From 09de52d6dd96f569eb37c3f6ea0cbd93158ac3c9 Mon Sep 17 00:00:00 2001
From: erffrfez <erffrfez@users.noreply.github.com>
Date: Sat, 23 Oct 2021 05:39:20 +0800
Subject: [PATCH] add reference Riemann integral in "Understanding Home Energy
 Management" (#19251)

---
 source/_docs/energy.markdown | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/source/_docs/energy.markdown b/source/_docs/energy.markdown
index ce40c1d5625..6ff760cabda 100644
--- a/source/_docs/energy.markdown
+++ b/source/_docs/energy.markdown
@@ -17,4 +17,6 @@ Home Assistant is an open platform and so home energy management is not restrict
 - [Integrate your gas consumption](/docs/energy/gas/)
 - [Integrate individual devices](/docs/energy/individual-devices/)
 
+If you have a sensor that returns instantaneous power readings (W or kW), then to add a sensor that returns energy usage or generation (kWh) refer to [Riemann sum integral integration](/docs/integrations/integration/#energy)
+
 <img src='/images/docs/energy/energy-overview.png' alt='Visual representation of how all different energy forms relate.' style='border: 0;box-shadow: none;'>