# Adding Values from key/value

**URL:** <https://discourse.nodered.org/t/adding-values-from-key-value/74923>\
**Category:** General\
**Created:** [9 February 2023 01:59 UTC](https://discourse.nodered.org/t/adding-values-from-key-value/74923 "2023-02-09T01:59:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![peachstone](https://avatars.discourse-cdn.com/v4/letter/p/51bf81/32.png) [@peachstone](https://discourse.nodered.org/u/peachstone)\
**Post date:** [9 February 2023 01:59 UTC](https://discourse.nodered.org/t/adding-values-from-key-value/74923/1 "2023-02-09T01:59:29Z")

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I have 2 solar inverters that have the same key/values. I need to add some of these values, such as PV amps, etc. Can anyone lead me in the right direction. Please.....

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**Author:** ![bakman2](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/bakman2/32/6207_2.png) [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Post date:** [9 February 2023 05:15 UTC](https://discourse.nodered.org/t/adding-values-from-key-value/74923/2 "2023-02-09T05:15:34Z")

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You can follow the documentation that describes [how to work with messages](https://nodered.org/docs/user-guide/messages).

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [10 April 2023 05:16 UTC](https://discourse.nodered.org/t/adding-values-from-key-value/74923/3 "2023-04-10T05:16:13Z")

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