Solar 101

3.1.3 Balance of System (BOS) and Monitoring

The BOS includes all the additional components that support system operation, safety, monitoring, and data collection. While these don’t generate power, they’re essential to a functional and code-compliant installation.

Common BOS Components #

ComponentFunction
String WiringConnects solar panels together in a “string” to deliver combined power to the inverter
Combiner Boxes / DisconnectsAllow multiple strings to safely merge and provide shut-off access for maintenance or emergency
Monitoring MetersTrack system performance, energy production (kWh), and system status; can include internet-based dashboards
Bidirectional Utility MetersMeasure both energy drawn from and sent back to the grid for net metering
Weather StationsCollect data on solar irradiation, wind speed, and panel temperature to compare actual vs. expected performance
Panelboards / TransformersRoute power into your building’s electrical system or utility connection

While BOS materials represent a smaller portion of the total system cost, they are critical for safety, optimization, and compliance.

System Monitoring: Your Solar Dashboard #

Modern commercial solar systems include real-time monitoring platforms that:

  • Measure solar energy output
  • Track system uptime and fault codes
  • Help you verify utility bill savings
  • Provide alerts for service or underperformance

Melink Solar includes monitoring in all system designs, giving you and your team full visibility into system performance from day one.

How do you track what your solar system is doing day-to-day?
Once your solar system is installed, it doesn’t just generate energy silently in the background – you can (and should) monitor its performance in real time. This is where your solar monitoring platform comes in.

A monitoring system is essentially your dashboard – a digital interface that gives you full visibility into how your system is performing. From energy production to equipment health, it provides the data you need to validate savings, spot issues, and stay informed.

What Does a Monitoring Platform Do?
Modern commercial monitoring platforms can:

  • Track energy production in real time (kWh/day, month, year, lifetime)
  • Detect faults or outages, showing which inverter or string is underperforming
  • Verify energy savings compared to your utility usage and rates
  • Send alerts via email or SMS if the system underperforms or fails
  • Compare performance to weather data to validate output expectations
  • Provide reports for sustainability, or internal energy management dashboards

Melink Solar includes monitoring in all system designs. We use reputable, user-friendly platforms that give your facility or energy team access to performance data from day one, via web or mobile app.

Why Monitoring Matters
Monitoring isn’t just a convenience, it’s a core part of system operations and financial performance.

  • You may not know if your system is underperforming
  • Faults (like a tripped inverter or shading issue) can go unnoticed for weeks or months
  • You’re unable to tie solar production back to utility bill reductions
  • You miss out on valuable data for Sustainability, LEED, or carbon reduction reporting
  • You know exactly how your system is performing at all times
  • You can confidently report ROI to stakeholders or board members
  • You’re empowered to act quickly if something needs servicing
  • You gain historical insight into performance year-over-year

Integration Options
Some systems also integrate monitoring data with:

  • Building Management Systems (BMS)
  • Energy Management Software (EMS)
  • EV charging stations or battery systems
  • Corporate sustainability dashboards

These integrations help consolidate data and make solar a seamless part of your broader energy and operations strategy.

Melink Solar also offers system performance checkups and remote diagnostics support as part of long-term operations and maintenance (O&M) packages.


Want to understand how monitoring data connects to billing and energy use?
Jump to Section 2.6: Reading Your Electric Bill or Section 4.4: Levelized Cost of Energy (LCOE) to see how production and savings align.

Curious about the lifespan and warranty coverage for inverters?
Jump to Section 3.2: How Long Will My Solar Equipment Last, and What Do Warranties Cover?