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Energy · head to head

EnergyCAP vs OpenSearch

EnergyCAP logo

EnergyCAP

Energy

Utility bill and energy management software

From
$1000/month
Rated
-
Full reviewWebsite
OpenSearch logo

OpenSearch

Databases

Open-source search and analytics suite forked from Elasticsearch

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only OpenSearch has a free tier, so it costs nothing to try first.
  • Each has a real cost: EnergyCAP priced per meter per year, so cost scales with how many utility connection points exist rather than with users or sites; OpenSearch diverged from Elasticsearch since 7.10, so clients, plugins and features no longer map one to one
  • They diverge on capability: EnergyCAP covers Utility bill management, OpenSearch covers Full-text search.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which EnergyCAP and OpenSearch actually diverge.

Attributes where EnergyCAP and OpenSearch differ
AttributeEnergyCAPOpenSearch
Starting price$1000/monthFree
Pricing modelsubscriptionOpen source, no licence fee; managed services billed separately
Free tierNoYes
PlatformsWeb, ApiLinux, Docker, Kubernetes, Self-hosted
CategoryEnergyDatabases
Founded1980Unknown

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in EnergyCAP

  • Utility bill management
  • Energy accounting
  • Cost allocation
  • Sustainability reporting
  • Weather normalization
  • Rate analysis
  • Budgeting
  • Benchmarking

Only in OpenSearch

  • Full-text search
  • OpenSearch Dashboards
  • Log analytics
  • Vector search

What people use each for

The jobs each tool is most often brought in to do.

EnergyCAP

  • Tracking utility bills and energy consumption across a property portfolionot OpenSearch
  • Reporting on energy spend and emissions for an organisationnot OpenSearch

OpenSearch

  • Log and observability storage where an Apache-2.0 licence is a requirementnot EnergyCAP
  • Replacing Elasticsearch after the licence change without changing architecturenot EnergyCAP
  • Search plus analytics on one cluster rather than two systemsnot EnergyCAP

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

EnergyCAP

  • Priced per meter per year, so cost scales with how many utility connection points exist rather than with users or sites
  • No figure is published at any level, and every package is quoted by sales
  • Emissions, interval data, bill capture and bill pay are separately priced add ons rather than part of the core platform

OpenSearch

  • Diverged from Elasticsearch since 7.10, so clients, plugins and features no longer map one to one
  • Operationally heavy in the way Elasticsearch is: cluster sizing, shard strategy and JVM tuning are ongoing work
  • Smaller ecosystem of third-party tooling than Elasticsearch, which most integrations still target first
  • Overkill for plain application search, where a dedicated search engine is far simpler

Pricing, plan by plan

EnergyCAP

$1000/month
  • Essential$1000/month
    • Utility bill management
    • Energy tracking
    • Basic reporting
  • Professional$2500/month
    • Advanced analytics
    • Sustainability reporting
    • Budgeting tools
  • Enterprise$undefined/month
    • Unlimited users
    • Custom integrations
    • API access

OpenSearch

Free
  • OpenSearchFree
    • Full functionality
    • Self-hosted
    • No usage limits

Which should you pick?

Choose EnergyCAP if

  • You need utility bill management.
  • You work on Web, Api.
  • You also want energy accounting.
EnergyCAP review

Choose OpenSearch if

  • You need full-text search.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Self-hosted.
  • You also want opensearch dashboards.
OpenSearch review

Questions people ask

Is EnergyCAP or OpenSearch better?
Neither clearly leads. EnergyCAP starts at $1000/month and OpenSearch at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, EnergyCAP or OpenSearch?
OpenSearch has a free tier; the other does not. Paid plans start at $1000/month for EnergyCAP and Free for OpenSearch.
Does EnergyCAP or OpenSearch run on more platforms?
EnergyCAP runs on Web, Api. OpenSearch runs on Linux, Docker, Kubernetes, Self-hosted.
Can I use OpenSearch for free?
Yes. OpenSearch has a free tier, so you can try it without paying. EnergyCAP starts at $1000/month.
What is EnergyCAP best used for?
EnergyCAP is most often used for tracking utility bills and energy consumption across a property portfolio, reporting on energy spend and emissions for an organisation. Of those, tracking utility bills and energy consumption across a property portfolio and reporting on energy spend and emissions for an organisation are not what OpenSearch is typically brought in for.
What can EnergyCAP do that OpenSearch cannot?
EnergyCAP covers Utility bill management, Energy accounting, Cost allocation, Sustainability reporting. OpenSearch covers Full-text search, OpenSearch Dashboards, Log analytics, Vector search.

Answered from the vendors’ own pages

EnergyCAP: What is EnergyCAP's pricing model?

EnergyCAP pricing is based per meter per year. The company allows customers to customize their package by adding premium features such as emissions tracking, interval data analytics, finance modules, bill capture, and bill pay services based on business needs.

Source
OpenSearch: Is OpenSearch free?

Yes, Apache 2.0 licensed under the Linux Foundation. Amazon OpenSearch Service is a paid managed option.

EnergyCAP: How much does EnergyCAP cost?

EnergyCAP does not publish specific pricing amounts. Customers must contact sales for a customized quote based on their meter count and selected features.

Source
OpenSearch: Why does OpenSearch exist?

Elastic moved Elasticsearch off the Apache 2.0 licence in 2021. AWS forked the last Apache-licensed version, and the project now sits under the Linux Foundation.

OpenSearch: Is OpenSearch compatible with Elasticsearch?

It was at the 7.10 fork point. Both have developed independently since, so compatibility weakens with every release and should be verified for the features you use.

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