Solar energy on site offers businesses a powerful way to generate clean electricity directly where it’s needed, boosting resilience and reducing costs. This guide explains how to assess site readiness, explore microgrid solutions, and leverage energy management systems (EMS) to optimise performance— even in space-limited or complex environments. Learn practical steps to turn your site into a smart energy producer.

Transform your site with solar energy on site – Find out how

Unlock the full value of solar energy on site — even in complex or space-limited settings

Solar Energy on site of a building - Plexar Energy

Why solar energy on site is gaining momentum

With soaring energy prices, increasing climate commitments, and pressure to improve operational resilience, businesses are actively exploring ways to secure their energy future. Among the most promising paths is solar energy on site is a solution that delivers clean electricity directly where it’s needed.

Unlike large-scale solar farms or power purchase agreements tied to external infrastructure, solar energy on site offers independence, transparency, and efficiency. When paired with smart technologies like microgrids and Energy Management Systems (EMS), it transforms how industrial and commercial facilities manage power: From reactive consumers to proactive energy operators.

But not every site is automatically suitable. Understanding your location’s solar potential and infrastructure constraints is essential before jumping into installation.

First things first: What defines a solar-ready site?

Many businesses assume that installing solar panels is just a matter of placing them on the roof. In reality, site readiness involves several physical, technical, and operational factors. These must be assessed early in the planning process to ensure that your investment in solar energy on site pays off long-term.

1. Available surface area

The more available space you have, the more capacity you can install. But it’s not just about quantity; It’s also about quality. Roofs must have structural integrity, minimal shading, and the right orientation to maximise solar yield.

For ground-mounted systems, land use regulations, soil stability, and access for maintenance also come into play.

2. Energy consumption profile

Do you consume most of your electricity during daylight hours? If so, solar can directly offset your load. But if your usage peaks in the evening or fluctuates heavily, pairing solar with storage and EMS is necessary. 

It is difficult to look into the future and plan your future energy consumption by adding a Plexar microgrid you get storage and EMS, which future proofs your energy profile. 

3. Grid connection and flexibility

Some facilities operate in areas with weak or congested grid infrastructure. Others may face export limitations or unreliable service. These factors influence whether your system should be grid-tied, hybrid, or islanded — and whether a microgrid is the right option.

4. Regulatory and permitting landscape

Building codes, grid interconnection rules, and renewable energy incentives vary by region. Some sites may benefit from feed-in tariffs or tax deductions; others may be restricted in what they can install. Working with a provider that understands local frameworks is essential.

At Plexar, we would be delighted to discuss your options. If you want to know more on how a Plexar solution can benefit your business and operations, reach out and we will be pleased to discuss how our solution can benefit you. 

Space requirements for solar energy on site

How microgrids expand what's possible with solar

If your site has constraints, space limitations, uneven load profiles, or a need for backup power — a microgrid can turn a marginal solar opportunity into a strategic energy solution

What is a microgrid?

A microgrid is a localized energy system that can operate independently or in coordination with the main grid. It typically includes:

The beauty of a microgrid lies in its flexibility: It allows you to prioritise energy on site, while intelligently managing storage, consumption, and even energy sales.

Three key benefits for your site

Microgrids enable you to store excess daytime solar and use it during peak pricing hours or overnight. This flattens demand curves and reduces dependency on expensive grid power.

Sites with critical operations — like data centers, ports, or industrial facilities—benefit from uninterrupted power, even during blackouts or supply interruptions.

Our microgrid solution is designed to be scalable to follow future demand patterns, as electrification rises. It can be tailored to your current needs and expanded over time. This reduces upfront risk and helps align energy planning with business growth.

Why EMS makes solar energy on site truly intelligent

One of the biggest leaps in recent energy innovation is the Energy Management System (EMS) — A digital brain that transforms solar and microgrid infrastructure into an intelligent, responsive power network.

An EMS collects real-time data from across your system: production levels, demand spikes, battery status, and even market electricity prices. It then uses algorithms to make dynamic decisions that improve efficiency and lower costs.

Benefits of pairing EMS with your microgrid

This level of intelligence ensures that your investment in solar energy on site delivers maximum ROI — Not just technically, but financially.

What Is an Energy Management System

Common challenges — And how to overcome them

Every project has its hurdles. The key is to anticipate and plan for them.
How much area is needed for Solar
Even limited space can work with high-efficiency panels and vertical installation options. Supplement with off-site solar and EMS to balance demand.

Planning, purchasing and installing of solar pv and renewable energy gernerating assets can be costly, at Plexar we offer and  end-to-end solution from development to installment including financing. Contact Plexar to learn how we can help you

Ensuring a smoothly running energy load is not necessarily plug-and-play, but with a Plexar solution you’re covered by professionals with extensive knowledge on energy infrastructure and how to optimise your energy.

Final thoughts: Turning your energy from cost to asset

The shift to solar energy on site is more than just a sustainability move — It’s a smart business decision. With the right setup, your facility can stop renting unstable, high-cost grid energy and start generating your own power; Efficiently, intelligently, and reliably.

Microgrids, EMS, and modern solar technologies allow even challenging sites to participate in this transition. And with scalable, finance-friendly models, there’s no reason to wait.

If you’re asking, “Is my site ready?” The real question might be, “How soon can we get started?”

FAQ

A site audit evaluates factors like available space, energy consumption patterns, grid connection, and local regulations to determine if solar energy can be implemented effectively. 

A microgrid is a localised energy system that includes generating assets such as solar panels and/or wind turbines, battery storage, and control systems (EMS). it can operate in island mode – independently from the grid, and it optimises solar energy usage by managing storage and consumption with real time calculation and data.

EMS monitors and optimises energy production and consumption in real time. it prioritises self-consumption when relevant, manages battery charging and discharging, and helps reduce costs by avoiding peak tariffs.

High-efficiency panels and vertical installations maximise areal constraints, our financing option can reduce initial investment costs.

Yes, with a microgrid and battery storage, your facility can maintain power during grid outages, ensuring resilient operations on site.

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