The Golden Rules for energy efficiency and renewable energy
Follow the seven golden rules to successfully integrate sustainable energy in new development:
- Start to plan at the outset how you will address these requirements. Factors such as site layout, building design and orientation all impact on energy efficiency and generating renewable energy. If these are addressed early on, there will be a wider range of options that are viable and the solution is likely to be more cost effective.
- Aim to achieve the highest possible standards of energy efficiency. The greater the energy efficiency, the lower the energy consumption. This will reduce the target level of renewable energy that will need to be generated within the development.
- Think carefully about how energy will be consumed. For example, a development of one and two-bed apartments will have a very different pattern of hot water consumption than a sheltered housing development, and solar hot water heating may not be the most effective means of generating renewable energy in both cases. This is because the quantity of energy generated by a solar hot water panel may fall short of the amount claimed by its suppliers if the occupiers of a development do not consume hot water at a rate equivalent to its production.
- One size does not fit all. Just as with many other aspects of Planning, every development will bring its own circumstances. For example, the solar resource (amount of sunlight available to generate renewable energy) will differ from site to site depending on overshadowing by other buildings and trees.
- Seek advice from energy experts. Modelling the energy consumption of a development and designing to achieve high energy efficiency and integrated renewable energy generation requires particular skills. Early involvement of the right expertise can help to achieve a successful solution and avoid delays during Planning. Advice for house builders is provided by the Energy Saving Trust and for commercial development by the Carbon Trust.
- An energy efficient development is not a 'niche' development. Whilst some examples of energy efficient development are conspicuous by their leading edge design, very high standards can be achieved in more 'conventional-looking' developments. Energy efficiency and renewable energy generation does not need to be at the expense of quality architecture. Many measures (such as wide cavities, insulation, ground source heat pumps) have no visual impact. New products such as solar tiles are also becoming available that have very low visual impact.
- Do not always assume energy efficiency and renewable energy are very costly. Not all energy efficiency measures carry a net cost. For example, designing to capture passive solar energy. The growth in the market for high specification materials and micro renewable energy and higher volumes of production means increasingly competetive prices. In addition, as energy prices rise and environmental awareness increases, consumer demand for energy efficient homes can be reflected in the marketing of new development. Grants and other finacial incentives (such as enhanced capital allowances) can also reduce the net cost.
