 3 warning, 6 info
- **2026-09-22** `1673faf11a0f`: 115 breaking, 7 warning, 115 info
- **2026-09-17** `c02a1cdf86ba`: 2 info
- **2026-09-08** `ae36d5200c48`: 1 warning
- **2026-09-03** `b2511b6c1cfa`: 3 info
- **2026-09-03** `eafafa285157`: 2 breaking, 4 warning, 1 info
- **2026-08-20** `86688c4fea92`: 1 info

## Changes

- **2026-10-03** `69118612e1fe`: 3 warning, 6 info
  - added the new `Wallonia` enum value to the `electricity/items/productDetails/product/serviceArea/region` response property for the response status `200`
  - added the new `Wallonia` enum value to the `gas/items/productDetails/product/serviceArea/region` response property for the response status `200`
  - added the new `https://vwala.be/problems/supply-point/period-not-supported` enum value to the `type` response property for the response status `422`
  - added the new optional request property `consumption/electricity/injectionDay`
  - added the new optional request property `consumption/electricity/injectionNight`
  - added the optional property `electricity/items/productDetails/version/testAankoopDestinationFr` to the response with the `200` status
  - added the optional property `electricity/items/productDetails/version/testAankoopDestinationNl` to the response with the `200` status
  - added the optional property `gas/items/productDetails/version/testAankoopDestinationFr` to the response with the `200` status
  - added the optional property `gas/items/productDetails/version/testAankoopDestinationNl` to the response with the `200` status
- **2026-09-22** `1673faf11a0f`: 115 breaking, 7 warning, 115 info
  - request property `applicability/hasElectricVehicle` list-of-types was narrowed by removing types `null` from media type `application/json`
  - request property `applicability/hasSolarPanels` list-of-types was narrowed by removing types `null` from media type `application/json`
  - request property `applicability/interestedInSolarInstallation` list-of-types was narrowed by removing types `null` from media type `application/json`
  - the response property `electricity/items/costBreakdown/discounts/anyOf[subschema #1]/lineItems/items/description` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/discounts/anyOf[subschema #1]/lineItems/items/timingMonths` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/energyCost/costCategories/items/lineItems/items/quantity/unit` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/energyCost/costCategories/items/lineItems/items/quantity/value` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/energyCost/costCategories/items/lineItems/items/total/unit` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/energyCost/costCategories/items/lineItems/items/total/value/exclVat` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/energyCost/costCategories/items/lineItems/items/total/value/inclVat` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/energyCost/costCategories/items/lineItems/items/unitPrice/unit` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/energyCost/costCategories/items/lineItems/items/unitPrice/value/exclVat` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/energyCost/costCategories/items/lineItems/items/unitPrice/value/inclVat` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/energyCost/costCategories/items/total/unit` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/energyCost/costCategories/items/total/value/exclVat` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/energyCost/costCategories/items/total/value/inclVat` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/energyCost/grandTotal/unit` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/energyCost/grandTotal/value/exclVat` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/energyCost/grandTotal/value/inclVat` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/injectionFee/anyOf[subschema #1]/costCategories/items/lineItems/items/quantity/unit` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/injectionFee/anyOf[subschema #1]/costCategories/items/lineItems/items/quantity/value` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/injectionFee/anyOf[subschema #1]/costCategories/items/lineItems/items/total/unit` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/injectionFee/anyOf[subschema #1]/costCategories/items/lineItems/items/total/value/exclVat` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/injectionFee/anyOf[subschema #1]/costCategories/items/lineItems/items/total/value/inclVat` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/injectionFee/anyOf[subschema #1]/costCategories/items/lineItems/items/unitPrice/unit` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/injectionFee/anyOf[subschema #1]/costCategories/items/lineItems/items/unitPrice/value/exclVat` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/injectionFee/anyOf[subschema #1]/costCategories/items/lineItems/items/unitPrice/value/inclVat` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/injectionFee/anyOf[subschema #1]/costCategories/items/total/unit` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/injectionFee/anyOf[subschema #1]/costCategories/items/total/value/exclVat` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/injectionFee/anyOf[subschema #1]/costCategories/items/total/value/inclVat` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/injectionFee/anyOf[subschema #1]/grandTotal/unit` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/injectionFee/anyOf[subschema #1]/grandTotal/value/exclVat` became nullable for the status `200`
  - the response property `electricity/items/costBreakdown/injectionFee/anyOf[subschema #1]/grandTotal/value/inclVat` became nullable for the status `200`
  - the response property `electricity/items/productDetails/merchant/cooperative` became nullable for the status `200`
  - the response property `electricity/items/productDetails/merchant/hasNativeApp` became nullable for the status `200`
  - the response property `electricity/items/productDetails/product/characteristics/cooperative` became nullable for the status `200`
  - the response property `electricity/items/productDetails/product/characteristics/directDebitOnly` became nullable for the status `200`
  - the response property `electricity/items/productDetails/product/characteristics/emailInvoiceOnly` became nullable for the status `200`
  - the response property `electricity/items/productDetails/product/characteristics/greenEnergy` became nullable for the status `200`
  - the response property `electricity/items/productDetails/product/characteristics/greenEnergyAndLocal` became nullable for the status `200`
  - …197 more
- **2026-09-17** `c02a1cdf86ba`: 2 info
  - added the optional property `electricity/items/bestBuy` to the response with the `200` status
  - added the optional property `gas/items/bestBuy` to the response with the `200` status
- **2026-09-08** `ae36d5200c48`: 1 warning
  - added the new `https://vwala.be/problems/supply-point/non-residential-gas-not-supported` enum value to the `type` response property for the response status `422`
- **2026-09-03** `b2511b6c1cfa`: 3 info
  - added the new optional request property `consumption/electricity/exclusiveNightConsumption`
  - added the new optional request property `supplyPoint/hasExclusiveNightRegister`
  - added the new `nachtmeter` enum value to the request property `supplyPoint/tariffType`
- **2026-09-03** `eafafa285157`: 2 breaking, 4 warning, 1 info
  - the `region` response property const value `Flanders` was removed for the status `200`
  - the `region` response property const value `Flanders` was removed for the status `200`
  - added the new `BrusselsCapitalRegion` enum value to the `electricity/items/productDetails/product/serviceArea/region` response property for the response status `200`
  - added the new `BrusselsCapitalRegion` enum value to the `gas/items/productDetails/product/serviceArea/region` response property for the response status `200`
  - added the new `Flanders` enum value to the `electricity/items/productDetails/product/serviceArea/region` response property for the response status `200`
  - added the new `Flanders` enum value to the `gas/items/productDetails/product/serviceArea/region` response property for the response status `200`
  - added the new optional request property `supplyPoint/connectionCapacityInKva`
- **2026-08-20** `86688c4fea92`: 1 info
  - request property `productVersionIds` list-of-types was widened by adding types `null` to media type `application/json`

---

[Operation](https://skmtc.dev/vwala/apis/energy-platform-api/docs/v1/comparisons/post.md) - [API](https://skmtc.dev/vwala/apis/energy-platform-api.md) - [Page](https://skmtc.dev/vwala/apis/energy-platform-api/changes/v1/comparisons/post)