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Solar Power Monitoring System — PV, Grid, and DG on One Dashboard

Measure Every Source. Prove Every Saving.

A solar monitoring system measures generation, grid import/export, and (optionally) diesel generator output across the same dashboard — letting facility owners verify solar performance, calculate true self-consumption, justify storage, and cross-check the net-metering bill. Tech OVN's Titan smart meter delivers bi-directional metering on every source with WiFi or Ethernet to the cloud.

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Titan smart energy meter for solar monitoring by Tech OVN

Why Inverter Monitoring Isn't Enough

Solar inverters report what the inverter sees: DC input, AC output, error codes. They don't see grid import, they don't see diesel runtime, and they don't see what the building actually consumes. That makes it impossible to answer the questions that matter most:

  • • What percentage of solar generation is being self-consumed (vs exported)?
  • • What is the blended cost of energy across solar, grid, and DG combined?
  • • How much grid dependency has solar actually displaced?
  • • Is a BESS justified — and what size?

A dedicated meter on every source — solar, grid, and DG — closes the gap. Titan provides bi-directional Class 0.5S measurement on all of them, with the same cloud dashboard rolling up the data into actionable comparisons.

Solar Power Monitoring System — What Titan Measures

Four data streams, one dashboard. A solar power monitoring system that also covers grid import/export and diesel generator output.

Solar Generation

kWh delivered to the building, peak generation, self-consumption ratio, daily and seasonal trends.

Grid Import & Export

Bi-directional metering with separate import and export registers, alongside the DISCOM net meter. Time-of-use registers for peak/off-peak tariffs.

Diesel Generator

Runtime hours, fuel cost (configurable), kWh delivered, and CO₂ emissions.

Building Load

Total consumption per phase, per circuit, per tenant — across the entire facility.

Renewable Comparison Engine

The platform's renewable comparison engine takes the per-source data from Titan and produces:

  • Source-wise kWh and cost — solar, grid, DG broken out month over month
  • Blended cost of energy — what you actually paid per kWh once all sources are factored in
  • Solar self-consumption % — how much PV generation stayed on-site
  • Grid dependency % — how much you still pull from the utility
  • DG runtime + fuel cost — diesel as a true line item
  • Source-mix charts — at-a-glance daily, monthly, and annual breakdowns

For BESS feasibility, the platform also runs load profile analysis, solar surplus windows, recommended capacity, and tariff sensitivity scenarios.

Read more about the renewable comparison engine →
Tech OVN Energy Intelligence Platform — solar, grid, DG, and BESS source-mix comparison with blended cost of energy

Use Cases

Five common scenarios from rooftop solar to multi-site portfolios.

Commercial Rooftop Solar

Verify EPC performance against PPA guarantees. Track solar self-consumption vs grid export over time. Monitor inverter health from the AC side.

Solar EPC Portfolios

Aggregate dashboards across multiple client sites. Defensible reporting on plant performance, with no dependence on a single inverter portal.

Industrial Facilities with DG Backup

Compare grid + solar + DG costs side by side. Identify when DG is being run uneconomically. Plan BESS to displace diesel.

Net-Metered Sites

Titan monitors alongside the DISCOM net meter — import and export registers and time-of-use tracking let you check the net-metering bill and see what it doesn't show. The billing net meter itself is the DISCOM's; for that role, see our utility smart and static meters.

Solar + BESS Sites

Track BESS charge/discharge cycles, calculate round-trip efficiency, and validate storage ROI against the original sizing assumptions.

Why Titan for Solar Monitoring

  • Bi-directional measurement — import and export on the same meter
  • Class 0.5S accuracy — designed to IEC 62053-22
  • WiFi or Ethernet to the cloud — no inverter-vendor portal lock-in
  • CO₂ on-device — per-source emission factors for ESG reporting
  • Multi-source comparison in the Energy Intelligence Platform

Full spec sheet on the Titan product page.

Frequently Asked Questions

Six common questions about solar monitoring, self-consumption, and BESS sizing.

A DER (Distributed Energy Resource) monitoring system measures every on-site energy source — solar PV, battery storage, diesel generators — plus grid import/export, from a single dashboard. It answers questions that per-inverter portals cannot: how much solar is self-consumed, how much is exported, what the blended cost of energy actually is, and whether a BESS is justified. Titan is a DER monitoring system built on Class 0.5S metering with bi-directional measurement on every source.
Inverters monitor themselves — DC input, AC output, error codes. They don't see grid import, they don't see DG runtime, and they don't measure self-consumption. Titan provides Class 0.5S measurement on every source so the comparison is defensible.
Install one Titan meter on the solar circuit (measuring generation) and one on the grid circuit (measuring bi-directional import/export). The platform calculates self-consumption automatically as (Solar Generation − Grid Export) / Solar Generation × 100%.
No — Titan monitors alongside the DISCOM net meter; it isn't the billing meter. Titan is bi-directional with separate import and export registers and time-of-use tracking, so you can cross-check the net-metering bill and see self-consumption, demand and plant performance. If you need the net meter itself, our utility smart and static meters are dual-purpose and support net metering (bi-directional, can measure solar) — use them where your DISCOM accepts them.
Titan logs the actual load profile and solar generation profile over weeks or months. The Energy Intelligence Platform then runs sizing scenarios — battery capacity, solar surplus windows, tariff sensitivity — using your real data instead of sales assumptions.
Yes. The platform supports portfolio-level views with drill-down to any individual site. Useful for solar EPCs managing client portfolios and large facility owners with multiple plants.
No. Titan is a metering and analytics layer — not a control system. It exports data to your SCADA or BMS via Modbus RTU/TCP if you want a unified operations view.
A behind-the-meter (BTM) solar monitoring system measures how a rooftop or captive solar plant interacts with the building or facility load — independent of the utility billing meter. It tells you, in real time, how much of your load is being met by solar versus how much is coming from the grid (and how much, if any, is being exported). It's the measurement layer that owners need to know whether their solar investment is performing.
A solar net meter is a utility billing meter installed by the DISCOM at the grid interconnection point — it's the meter the utility uses to calculate net energy import / export for billing. A behind-the-meter monitoring system is for the plant owner — it tracks generation, consumption, performance ratio, savings, and ESG metrics independently of the utility's billing process. Titan sits on the owner-facing monitoring side. For the net meter itself, our utility smart meter (IS 16444, BIS) and static meter (IS 13779, BIS) are dual-purpose: they support net metering and can measure solar — subject to your DISCOM's acceptance.
For C&I rooftop plants under 500 kW, net metering offsets imported units 1:1 with exported units, so exporting isn't a loss. But net metering settles energy (kWh or kVAh) — it doesn't address everything on the bill. Five things it leaves open: (1) maximum demand — your billed demand is set by your heaviest 15-minute interval, often in the evening when solar is gone, and net credits don't reduce it; (2) Time-of-Day netting — some states net import and export within each ToD slot, so solar-hour export offsets solar-hour import rather than peak-hour import, and the timing of your load matters; (3) year-end surplus — net export left over at the end of the settlement period is paid at the rate your SERC sets (typically the average power purchase cost), well below your retail tariff, so oversizing has limited value; (4) plant under-performance hidden by net credits — soiling, inverter derating, string faults; (5) ESG Scope 2 reporting that needs kWh-level attribution by source. Behind-the-meter measurement is what surfaces all five.
Yes for the core measurement. The meters do the primary generation, consumption and grid measurement on the AC side — independent of the inverter brand. Reading inverter data (string-level health and fault codes) over Modbus or SunSpec is optional and depends on the inverter exposing those registers; we check your inverter's register map before quoting it.
Carbon savings (tCO2 avoided) calculated using grid emission factors, monthly and annual self-consumption summaries, and audit-grade M&V data exportable for GRI / SBTi / BRSR reporting. The data is structured to support IPMVP-style M&V and GHG Protocol Scope 2 reporting; the report methodology is yours or your auditor's.
Yes — we work with EPCs as a channel partner for post-commissioning monitoring. EPCs can include the monitoring system in the BoQ, white-label the dashboard, or refer clients to Tech OVN directly. Talk to our team about EPC partner pricing.

Related Solutions & Products

Explore the monitoring stack that sits behind solar performance tracking.

Energy Monitoring System

Industrial and commercial energy monitoring — the same Titan platform, applied to building loads beyond solar.

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IoT Energy Meter

Cloud-connected Titan meters with WiFi and Ethernet — the IoT foundation of the solar monitoring system.

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Titan Smart Energy Meter

Class 0.5S bi-directional DIN rail meter — measurement on solar, grid, and diesel circuits.

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Utility Smart Meter (Net Metering)

Need the net meter itself? Our IS 16444 utility smart meter is bi-directional and supports net metering.

Learn More →

kVA to kW Converter

Translate inverter nameplate kVA to real kW output and current — useful when specifying solar sub-metering CTs.

Learn More →

Diesel Genset vs Grid Calculator

For sites combining solar with DG backup: compare the true per-kWh cost of each source.

Learn More →

Ready to prove your solar performance?

Talk to our team about multi-source monitoring for your rooftop, EPC portfolio, or BESS feasibility study.

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