Tag: off grid

  • HPH152 : Should you consider the resale potential of your self build? – with Mike Coe

    HPH152 : Should you consider the resale potential of your self build? – with Mike Coe

    Mike Coe explains what he’s learned while trying to sell his energy-efficient home and how it has made him re-evaluate for his second self build project.

     

    laird_on_croft

    Interview with Mike Coe

    Back in 2011 Mike and his partner Lizzie moved into “The Autonomous House” – a self build project described as one of the UK’s most sustainable homes, which we featured in Episode 54. At the time they built it they were expecting to be living there for the forseeable future, but have recently made the decision to relocate to Scotland. Now that they’re looking to sell their house they’re discovering that finding a buyer for such a unique property is not without its challenges.

    cropthorne-house-by-road

    Visit Cropthorne Autonomous House as part of the Passivhaus Open Days.

    The lure of one more project is compelling!

    Mike has devoted a lot of time researching climate change, and his own feeling is that in the next few years the temperatures in the south of England will get far hotter. Approaching his 60th birthday he is also starting to get a sense of excitement at the prospect of taking on one more big project, so although it is with a great sense of reluctance to be leaving The Autonomous House, a move to the Isle of Skye and a new self build project is on the cards.

     

    Using a conventional estate agent has not found a purchaser for this unconventional house

    Despite having a couple of interested parties, using a traditional estate agent has not secured a buyer for The Autonomous House. Mike believes that it won’t be for another 15-20 years that people will really understand the value of a house like it, with many people being put off by a lack of understanding about some of the features, eg composting toilet, rainwater harvesting system etc.

    “So I think the attitude is changing but I think it’s going to be some time before we have the level of awareness that perhaps they do in Germany where there are a lot more low energy houses, a lot more Passivhauses, people understand them, they’re not afraid of them. ”

    With the conventional estate agent route not yielding any results, Mike and Lizzie paid to advertise on the Green Moves website, which by its nature attracts people who are genuinely motivated to buy a sustainable home. Through this they are optimistic that they have found a potential purchaser and are now in a chain waiting for them to sell their property.

    Despite the systems Mike has built into the house, he explains that it’s actually a very simple house to live in. It might be different to living in a conventional house, but is no more difficult. It doesn’t for example have central heating systems and boilers to worry about maintaining, or complicated electrical systems to understand. He thinks that anyone with a basic degree of DIY knowledge and experience would be able to maintain it without difficulty.

    Selling the house will come at a financial loss

    When Mike and Lizzie built The Autonomous House, their plan was for it to be their home for the forseeable future. They didn’t build it thinking about potential resale value. Perhaps if they had, Mike says they might have been able to fit a bigger house on the site or done other things a little differently, to create a larger resale value.

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    Housing prices in Worcestershire have remained fairly stagnant since 2007/2008 so they have also been hit by property not being a reliable investment over that time. Mike explains that the only way to not lose money on the property now would be to remain there for several more years and wait for property prices to catch up. Being reluctant to do that, they have decided to accept that they will lose money on the house. He is conscious that, while they intend their new project in Scotland to be their home for the forseeable future with low energy and off-grid features, he will be bearing in mind potential resale values and maybe being a little more conventional, just in case!

    top-of-cropthorne

    “So in some senses it’s going to be a little more conventional and I’m not going to do things like have a whole house basement in order to store rainwater, because it’s a very expensive thing to build. So I’m keeping a little bit more of an eye on those kind of costs and I’m compromising a little I suppose but not very much. I’m compromising a little with an eye on possible future sale.”

     

    The new challenge!

    While Mike and Lizzie were looking for potential houses to buy for when they first make the move to Scotland, they were introduced to a plot which they quickly realised was going to be better than anything else they were going to find. With a great deal of financial manoeuvring they were able to buy it and are now looking forward to the new challenge that awaits!

    The plot is on the edge of Portree, a principle town on the Isle of Skye, which although not large, does have a good number of facilities for its size. The land is a sloping site which will give them views across Portree Bay, will be close to south facing giving them the option of another solar heated design, and has very little likelihood of further development happening nearby. There is also a stream running down the site which may give Mike the opportunity to run a micro-hydro system which, while probably not justifiable in economic terms, is something he says he has always wanted to do.

    The site from above - on the left behind the trees is the roof of a 3 bedroom bungalow that was included in the package
    The site from above – on the left behind the trees is the roof of a 3 bedroom bungalow that was included in the package
    The site from below, looking up the hill
    The site from below, looking up the hill
    View from the croft, looking back towards the site and over Portree Bay
    View from the croft, looking back towards the site and over Portree Bay

     

    Find out more

    Read the blog about creating The Autonomous House

    Follow Mike Coe on Twitter

     

    Transcript

    Download a transcript of the interview with Mike Coe

     

    Passivhaus Goes Personal


    This is a video we have produced for the Passivhaus Trust which was recently launched at the Passivhaus Conference as part of a campaign aimed at self builders. If you’re a self builder and haven’t made up your mind yet whether Passivhaus is for you, this will provide you with all the clear information to help you with your decision.

     

    The Hub update

    Our second video from Buckinghamshire Passivhaus is now available for Hub members. This one is all about how it’s going to be built, with details of the PH15 system along with some of the designs, plus how it’s being positioned on the site.

    We also have our second progress call where Hub members can get together to discuss challenges or other aspects of their projects. The recording of the call is available for members to catch up with at any time.

    Our latest module in The Hub is all about reclaiming VAT to make sure you don’t miss out on that 20% benefit.

    In 4 weeks we will be increasing the price of Hub membership, but if you join now you will pay at a lock-in price for as long as you continue to renew. Check out www.houseplanninghelp.com/join to find out more!

     

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  • HPH098 : An Off-Grid, Earth-Sheltered Passivhaus– with Christina Snyder (Passive House)

    HPH098 : An Off-Grid, Earth-Sheltered Passivhaus– with Christina Snyder (Passive House)

    Architect, builder and Passivhaus Consultant, Christina Snyder shares the story of the experimental zero-energy Passivhaus self-build that she and her husband have undertaken in Michigan, and explains why they are in no rush to complete it.

     

    Interview with Christina Snyder

    While this is Christina’s first self-build, she has been involved in projects since childhood when she helped her father to make solar renovations on the family home. In high school she won a design competition for a solar house and, after graduation, began teaching students how to design zero-energy homes. After being beaten in a competition by a team specialising in Passivhaus, she decided to do the training and become a Passivhaus consultant.

    Photo by Jim Deigart
    Photo by Jim Deigart

    The House is on the ‘Bleeding’ Edge of Technology!

    The project is innovative and experimental in the features that it is bringing together into a single house:

    • It will be both Passivhaus and zero-energy
    • It will be powered with a nickel-iron battery system
    • It will use solar and wind power
    • The surplus energy from the solar hot water system in the summer will be stored to provide domestic hot water and heating through radiant floors in the winter
    • There will be a composting toilet
    • There will be grey water and rainwater storage

    Plans

    4 Years In, and Possibly Another 16 Remaining!

    With so many experimental ideas it is not something they would have wanted to try out on a client house. Christina and her husband however are happy to throw all the ideas together and take their time, possibly even over a couple of decades, to complete the house. They aim to do the project in phases with results being tweaked as they go.

     

    Good Solar Exposure was Fundamental to Finding the Right Plot

    Requiring sunshine from 9am to 3pm all year round in order for their energy needs to be met meant that they used satellite images and solar pathfinders to help locate suitable plots. Benefiting from the economic downturn they were able to source a rural plot from a farmer.

     

    Progress of the Build so Far

    The house has 3 storeys on the south elevation and 2 on the north, one of which is below ground level. Retaining the hole which was 14 feet below ground level on the north, and 3 feet below on the south, was particularly challenging throughout a very wet year.

    The construction below ground level uses 16inch thick structural insulated panels made from EPS beadboard and coated with glass fibre reinforced concrete. This is also the weather barrier, and on the inside acts as the air barrier. They selected this method as it provided the insulation levels required, would give the necessary strength and had less CO2 emissions than insulated concrete forms would have had. Spraying the concrete onto the Styrofoam walls was a gruelling process that needed several hours continuous spraying at a time to ensure the concrete didn’t set in the hose.

    Cleaning up after the first spraying of GFRC over the 12” insulated EPS foam floor with red radiant floor PEX tubing over the continuous structural basement foundation slab.
    Cleaning up after the first spraying of GFRC over the 12” insulated EPS foam floor with red radiant floor PEX tubing over the continuous structural basement foundation slab.

     

    Being largely self-taught, this method took a lot of experimentation and they’re still not in a position where they would use it on a client’s house.

    The wooden walls, made of I-joists, have been erected and filled with cellulose insulation, the roof is in place and all but 2 windows have been fitted.

    A mock-up of the 2x4 wall framing on the interior of the plywood air barrier (which has grey tape sealing cracks and fastener holes) shows how the electrical wiring can run in the thermal break in the wood sill plate to get by the picture window.
    A mock-up of the 2×4 wall framing on the interior of the plywood air barrier (which has grey tape sealing cracks and fastener holes) shows how the electrical wiring can run in the thermal break in the wood sill plate to get by the picture window.

     

    The build has been ongoing since 2011 and they hope to move in in around a year.

     

    Root Cellars Will Provide the Right Climate for Different Food Types

    There will be a total of 3 rooms that will each have different combinations of temperature and humidity to ensure that different foods are kept in the right conditions. Being below the frost line they should remain cool all year round.

    The challenges of the build have been testing on their relationship at times but Christina is confident they’ve got what it takes to see things through.

    Christina's-Passivhaus-windows-in

    Find Out More

    Find out more about Michigan’s first earth-sheltered Passivhaus

    Christina is Principal of Equilibrium Energy Spaces and member of CertiPHIers Cooperative

    Transcript

    Download a transcript of the interview with Christina Snyder

     

    Watch the Videos from Self Build Live

    Potton is currently building a new Passivhaus show home. And they are welcoming visitors to site near St Neots, UK, as part of Self Build Live.

    However, if you’re too far afield you can keep up with the progress on their blog as well as watch videos every step of the way.

    Video produced by Regen Media

     

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  • HPH061 : Should My House be Off-Grid?

    HPH061 : Should My House be Off-Grid?

    If the idea of going ‘off-grid’ excites you, then perhaps now is a great time to be doing it. We live in an era where the cost of items such as solar panels is continually dropping and this is juxtaposed with fossil fuel reserves that deplete day by day.

    While you may even be forced off-grid if you move to a remote location, does it make sense going off-grid if you have perfectly good access (for example, in a town or village)? And with different grids – transport, gas, water – which is the easiest to unplug from?!

    In this discussion (which was one of our Google+ Hangouts) we discuss some of the issues surrounding going off-grid.

    The Panel

    Mike Coe, who lives in the Cropthorne Autonomous House (and was our guest in episode 54).

    Paul Scheckel, author of The Home Energy Diet and The Homeowner’s Energy Handbook.

    Ken Silverstein, an business journalist who specialises in writing about energy

    It is Best to be Off-Grid in the Broadest Sense

    Paul believes that the best way of being off-grid is to be off multiple grids, such as the transportation grid, the propane grid and the fossil fuel grid, not just the electrical power grid.

    There are Incentives for Those Going Off-Grid, While Those Staying on are Penalised

    There is a growing trend in the US towards homeowners installing solar panels, enticed by government incentives, attractive financing packages and dramatically falling costs of the panels themselves. Ken explains that this is controversial because it is at the expense of those remaining on the grid who are left picking up a greater share of the bill for its support.

    People Choose to go Off-Grid For a Variety of Reasons

    Whilst going off-grid can make sound ideological sense it doesn’t always make financial, engineering or environmental sense when extra batteries and electronics are factored in. In some cases the lower cost of PV cells can be an attractive proposition while for others living in remote locations it can be a decision made out of necessity.

    The Oil Industry Fights Back

    Mike refers to a recent article talking about some US oil magnates and politicians attempting to put a tax on those who have photovoltaic installations. They are justifying it with the excuse that such owners are destabilising the electricity grid and should be made to pay for it.

    There are Additional Energy Demands to Consider

    Mike talks about his own property where, for environmental reasons, he has tried to reduce energy demands further. He has achieved this by harvesting rainwater, treating it to provide the water supply, and using a dry composting toilet system. And all this without expending additional energy.

    There can be a Contradiction in Trying to be Self-Sufficient

    Paul discovered a drawback in trying to be self-sufficient and using solar energy when he was landed with a large propane gas bill. The resultant measures he took to remove himself from the propane grid are documented in his book and included making his own backyard bio-gas, which can be used to run a car or heat water.

    Don’t Go Off-Grid if You’re Already on it

    With the sheer volume of equipment required for battery storage, in Paul’s opinion it doesn’t make sense to go off-grid if you’re already on it. This would therefore apply to people living in densely populated areas that just wouldn’t have the space for it to be stored.

    Paul resorts to a backup generator for the times when the batteries are drained due to a lack of sun or wind.

    Developments are Being Made into Advancing Battery Technology

    Advances in battery systems have been brought about with the growing popularity of portable computers, mobile phones and electric cars. With ever greater investment of effort and finance the future is likely to produce far smaller, more efficient and cheaper solutions.

    “Efficiency First, Renewables Next”

    Paul’s mantra is “efficiency first, renewables next”. The ideal scenario is to have an efficient house that doesn’t have as great a need for energy. Once that has been achieved it is a case of working out your renewables based on what’s available, how much it costs, your goals and values, and your desired comfort level.

    There are Added Benefits of Being Off-Grid

    Being off-grid means you can be well placed if there were dramatic changes in climate, technology or fuel supplies in the future.

    Whilst a premium can be paid at the outset, the reduction in ongoing costs can be extremely attractive, with Mike quoting his savings of around £3000 per year, when compared to an equivalent typical British house.

    Somebody Needs to Pay to Maintain the Grid

    Maintenance of the grid is extremely costly and with more people going off-grid there are fewer remaining on who will inevitably be left to pay a greater share.

    Ken sees the need for some sort of reconciliation between the utility companies and those who go off-grid because the need for the grid to remain durable and reliable is so vital.

    Energy Companies are Being Forced into a Strange Situation

    A situation exists in the UK, for example, where government legislation dictates that the utility companies must offer to subsidise energy saving measures to households, which in turn will lead to less energy consumption with resultant lower revenues.

    There is a Risk of the UK Grid Collapsing

    Mike sees a future where the government will bring in massive diesel generators to cover the shortfall in supply of electricity driven by greater demand. At times of exceptional drain on the system caused by unusual weather patterns, there is a risk of the UK grid collapsing. If that were to happen there would be plenty of smug off-grid home owners sitting happy about the decision they made!

    Watch the Google+ Hangout


    Do you fancy getting involved in a future discussion? Well, check out the schedule.

    Transcript

    Download a transcript of the debate.

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  • Google+ Hangout Schedule for 2014

    Our debate sessions are back for 2014 and we want YOU to be part of them.

    google plus hangout

    We experimented with Google+ Hangouts last year and it turned out to be a great way to discuss some of the issues surrounding building a house or renovating an existing property. It was also an opportunity to see how approaches vary around the world and to share the best information.

    Here’s an example of what it looks like (in case you’re not familiar with the concept of Google+ Hangouts): 

     

    Topics for 2014

    1. What makes an aesthetically beautiful house? (Saturday, February 22 at 12.30pm GMT)

    2. Why are more people not retrofitting (or weatherizing) their homes? (Friday, March 14 at 8.00pm GMT)

    3. Getting value for money when buying land (Wednesday, April 2 at 8.00pm GMT+1)

    4. Should my house be off-grid? (Saturday, April 26 at 5.00pm GMT+1)

    5. Passivhaus principles or Passivhaus standard? (Friday, May 23 at 8.00pm GMT+1)

    6. Getting a house through planning (Monday, June 30 at 8.00pm GMT+1)

    7. Is the cohousing movement significant to self-builders? (Saturday, July 26 at 1.00pm GMT+1)

    8. How is the internet changing house building? (Wednesday, August 20 at 8.00pm GMT+1)

    9. How can you stick to your budget? (Sunday, September 28 at 7.00pm GMT+1)

    10. Uniting the team on your build (Monday, October 20 at 8.30pm GMT+1)

    11. Do I need renewables on my project? (Saturday, November 15 at 12.30pm GMT)

    12. Self build advice from those that have been there done it (Friday, December 5 at 8.00pm GMT)

     

    Although we’re booking some of the guests for each Google+ Hangout, we will leave the other half open to any of the House Planning Help community. On the whole we’ll also aim to have an even mix of a couple of self-builders and a couple of construction industry professionals.

     

    You Need

    • A computer with a webcam and access to the internet (preferably a high speed or fibre connection).
    • To have a Google+ account (but this only takes a few minutes to set up if you don’t have one).
    • Opinions! You don’t have to be an expert but you do have to be passionate about building a house (even if you are just beginning your journey).

    Ideally you will also have an external mic to plug into your computer so the sound quality is as good as possible. We recommend the ATR2100 but the price does really vary according to which country you’re in.

     

    Get Involved

    If you would like to take part, please email us stating which event you would like to attend.

    While we can’t guarantee that we can include you on a specific hangout, hopefully we can accommodate you in a future event.