Case Study · Data Analytics & Utilities

iSolarSight: High-Performance ETL for Smart Energy

Client ProfileIndia-Based Product Startup
(Energy & Utilities)
IndustryRenewable Energy
& Smart Cities
Service AreaBig Data Engineering
& ETL
Data Analytics & Utilities Case Study

We partnered with an analytics company focused on smarter digital operations for Energy, Utilities, and Smart Cities. To power their flagship product, iSolarSight™, we engineered a high-performance ETL solution capable of ingesting massive volumes of heterogeneous SCADA data into Cassandra for actionable plant performance insights.

The Research Challenge

The "Data Variety" Bottleneck: The client needed to support rich capabilities for asset owners while dealing with fragmented, inconsistent data.

Fragmented Sources

Data arrived from disparate SCADA systems and inverters.

Incompatible Formats

Files in Excel, CSV, JSON, and XML had to be unified.

Scalability Needs

Required to handle utility-scale and rooftop sites with huge volumes.

The Solution

ThoughtSpheres engineered an end-to-end Asset Measurement Data Load ETL job using a modern open-source stack. This high-velocity pipeline transforms raw data into intelligence through a structured workflow.

01
Ingestion

Modules extract data from file systems and RESTful services.

02
Parsing

Smart engine converts diverse formats (Excel, CSV, XML) into a generic JSON model.

03
Mapping

Automatic mapping of raw sensor tags to master data definitions in PostgreSQL.

04
Calculation

Applies domain logic to generate derived tags and new value-added metrics.

05
Loading

Formats final JSON into high-speed insert operations for Cassandra DB.

Technology Stack

The solution was built on a robust, open-source stack designed for high throughput and scalability.

OrchestrationApache NiFi
ScriptingPython
Master DBPostgreSQL
Big DataCassandra
FrontendAngular 6

The Impact

01
End-to-End Digitalization

Fully digitized plant operations from raw data to dashboards.

02
Scalability

Able to ingest multi-format data for any size of utility site.

03
Actionable Insights

High-quality, derived metrics empower asset owners to optimize performance.

Drowning in unstructured sensor data?

We build big data pipelines that turn noisy operational data into real-time, decision-ready intelligence.

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