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Dunstanburgh Castle Hotel

Dunstanburgh Castle Hotel. Energy use and Greenhouse gas emissions. Overview. Energy use charts and key facts Suggestions for reducing fossil-fuel energy Possible publicity material. Energy use charts and key facts. Hotel energy use 2007-10.

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Dunstanburgh Castle Hotel

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  1. Dunstanburgh Castle Hotel Energy use and Greenhouse gas emissions

  2. Overview • Energy use charts and key facts • Suggestions for reducing fossil-fuel energy • Possible publicity material

  3. Energy use charts and key facts

  4. Hotel energy use 2007-10 Energy usage rose by 17% in 2010. However, degree days to base 15.5°C rose in the North East by 21%, which accounts for much of the rise.

  5. Energy use 2010 month-by-month

  6. Key facts – Energy use • Taking average figures from 2007 to 2010 109MWh/yr Electricity 35 MWh/yr Bottled gas 123 MWh/yr Oil 34.6 kwh/bed night 225 kwh/m2/year According to the Chartered Institute of Building and Structural Engineers (CIBSE) and the Carbon Trust, anything under 320kwh/m2/year is Good.

  7. Key facts – GHG emissions • Taking average figures from 2007 to 2010 58.4tCO2e/yr Electricity 7.4tCO2e/yr Bottled gas 30.3tCO2e/yr Oil Electricity is a larger share of CO2 emissions than kwh due to its higher carbon intensity.

  8. Key facts: electricity use • During the 10 months of opening, average electricity use is around 350kwh/day. This is roughly made up of the following components. *Baseload means electricity which is consumed all the time, e.g. fridges, freezers, overnight lighting etc.

  9. Suggestions for reducing fossil fuel use These are based on a very quick review, so may not be feasible – accuracy could also be improved.

  10. Suggestions • Turn the heating down during close season – Some heating is advisable, but current oil consumption in Dec and Jan is approximately equal to that during Feb and Nov. It should be safe to reduce heating by 60% without damage to the building.SAVING: 12MWh – 1200 litres of oil – 3.5% saving on total emissions. • Install solar thermal for water heating – it isn’t possible to clearly identify breakdown of water-heating, but CIBSE estimate that water heating is responsible for 10% of a hotel’s energy use. A typical panel installation saves 1200kwh/year. SAVING: 13MWh – v approx 1300 litres of oil or 3000kwh of electricity – approx 4% saving on emissions – this would perhaps require approx 10-12 solar thermal panels, each of 2m2 area. • Replace appliances with the most energy efficient as they wear out – Embodied emissions mean it is rarely worth disposing of old appliances until they are irreparable. But A++ or AAA appliances are typically 30-35% more efficient than existing A appliances, so replacement of all will lead to the following saving.SAVING: 8MWh of electricity – 4.5% saving on total emissions. • Reduce idle appliance time in the kitchen – although this is hard to absolutely confirm, the Watts-on records suggest that kitchen appliances are all turned on upon arrival rather than when needed. Keeping energy-intensive appliances switched off for a further 30 mins per day may be achievable.SAVING: 3.6MWh of electricity – 2% saving on total emissions.

  11. Publicity material Some material for a wall in the hotel

  12. In the last 4 years we have Insulated the hotel Installed a new high-efficiency oil-fired boiler. Installed rainwater harvesting to reduce our water use. Replaced all incandescent high-energy lighting with fluorescent low-energy lighting [More details on these?] In the next 4 years we will Install solar photovoltaic panels on the hotel roof. Buy the most energy efficient electrical appliances, as we replace them. Buy ultra-low energy LED bulbs as we replace fluorescent lighting. What we’ve done Over the period 2007-10, our energy usage has been 225kwh/m2 per year. This is rated Good under the Carbon Trust yardstick for small hotels. This is especially good since, unlike many hotels, we do all our laundry in-house.

  13. Our CO2 emissions 2007-10 15% 2010 was the coldest year since 1986. We hope to improve in 2011.

  14. 2010, month-by-month

  15. Or looked at another way…

  16. Suggestions for further work • Could seek carbon trust standard - need to • Provide an accurate footprint measurement including all required emission sources. • Demonstrate an absolute reduction of your footprint or equivalent relative efficiency improvement [this could be problematic] • Demonstrate good carbon management including carbon governance, accounting, reduction methods and targets. • £450 fee • 3-4 days work for me (say £200-£250 incl. work so far)

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