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| SolarWall® (TSC) | |
| Area Used | 595m2 |
| Energy Saved | 99, 973kWh/year |
| Cost | £46, 775 |
| Total Energy Requirement Met | 11.38% |
| DSA Conclusion: "The installation of 595m2 of SolarWall® will provide 11.38% of the development’s total energy demand." | |
| Photovoltaics | |
| Area Used | 1172m2 |
| Energy Saved | 87, 900kWh/year |
| Cost | £1, 172, 000 |
| Total Energy Requirement Met | 10.01% |
| DSA Conclusion: "Installing 1172 m2 of solar PV panels is very cost prohibitive, and since other solutions are available, PV panels are not a financially viable solution." | |
| Solar Thermal (Water) Systems | |
| Area Used | 20m2 |
| Energy Saved | 12, 353kWh/year |
| Cost | Not Stipulated |
| Total Energy Requirement Met | 1.41% |
| DSA Conclusion: "This would only provide 1.41% of the total annual energy demand. A solar hot water heating system is therefore not a viable solution to singlehandedly meet the 10% threshold." | |
| Ground Source Heat Pump | |
| Area Used | Not Stipulated |
| Energy Saved | 96, 959kWh/year |
| Cost | £205, 000 |
| Total Energy Requirement Met | 11.04% |
| DSA Conclusion: "The installation of 9 bore holes will provide 11.04% of the total energy demand for this development. Provided the site is suitable, ground sourced heating is therefore a viable option." | |
| Wind Turbine | |
| Area Used | Not Stipulated |
| Energy Saved | 89, 102kWh/year |
| Cost | £138, 000 |
| Total Energy Requirement Met | 10.14% |
| DSA Conclusion: "Wind turbines can generate acoustic complaints from both the occupants and surrounding residential units" | |
| A 10% total renewable energy requirement met, complying to the Merton Rule with a 3 year expected payback | |
| To download the full report, click here | |
DSA Engineering were asked by a developer to prepare a report comparing various types of renewable technologies.
The study by the highly experienced and innovative consultant engineers examined the potential for onsite renewable energy generation on a site at Swavesy, South Cambridgeshire. They reviewed 5 technologies; photovoltaic’s, solar thermal, ground source heat pumps, wind turbines and SolarWall® for use on a proposed mixed-use development of approximately 13,583m2. The aim was to reach a renewable energy target of 10%.
The report summarises the work undertaken and concludes with specific recommendations based on the most appropriate and viable technologies to achieve the 10% sustainable energy target. It shows that the one technology stands out above the rest is SolarWall®.
Because of installation costs, equipment costs, and economy of scale, it is almost always more cost-effective to select a single system as opposed to combining several systems. The study concluded that only one system was economically viable and satisfies the 10% onsite renewable energy target for this development: SolarWall®.
Just 595m2 of SolarWall® will provide 11.38% of the development’s total energy demand, making it the most economically viable out of all the renewable solutions
To find out more about the findings of the report, select from one of the technologies above to see the summary results or click here to download the full report.
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