There are two things specifically that I'm really interested in finding.
1) Finding a solution to provide hot water.
2) Finding a solution to provide space heating.
With the price of oil going crazy, I like the idea of a solar boiler of some sort to supplement (and hopefully replace in the summer) oil. It really irritates me when I hear my furnace come on in July and August to heat water.
Space heating is a little trickier and, from what I've been seeing and reading, a lot more expensive. I have hotwater baseboard. All of the solutions for solar space heating are for radiant in floor heating. If forced, I could go that way as my basement is unfinished and there is access to the underside of the subfloor (I guess procrastination in this case pays off).
CMHC indicates that the cost of a radiant systems is somewhere round $600-800/100 sq ft. That would be roughly $7000-9000.
I did find a company out of Connecticut, Apricus, that has a heat dissipator that looks like it may have interesting possibilities if it can be hooked in conjuction with a solar boiler of some sort. The closest Apricus dealer, Generation PV, is in Ontario. I've made contact with them to get more information about there products and if it sounds good I'll check them out with the local BBB and see what other history I can get on the company.
5/1/2008 - Correction
The Apricus heat dissipator is not a space heater, it is designed to eliminate excess heat from a solar water heating system during the summer months.
Wednesday, April 30, 2008
EnCom
Found another company that sells solar and wind energy systems, EnCom. There solar water heating solution involves panels with evacuated tubes that heat fluid (i.e. glycol) to heat water. The vacuum results in lower heat loss and claim to perform better in colder weather than solar thermal collectors. In warmer climates or hot weather they can also overheat water and require a different design that those with thermal collectors.
These may be a viable option. From I've been reading online, the solar thermal collectors can provide 90-100% of hot water requirements in the summer but only 10-20% in the winter.
There's no claim as to performce on EnCom's website.
I checked the company out at the NS Registry of Joint Stocks to see how long they've been in business, about 3 years. I've always been a little leary about companies that have not been around for very long, particularly with there after sales service but it's worth a phone call.
These may be a viable option. From I've been reading online, the solar thermal collectors can provide 90-100% of hot water requirements in the summer but only 10-20% in the winter.
There's no claim as to performce on EnCom's website.
I checked the company out at the NS Registry of Joint Stocks to see how long they've been in business, about 3 years. I've always been a little leary about companies that have not been around for very long, particularly with there after sales service but it's worth a phone call.
Monday, April 28, 2008
Great book on alternative energy
I just finished reading "Power with Nature" by Rex Ewing. It goes over wind, solar, geo-thermal and micro hydro systems, components (batteries, charge controllers, PV panels, invertors, wind turbines etc.) and what to consider when sizing and selecting your system.
From the reviews on Amazon, not everyone shares my opinion, but I thought it was a very informative read.
From the reviews on Amazon, not everyone shares my opinion, but I thought it was a very informative read.
Sunday, April 27, 2008
Ethanol as a fuel source
Ethanol seems to be getting a fair bit of attention lately as a potential replacement for gasoline. I seem to recall, from more than one documentary or news story that ethanol is not as efficient a fuel as gasoline but it is more expensive and requires more energy in it's production.
Personally, I don't believe there will be any one "magic bullet" in terms of an energy source as a replacement for oil that will be commercially viable in the next 20 years. There will be a period of weaning off where a multitude of energy sources will be made commercially available and then a period of consolidation but it will take 50 years or more.
I equate to the Betamax or VHS "war" of the 70's and early 80's both of which were eventually replaced by laser tecnology.
Green With Envy: Food prices highlight need for alternative energy
By Ashley Luthern
In the United States, about two-thirds of oil used goes toward the transportation sector, but about 25 percent of that goes toward transportation that isn't the cars we drive domestically to get around town, according to the Energy ...
The Post :: All Stories - http://www.thepost.ohiou.edu/
Energy Audit and solar energy rebates
I've applied to have an energy audit done through Clean Nova Scotia. The cost is $150 and is a requirement for being eligible for the government rebate programs for improving the energy efficiency of your home.
The province of Nova Scotia through Conserve Nova Scotia of also offers a 15% rebate for solar air heating and solar hot water systems, both to a maximum rebate of $20,000.
That would be roughly $450 towards the purchase and installation of a Cansolair panel or roughly $700 towards the purchase and installation of a solar boiler (net out of pocket investment would be $7,600).
The estimated payback, based on what I've read on the internet would be roughly 6 years.
The province of Nova Scotia through Conserve Nova Scotia of also offers a 15% rebate for solar air heating and solar hot water systems, both to a maximum rebate of $20,000.
That would be roughly $450 towards the purchase and installation of a Cansolair panel or roughly $700 towards the purchase and installation of a solar boiler (net out of pocket investment would be $7,600).
The estimated payback, based on what I've read on the internet would be roughly 6 years.
Home energy options
I did a calculation recently about how much I spend to heat my home and hot water (using oil) and for myself and my wife to get to work and I estimate the bill to be roughly $6,500 annually. A figure that has doubled in the last few years.
With that kind of money, we don't have a choice but to consider alternative means of energy. But that's only half of it, for the energy that is consumed, we have to make sure it's used in the most efficient means possible.
All of the internal and external lighting as been switched over to compact flourescents. CF's have been getting a fair bit of attention lately as they contain mercury and have to be disposed of accordingly but they do last for years. In addition, digital thermostats control the temperature in every zone of the house and are set to drop the temperature overnight and during the week while we're at work. Additional insulation will be the next item on the list.
My personal preference is solar energy although I'll admit I have not given wind it's fair shake. Luckily, the front of our house is a southern exposure (south south east actually). On a sunny day the house can approach 78-80 degrees in some rooms but the air circulation isn't that great, rooms on the other side stay at a cool 67-70. We also live in an area that get's it's fair share of wind on a regular basis and have enough land to put in a wind turbine.
A few produts that I'm looking at right now are:
1) Photovoltaic shingle by Uni-Solar, given that I'm going to have my roof done either this year or next - why not.
2) Solar Boiler, a local company, Thermo Dynamics, has one but I find it a little pricy.
3) Radiant in floor heat.
4) Woodstove (never said I was going green)
We currently have hot water baseboard heat and I've read articles that using solar to heat water to be incorporated into a baseboard heating system would not work as the water temperature would not be high enough. I'm not sure I get that; converting to radiant is pretty expensive and if water can be heated to a temperature to supply up to 2/3 of a homes hot water needs then why couldn't it be pre-heated to circulate through a closed system with oil as a supplementary source if needed? No one I've asked has been either able or willing to answer that question.
For the PV system, what what I'm looking for is a system that at the very least can power the my furnace (heat and hot water) water pump, selected lighting, fridge during an emergency but is scalable so that I can add additional PV units to it.
For the gas, other than carpooling, driving a more energy efficient vehicle (I drive a Corolla) there's not much that can be done. I've got a few years left in the one and I have, for my next one I'm thinking a Prius.
With that kind of money, we don't have a choice but to consider alternative means of energy. But that's only half of it, for the energy that is consumed, we have to make sure it's used in the most efficient means possible.
All of the internal and external lighting as been switched over to compact flourescents. CF's have been getting a fair bit of attention lately as they contain mercury and have to be disposed of accordingly but they do last for years. In addition, digital thermostats control the temperature in every zone of the house and are set to drop the temperature overnight and during the week while we're at work. Additional insulation will be the next item on the list.
My personal preference is solar energy although I'll admit I have not given wind it's fair shake. Luckily, the front of our house is a southern exposure (south south east actually). On a sunny day the house can approach 78-80 degrees in some rooms but the air circulation isn't that great, rooms on the other side stay at a cool 67-70. We also live in an area that get's it's fair share of wind on a regular basis and have enough land to put in a wind turbine.
A few produts that I'm looking at right now are:
1) Photovoltaic shingle by Uni-Solar, given that I'm going to have my roof done either this year or next - why not.
2) Solar Boiler, a local company, Thermo Dynamics, has one but I find it a little pricy.
3) Radiant in floor heat.
4) Woodstove (never said I was going green)
We currently have hot water baseboard heat and I've read articles that using solar to heat water to be incorporated into a baseboard heating system would not work as the water temperature would not be high enough. I'm not sure I get that; converting to radiant is pretty expensive and if water can be heated to a temperature to supply up to 2/3 of a homes hot water needs then why couldn't it be pre-heated to circulate through a closed system with oil as a supplementary source if needed? No one I've asked has been either able or willing to answer that question.
For the PV system, what what I'm looking for is a system that at the very least can power the my furnace (heat and hot water) water pump, selected lighting, fridge during an emergency but is scalable so that I can add additional PV units to it.
For the gas, other than carpooling, driving a more energy efficient vehicle (I drive a Corolla) there's not much that can be done. I've got a few years left in the one and I have, for my next one I'm thinking a Prius.
Saturday, April 26, 2008
Make your home more energy efficient
How to make your home more energy-efficient in ten easy steps
Times Online - UK
The advice line (0800 512012) allows anyone in England to get free, tailored advice from the Energy Saving Trust on how to reduce their carbon footprint. ...
See all stories on this topic
Khelil Says OPEC Won't Boost Output Amid Record Oil (Update1)
Bloomberg - USA
Venezuela, the largest crude-oil producer in Latin America, doesn't expect the price of oil to drop below $90 a barrel any time soon, Energy and Oil ...
See all stories on this topic
Energy News - April 26, 2008
Lautenberg: Pressure Bush, GOP to change energy policy
The Associated Press -
WASHINGTON (AP) — The public should pressure President Bush and his Republican allies in Congress to change energy policies that have led to record gasoline ...
See all stories on this topic
Revive nuclear energy program
Inquirer.net - Philippines
By FG Delfin Jr. NOW IS THE TIME TO REVIVE THE COUNTRY'S nuclear energy program. In the face of oil prices nearing $120/barrel, the demand to reduce ...
See all stories on this topic
Alma energy park backers promise a new kind of coal plant
MLive.com - MI,USA
by Paul Wyche The Saginaw News That's the mantra of alternative energy entrepreneurs vying for customers in Michigan as lawmakers mull legislation that ...
See all stories on this topic
Why energy must be our top priority
Belfast Telegraph - United Kingdom
There is no doubt that climate change and energy supply are two of the greatest dangers facing humanity. Experts around the world are screaming stark ...
See all stories on this topic
Cansolair - Solar Max
There's a company in Newfoundland, Canada by the name of Cansolair that has developed an interesting product, the Solar Max. As described on their site, it is a forced convection solar heating unit. The claim is that the product can maintain a comfortable room temperature in a 1000 square foot home with 15 minutes of sun exposure.
I've read the testimonials on the site, and I'm wondering if anyone has had any personal experience with this company or it's product that they would be interested in sharing.
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