Showing posts with label alternative energy. Show all posts
Showing posts with label alternative energy. Show all posts

Friday, August 31, 2018

Backup to a Better Backup Generator Solution

You may already have a backup generator for the house. In fact, you may have the backup generator with you just about everywhere you go. Plus, it might be totally quiet, for hours.
Yep, we are talking about your hybrid gas-electric vehicle. Hybrids have been selling like crazy on the farms because they can easily be used to generate 120-volt electricity to run hand tools and generally provide backup power.

Most newer vehicles offer a 120 plug, but they won’t power much. What you need is an inverter that will power whatever you want, frequently 300 to 400 watts will be sufficient for many applications. Smaller inverters can be simply plugged into a cigarette lighter, but bigger inverters should be wired directly to the battery.

A backup solution for the house is rather awkward, inconvenient and requires fuel at a time when the least fuel is available, storms and outages. Here’s the cost for a generator solution.

Generator
The generator solution costs something like this:
·         Generator $500 (or about $500 to $1,000 for an inverter that is much quieter and provides smoother power).
·         Fuel, maybe 8 to 12 gals per day. At 10 gals x $3 is $30 per day.
·         Storage of generator and fuel cans.
Traditional generators (gas or propane or diesel) provide lots of smoke, noise, and require maintenance. The generator produces electricity, even under very low loads, so much (maybe most) of the electricity (and fuel) is wasted.
Generators are best used some distance from the house so as not to asphyxiate the inhabitants.
Tip. Make sure not to allow the generator to run out of fuel, the sputtering causes the generator to surge which kills off appliances at an alarming rate.
Auto with Inverter
Hooking an inverter to the vehicle may be a very good solution for many purposes, especially lower loads in the house such as refrigerator, lights and fans. However, you will have to go start the vehicle before the battery gets too low. (Taking regular lead batteries below 50% will seriously erode their life span.)
A 1000-Watt inverter can cost between $80 and $110 (modified-sine wave), and about twice that for the higher quality output of a pure-sine wave recommended for sensitive electronics.
Your vehicle is rather quiet, and rather fuel efficient compared to a generator. Your typical vehicle will not be able to handle large loads, however. One approach is to set up a battery (or battery bank) that can be recharged via the vehicle.
Even better is to hook up to your hybrid vehicle.
Hybrid Vehicle with Inverter
The hybrid vehicle is a wonderful backup power supply, just like the uninterruptable power supply (UPS) you use for your computers and wifi. You can have continuous power as needed, when needed. Plus, the hybrid vehicle is designed to start up the motor and recharge when the collective batteries get low. Very cool.
Here’s how you do it. Hook up your power inverter directly to the 12-Volt (direct current) battery of the hybrid vehicle to produce alternating current (120 AC). Put the vehicle in the “on” mode, but with all the vehicle electronics turned off, i.e., turn the air conditioner and lights off. Now, when the batteries run low, the vehicle will automatically start to recharge all the batteries, lithium as well as the 12-volt battery.
Tip: Please make sure the vehicle is in a safely ventilated area. Do not set this arrangement up in the garage!
Add in a Battery (Bank) and a Solar Panel (or More)
So good news, you now have an inverter with your vehicle so you can use good, clean, quiet power anywhere you and your Prius happen to be. Yippee!
But how about the home or cabin when the Prius is away?
Get a battery or more, and hook up the inverter to it. This should help you get through several hours with just the refrigerator. Batteries of this type (deep cycle, for example) will cost $150 to $350 each.
Then, get a solar panel, or more, and hook them up to recharge your batteries during sunlight hours. (Costco has a 100W Coleman with 8.5 amp charge controller for $159.)
Now, I have continuous power for low load (the battery plus a 1100W inverter at $90, all for under $400). I’ll buy more batteries and/or more solar panels as and when I need them. The 1100-watt inverter does everything that I want to do in emergency or in the cabin. It does a small air conditioner (window unit or small mini-split for a short period of time; a refrigerator for several hours; LED lights and fans for days). It won’t do central air, well pump, oven, dryer, hot-water heater, microwave, or several heavy load items simultaneously. Bigger load electronics include blenders (making Hurricanes and Margaritas), blow dryer; coffee pots, electric saw, etc…
Be careful putting together your system and your battery banks. Hooking two 12V 100 amp batteries together can result in doubling of the voltage (48 Volt in series) or double the amps (200 amp hours in parallel) depending on how you hook them together. Make sure you get the right inverter to match the higher voltage if you go in series. Try to get the same batteries if you bank ‘em.
I can see you eyeing your electric golf cart, you already have your own battery bank on wheels. Unfortunately, the voltage will be 36 or 48 Volts (say 6 x 6-volt batteries hooked up in series is 36 volt). Your inverter would need to match the voltage of your cart (or carefully hook up a 12-volt inverter to 12-volt battery equivalent, which in this case is two 6-volt batteries).
In short, you may already have a great backup power supply solution. Hook up your hybrid to an inverter and you are good to go. Add in a battery (or more) and a solar panel (or more) and you have a nice, quiet, renewable power solution.
Tip. Use a volt meter. The meter is cheap. Burning out electronics can be expensive, cause fires, shock the bejeebers out of you, and generally be very inconvenient!
Tip2. When you buy your new hybrid vehicle you get “up to” $7,500 back in the form of current-year tax credits! The federal tax credits for new EV and PHEV cars (and for home solar, as well) are phasing down, so you might want to accelerate your purchasing decisions. (See ins and outs of tax credit for vehicles at Edmonds.)

Do we all need to rethink the way the design/plan for (emergency) backup power? Let us know what you think? 

Sunday, May 28, 2017

Tesla Solar Roofs. Better, Cheaper, Stronger, Longer

Tesla Solar | Tesla:

Here is the information to order your roof from Tesla (that has now merged with SolarCity).

The tempered glass tiles are much stronger, much cheaper and last long (lifetime of the house or infinity warranty, whichever comes first).

Oh, and then there's the PV electricity generation, above that. It is 30-years warranty on the PV, it seems.

This is something that is called an "irrefusable" value proposition. Especially if the house (building) is new, or an older roof that should be replaced within a few years.

Here's how it works. Most of the roof tiles are not PV. Only 30% to 40% of the roof would be in prime solar view.  The PV panels are about $40 sq ft, but the averages should be about $22. That also depends on the sizing of the system, no need to over produce in most cases (states).

Here's Tesal's Specs and Sizing Calculator.

Apparently, from the street, you can't tell the difference between regular and PV tiles. Top view (helicopter) view you can, although it should be far less conspicuous than the usual PV panels.

Also, remember those 5 GigaFactories for batteries and cars going up around the worlds. Well, couple in US and next one in Europe (?UK?).

The pricing for preorder that started in May 2017, includes an installed 14kWh Powerwall  2 system. With battery backup, they entire building could go off grid, assuming the local power company and state law allow it. A generator (fuel cell) would do the trick.

Of course, hooking to the grid provides the opportunity to sell back to the grid and assist with peaking. This type of building can help twice with peaking.  The excess electricity during peak times (heat of the day, usually) can be sold back. The batteries can be used as well at peak. They can be replenished in off times by the PV system or during low-load off-hours by the power company.
This idea of battery pack backup can also apply to your favorite EV car as well. Dare I say Tesla or Bold. If the car will not be used today, why not use it to help with peaking loads, if needed, as needed?

For an existing home/building, you will want to do an energy audit and reduce the energy usage first, then size and install the roof (with power system).

Very cool.

This appears to be a game changer.

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Thursday, April 14, 2016

ECO:nomics | The Wall Street Journal

ECO:nomics | The Wall Street Journal:

The WSJ's big forum on ECOnomics seems to have been a great learning and sharing session for divergent ideas on how to blend economic growth/development with environmental needs.

A special report in the WSJ on Wed, April 13, 2016 offers several takes and interviews covering the spectrum of associated topics.

A couple base statistics are that coal generated electricity has dropped from half of all US generation to less than 1/3 within about 10 years. The big gain is Nat Gas, but that too is changing. In 2015 solar was the #1 install base with 9.5 gw (37% of new), NatGas 8 gw (31%), wind 6.8 gw (26%). Only 4% new nuclear and fractions of other.

Related to the switch from coal to NatGas, this is only a stop-gap measure: moving from one really bad non-renewable, coal; to a relatively better non-renewable, NatGas. Michael Brune from the Sierra Club comments on the methane and other issues that brings NatGas closer to parody with coal (really ugly vs. relatively ugly).

Coal is really taking a hit, as Peabody goes bankrupt this week, bringing down all of the big coal companies. No victory laps here; the pain and suffering in the mining communities is going to be horrendous. (Also, bankruptcy doesn't mean the mines will all stop, just that the debt associated with the companies will replace the equity positions.)

Even against crashing oil/coal prices, solar & wind are winning major solid footing. Even with the likelihood of subsidies going away, are now starting to be very price competitive (especially if you consider externality costs). BUT when the wind doesn't blow and the sun doesn't shine (night) we still need regular power generation. Or battery-type storage.

You have to marvel at the gain of renewables during the second year of record low fossil fuel costs. That is really, really impressive.

Check out all the articles on the ECOnomics conference and interviews at the special business & energy section of the WSJ: http://www.wsj.com/news/types/journal-reports-energy

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Wednesday, November 11, 2015

Power Struggle: How the Energy Market Could Shift in 2016 - Bloomberg Business

Power Struggle: How the Energy Market Could Shift in 2016 - Bloomberg Business:

Wow. Absolutely perfect assessment of the energy world, past and future.

With pretty graphics to go along with the trends in energy.

So what will be the energy source(s) of the future.

The one thing for sure, is that it won't be coal. As the rest of the world gets out of coal, so will the 2.3B people in China and India. They simply can't afford the pollution and health costs that come free with cheap coal.

The assessment seems puts energy into perspective, and indicates how a clear transition from one form to another (wood to coal, and coal to oil) might not be what we can expect to look forward to in the future.

Don't want to ruin the ending, you will have to watch all 3 minutes of the video to find out what to expect in the energy world.

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Monday, August 3, 2015

Obama to Unveil Tougher Environmental Plan With His Legacy in Mind - The New York Times

Obama to Unveil Tougher Environmental Plan With His Legacy in Mind - The New York Times:

There's some good and some bad about this.

We really should have an energy policy in the country, but we don't. And the congress should be doing that planning and guiding of long-term energy and economic development. But no.

The video says saving on energy. That's not true, it will cost more for energy, the massive savings will come from improved health. Coal causes huge health and environmental impacts.

"The Clean Power Plan will ultimately save about $45 billion a year, the EPA says, by both shrinking Americans’ energy use and reducing health costs for asthma, lung cancer and other illnesses caused by air pollution. The EPA estimates the rule will also cut about $85 a year from the average American’s utility bill."  via USA News.

Expect that the costs at the meter will be more, especially since it is so easy for the power utilities to pass them on, given a good (or bad) excuses. However, the health savings are each and every year forever. These are massive savings. Probably far greater than the $45B or so estimated.

The switch from coal is happening already without any such effort by the EPA. Clean(er) NatGas has been over-abundant and been the main gainer over the last 8 years. Also, we flair about half of the NatGas in the USA from fracking, why not figure out how to flair it into an electric generator and wire the energy back home?

Two secrets of coal is that about 10,000 people die each year in mining accidents, mostly coal. That's more than die in many years from natural disasters. The really dirty little secret of coal is coal ash. It has very high levels of heavy metals and such. It appears that we have no plan as to what to do with the ash, so it sits around in every state just waiting for disaster. Much like we have not plan for Nuclear waste.

NatGas is far better than coal, but it is still not sustainable. Since power plant planning is 50 to 100 years forward thinking, it seems that we should be doing likewise. Wind only works when the wind blows. Solar only works with the sun signs.

It seems that if we had a plan to be sustainable eventually, we would be better able to make decisions on the actions that a rational man (or woman) would make today.

Sadly, the coal miners and coal economies are stuck in the middle of this ugly downturn to their livelihood way of life.

Just saying...

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Saturday, May 30, 2015

Inside the war on coal

Inside the war on coal:

Wow, this is a very thoughtful and well presented article on Coal.

The real demise of coal is too fold: raising costs of trying to make coal a little cleaner (less dirty); and the increase of cheaper alternatives.

Number 1 in all of this is the dirty cheap costs of NatGas which is a by-product of much oil production. We in the US flair about half of the NatGas we produce because it gets in the way of the valuable oil production process.

NatGas is soooo much cleaner to burn and produces only half the CO2 emissions.

As people and communities realize the real costs of burning (dirty) coal, the political will to back coal simply because it is cheap is seriously waning. As the externality costs start to mount, people are less inclined to have the plants in their back yard.

But, the Sierra club can not take that much of the credit. Basic economics is ruling. The EPA wants cleaner coal, which makes it more expansive at the same time that NatGas, wind and solar are all getting better and cheaper.

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Tuesday, October 28, 2014

Virtual Event Program | GreenBiz

Virtual Event Program | GreenBiz:


BIG VERGE conference starts today.

Put on by Green Biz.

Virtual if you want to have a baby footprint on a great meeting. The travel time is a little less than going to San Francisco (although you will miss the foods and sounds and local color).

This is a really interesting mix... Including some big companies and some disrupters.



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Friday, June 13, 2014

BioLite BaseCamp Stove | Turn Fire into Electricity by BioLite. Saving lives, one stove at a time. Kickstarter Funded project.

Repost from IPzine...
BioLite BaseCamp Stove | Turn Fire into Electricity by BioLite — Kickstarter:

I love it. But only 62 hours to get in on the KickStarter offer. They are at twice goal with $800k+ and 3,000 backers.

Yes, it was DARK in Miami, when Hurricane Andrew came through South Miami/Homestead on August 24, 1992. Well, afterwards really. It would be weeks before most of us would get power. So bar-b-q grilling was the norm. That was not quite as much fun after a week or two without baths and without air conditioning. Little or no ice and warm drinks. Muggy and humid.

You did want to cook, obviously, but all the heat from the grill was the last thing we needed.

But a really cool cooking stove popped up in New York. A tiny stove the burned wood (or charcoal) and produced focused head for cooking. No need to cook the cook too.


This technology works wonders in countries where there is little or no electricity, and wood is often scarce, and the smoke from open cooking causes some of the world's worst health issues (probably only exceeded by water/sanitation).
You gotta see how far the technology has come. This is a BIG stove, relatively, that generates electricity (USB power) and has battery. It has an internal fan, to fan the fire so it can produce some serious heat possibilities -- especially given the ability to focus the flame.

This version comes with an LED light so you can see what's cooking at night.

As they say, this is the first version of the BaseCamp that is crowd designed. When you jump in on the crowd funding at KickStarter (BaseCamp) you will get a free carrying case.

You also get the warm-fuzzy feeling of knowing that this technology will save millions and millions of lives in energy starved countries.

All very very cool.

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Friday, January 24, 2014

China Pollution Is Blanketing America's West Coast - Business Insider

China Pollution Is Blanketing America's West Coast - Business Insider:

Oh boy.

We export raw materials and coal to China so they can make finished goods and export them back to us in the West/USA. They don't have the safety worries that we do... Some of the externalities affect only China, but many affect us all, especially those countries and environments closer to the mainland of China.

"Cities like Los Angeles received at least an extra day of smog a year from nitrogen oxide and carbon monoxide from China's export-dependent factories, it said.

"We've outsourced our manufacturing and much of our pollution, but some of it is blowing back across the Pacific to haunt us," co-author Steve Davis, a scientist at University of California Irvine, said."

Yuk! :-(

A good economist would argue that  products (say coal, especially the really dirty, high sulfur stuff) that produce negative externalities should be assessed a tax that roughly matches the costs of the externality. Using this logic, we would tax coal (especially high sulfur coal) that goes to a developing country, and tax them even more if they intend to burn the coal without scrubbers and such. This might not stop them from burning coal, but it would make other options more attractive that are cleaner (less negative externalities).

Unfortunately, China has a LOT of coal in the country. They now burn more than half the world's coal each year, so they do have to import it as well.

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Friday, September 20, 2013

Study: Natural gas industry can cut fracking emissions

Study: Natural gas industry can cut fracking emissions:

This would be great to minimize the methane from the fracking of wells.

Since NatGas is soooo much cleaner than coal (and gasoline). It is a slam-dunk decision as a way to start moving away from coal.

Of course, it is not a sustainable solution for the looong term. NatGas could be a bridge fuel to a clean and renewable future.

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Thursday, August 15, 2013

It Keeps Getting Cheaper To Install Solar Panels In The U.S. | ThinkProgress

It Keeps Getting Cheaper To Install Solar Panels In The U.S. | ThinkProgress:

The cost of solar is dropping and the install capacity is quietly on the rise.

Prices are down to $.30 to $.90 per watt.

Plus the market is starting to be healthier. China is no longer allowed to dump their (artificially cheap) over capacity on the US and EU.

Even the White House is jumping onto sun power.

Very cool.

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Monday, December 3, 2012

The global energy challenge: Awash with carbon : Nature News & Comment

The global energy challenge: Awash with carbon : Nature News & Comment:

Happy days, all you can eat at the energy banquet.

Or would that be happy daze.:-(

This is a great visual summary from the article in 2-page brochure and graphics of our fuel consumption ways.

Note how much China has passed the USA and how much of Chinese energy is from coal.

Ouch!

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Friday, December 30, 2011

A Year for the Record Books | Planet3.0

A Year for the Record Books | Planet3.0:

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This to us from MacDonald from GreenDistrict...

It is one of several places to start rounding up the status of sustainability (gain &) loss for 2011 and start to plan for 2012.

As we start to organize the (un)balanced scorecard for an unsustainable year of horrific sustainability numbers...

?What would be a good summary for the year, even if the summary has a lot of bad news in it?

Non-Decisions might sum it up. Economically, you have the dysfunction of the US and EU. Efforts are on to eliminate the EPA from federal and state governments. Imagine a budget bill to keep the federal government running for the first two months of 2012 that contains efforts to stop energy efficient light bulbs.

(Light bulbs will have to be 25% more efficient is basically the law. The obvious replacement could be -- but doesn't have to be -- compact florescent lights that save about $20 to $35 over the life of each bulb, PLUS a huge savings in electric energy which is currently being produced 50% from ain't-no-such-thing-as-clean coal. Europe did it a couple years ago. The arguments against the new law use obsolete and unfounded facts.)

Globally, climate response talks have been pretty pathetic since Copenhagen (Dec 2010) and there's been a lot of talks on several continents since then. Without the biggest polluters in the world on board -- China, USA & India -- the whole thing disintegrates. Now with Canada jumping off the bandwagon that means about 50% of the world's pollution and emissions will go on with little or no impediments. Apparently, the idea now is to proceed with the old Kyoto protocol while a permanent agreement is being reached.

But, what's almost as scary as the global-warming/climate-change metrics that came in this year, is the development of yet another massive UN organization. But this one would, by its very nature, have to have a long reach into the countries who are members. Big bucks to help countries that will be most impacted by droughts, floods, etc. This would include island countries that are about to become much smaller as the sea levels rise. I wonder if Key West will qualify. (By century end, the Keys should be 25% to 50%+ under water.)

At this point, Nuclear (ouch!) and NatGas looking a whole lot better than they probably should. NatGas is sooo much cleaner than (dirty or relatively dirty) coal, and it's not destabilizing to the world economies (wars, trade balances and shifts of wealth to less-than stable countries).

For some reason, you would think that the "sustainability" measure would provide self-evident solutions. If fuel is not renewable... then it can't be used forever... then you should make plans now to replace it... and continue to do so... until that fuel is no longer needed and totally replaced by renewable sources.

Bloomberg puts it well for the whole of a business (or any organization): “If you don’t have a sustainability plan, you don’t have a business plan." See http://www.bloomberg.com/sustainability/ 

Now, if only there were good private sector solutions to some of these problems of sustainability!... Hmmm...

Sunday, October 30, 2011

Energy 'wedges' - MIT News Office

Energy 'wedges' - MIT News Office

Here's a great visual. Wedges. Click on the symbol to see what happens if we get serious about solar, wind... and EE.
Of course doing nothing is not a very good option.

Sunday, February 21, 2010

Bloombox... Fuel Cell in every household.

Give a look at the cool Fuel Cell technology that was announced tonight on CBS. They have 20 companies, including Google, FedEx and Wal-Mart testing units. BloomEnergy will have to get its mass production in place. The cool thing about fuel cell technology is that it can use a multitude of fuels and it can function as a power generator as well as an uninterruptible power supply (but without the issues associated with batteries).


Also see some discussion on this issue at Earth2Tech.

Pretty cool. Let's see how reviews sound now that the technology has been unveiled.