# Which energy management platforms work with smart meter integration for existing legacy building automation systems?

<p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">I've been researching <a class="a a--md" elv="true" href="https://www.g2.com/categories/energy-management">energy management platforms</a> with smart meter integration for existing legacy building automation systems  for a client brief and the legacy infrastructure angle keeps coming up as the real blocker. Replacing BAS hardware isn't on the table for most of the facilities we're covering, so I'm trying to understand what actually integrates with what's already there. A few that I've seen come up for this specifically in the energy management category are:</p><ul>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/spacewell-energy/reviews"><strong>Spacewell Energy</strong></a><strong>:</strong> Supports multiple protocols including Modbus, BACnet, OPC, and MQTT, which reviewers highlight as key for integrating with mixed and legacy infrastructure without replacement.</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/apollo-2024-11-14/reviews"><strong>Apollo</strong></a><strong>:</strong> Integrates energy, IoT, and consumption data from multiple sources into one platform. Does it connect to legacy BAS systems without requiring hardware upgrades?</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/galooli/reviews"><strong>Galooli</strong></a><strong>:</strong> Cloud-based platform reviewers describe as agnostic across asset types, allowing remote monitoring across existing site infrastructure. How well does it handle older metering hardware specifically?</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/energy-elephant/reviews"><strong>Energy Elephant</strong></a><strong>:</strong> Supports real-time IoT sensors and sub-metering systems from multiple data sources. Does it work smoothly when the underlying metering infrastructure is older and less standardized?</li>
</ul><p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">Have you successfully integrated an energy management platform with a legacy BAS without a full hardware refresh? Would love to know what worked and what didn't.</p>

##### Post Metadata
- Posted at: about 2 months ago
- Author title: Marketing Executive
- Net upvotes: 1


## Comments
### Comment 1

&lt;p&gt;The platforms that perform best tend to support common legacy standards such as BACnet, Modbus, OPC, and gateway-based integrations, allowing facilities teams to bring smart meter data into a modern analytics layer without replacing existing controllers.&lt;/p&gt;&lt;p&gt;Before committing to a platform, I&#39;d verify support for your specific BAS version, metering hardware, and communication protocols. The most successful deployments I&#39;ve seen use a phased approach, integrating existing infrastructure first and then gradually adding newer sensors or meters where the business case is strongest.&lt;/p&gt;

##### Comment Metadata
- Posted at: about 2 months ago
- Author title: Marketing Executive





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