An energy technology provider, SolarEdge, announced that its DC-optimized solar solution has been chosen to supply clean, renewable energy for 11 schools in Coventry and South Gloucestershire.
Funded by grants from the Public Sector Decarbonization Scheme, the rooftop PV systems are forecast to produce combined annual energy savings of more than £194,000 and reduce carbon emissions by 298 tonnes.
The installations were completed in separate projects by Ineco Energy as part of wide-sweeping initiatives by Coventry and South Gloucestershire Councils to improve the energy efficiency of their public buildings.
SolarEdge DC-optimized system
Ineco Energy chose a SolarEdge DC-optimized system to meet the councils’ requirements for maximum energy generation, enhanced safety, and – crucially – to ensure the a low possible operation and maintenance (O&M) costs over the lifetime of the systems.
“There are several reasons why we always recommend SolarEdge – from its ability to maximize energy generation to its suite of inbuilt safety features.”
“However, it was SolarEdge’s real-time monitoring platform and long warranties that sealed the deal as far as both councils were concerned,” comments Angus Rose, Director at Ineco Energy.
Maintenance cost
The visibility provided by the SolarEdge monitoring platform will play a crucial role to minimize cost
“The majority of solar installations on schools are grant funded, which means individual schools may or may not have money for maintenance. The visibility provided by the SolarEdge monitoring platform will play a crucial role in helping to keep these costs to a minimum.”
“Added to this, the long warranties offered on both SolarEdge inverters and power optimizers provide further peace of mind by ensuring these installs will perform at optimum capacity for far longer than traditional string inverter systems,” Rose adds.
Power optimizers attached to solar modules
In a SolarEdge system, power optimizers are attached to solar modules to track the performance of each module – or pair of modules – in real-time, and to allow each to work at its own maximum power point.
In the event of a problem, an automatic alert is sent to the maintenance team, identifying the exact unit at fault. This means problems can be remedied rapidly, saving both time and money.
Further, it ensures that any energy production losses resulting from system underperformance are kept to a minimum. “This is in stark contrast to traditional string inverter systems, where problems can go unchecked for weeks or even months,” says Rose.
Synergy technology
Synergy is a modular system that splits the functionality of traditional large-scale inverters into three smaller units
With just a six-week window during the summer holidays to complete all 11 installs, Ineco opted to use SolarEdge’s Three Phase Inverters with Synergy technology at several of the schools.
Synergy is a modular system that splits the functionality of traditional large-scale inverters into three smaller, lightweight units, enabling rapid and cost-effective installation.
Managing export limitations
The Synergy series also provides an easy way to manage export limitations in line with G100 regulations, enabling Ineco to overcome local grid constraints.
In addition, Synergy inverters can be oversized by up to 150%. This increases energy production from solar arrays without having to add additional inverters, helping to reduce costs.
It will also ensure the PV systems are large enough to cope with what Rose believes will be an inevitable increase in demand for electricity due to the electrification of heat and transport.
Future-proofing the solar installations
Many councils around the UK is already looking at ways it can further improve the energy efficiency
“Typical of many councils around the UK, Coventry Council is already looking at ways it can further improve the energy efficiency of its school buildings.”
“For example, by introducing heat pumps and even EV charging facilities on site. However, while this will reduce gas consumption, it will increase the demand for electricity.”
“By using SolarEdge’s Synergy inverters, we have effectively ‘future-proofed’ the solar installations at the Coventry and South Gloucestershire schools by ensuring they have the capacity to grow in line with changing energy demand,” explains Rose.
Teaching students about environment protection
In addition to working with Coventry and South Gloucestershire councils to improve the energy efficiency of their school buildings, Ineco Energy will use the SolarEdge platform to teach the students about the importance of protecting the environment.
It has designed a sustainability ‘toolkit’ which will be supplied to teachers and school environmental clubs free of charge.
Toolkit for students
“It is children who are going to be most impacted by the environmental crisis we’re facing, and so it’s essential that we educate them about the importance of using energy more efficiently,” says Rose.
“Our toolkit has been designed to provide teachers with everything they need to engage students on this important topic. This includes information on the SolarEdge monitoring platform presented in an age-appropriate way for primary school children.”
“For example, ‘the solar energy generated by your school is equivalent to X number of trees planted each year’.”
“In this way we hope to influence more conversations around sustainability. Ultimately, we hope the children will take these messages home with them, helping to encourage greater energy-efficient habits in the wider community.”