Renewable Clean Energy Info

Archive for August, 2008

Clean running water, an absolute necessity to our very survival, is also incredibly handy around the house. So handy, in fact, that most of us use it wastefully at least part of the time. As our growing population strains our water resources and infrastructure to the limits, costs for providing water will escalate. We can minimize those costs by employing a few simple water conservation methods in our homes.

We benefit in many ways by cutting down on household water use. Using water wisely by taking short showers, for example, or running only full loads in the washer or dishwasher results in additional savings by using less energy and less detergent.

By practicing water conservation at home we encourage our children to accept that natural resources are not in endless supply – a reality their generation will be forced to accept – a reality our generation too often chooses to ignore.

Saving water at home helps reduce or eliminate costs for infrastructure such as new or upgraded reservoirs, water treatment facilities, or sewage treatment plants. These are huge expenses which are passed on to homeowners through municipal taxes.

Enough said. Here are 12 ways to save water in your home:

1. Check for leaks. If you have a water meter, read it before and after a two-hour interval when no one is using any water. If it doesn’t read exactly the same, you have a leak somewhere in your house.

2. Find and fix leaks. Replace washers on dripping faucets. A drip rate of one drop per second wastes 1,000 liters per month (about 3,000 US gallons per year). Toilets are another common source for leaks. Check by putting a few drops of food coloring in the tank. If the color appears in the bowl after about half an hour, you have a leak. Replace worn parts. They’re cheap and the repairs are easily done.

3. Toilets are responsible for 30-40% of household water use. Avoid flushing unnecessarily. Don’t put anything down the toilet except toilet waste. Don’t be afraid to let it mellow if it’s yellow. Tissues, dead spiders, hair balls and other assorted trash belong in the garbage can, not the toilet.

4. Replace older toilets. The current standard is 1.6 gallons per flush. Toilets 10 years old or older may use anywhere from 3.5 to 7 gallons per flush.

5. Take shorter showers. If you don’t have a low flow showerhead, get one that uses less than 2.5 gallons per minute. You’ll never notice the difference. In fact, if you have low water pressure, you’ll get a better shower with a low flow showerhead. Some models have a control to let you easily stop the flow while you suds up, then resume for rinsing. What a great idea!

6. Turn down one tap rather than turning up the other one to adjust water temperature. It’s just as effective and uses less water.

7. Don’t let the water run while brushing your teeth or shaving.

8. Put aerators on all the faucets in your home.

9. Run only full loads in the washer or dishwasher, or adjust the water level for smaller loads. Choose water-efficient appliances. Front-loading washers use about a third less water than top-loading. Some washing machines are available with a suds-saver option that drains wash water into your laundry tub to be reused for another load.

10. Start a compost pile in the yard to avoid wasting water by using a kitchen sink disposal.

11. Keep a jug of water in the fridge for drinking so you don’t have to run the tap waiting for the water to cool. If you’re on municipal water, this practice has the added advantage of reducing the chlorine content as some of the chlorine escapes from the water into the air while it sits in the jug.

12. Collect the water that would otherwise be going down the drain while you’re waiting for the hot water to reach your faucet. You can use it for watering plants or cleaning.

It can be about the money. People are looking for alternative energy sources or alternative fuel for their cars nowadays. A few months ago, increasing prices of petroleum products were experienced almost throughout the world. With the increasing money spent on the pump, we are trying to look for alternative fuels for vehicles that can eventually lead us to bigger savings.

Cars or vehicles running on alternative fuel are generally running on fuel other than gasoline or diesel. Over the years, we have become witnesses on car running on electricity, a hybrid of gasoline and electric car, or even solar powered. There are even cars using water to supplement their gas through the water-to-gas technology.

There are several factors contributing to the rise and initiative of governments and manufacturers to produce alternative fuel vehicles. Heavy taxes on fuel, particularly in Europe and tightening environmental laws are several of the contributing factors. There is a possibility of further restrictions on greenhouse gas emissions.

Since cars are mostly running on fossil fuels which produce carbon dioxide which is a greenhouse gas, the number of greenhouse gases in the atmosphere is increasing. It leads to temperature rise which results to global warming and climate change.

There are cars that are capable in running on LPG, solar power, ethanol, fuel cells, hydrogen, and compressed cars. There are also what we call hybrid cars. Cars running on liquefied petroleum gas or LPG runs on a mix of propane and butane. Its hydrocarbon gases turn to liquid when compressed. Cars running on LPG can cut the fuel expense into half compared to petrol and diesel. It is also said to reduce the carbon monoxide emission.

Cars using solar power convert sunlight into electricity. It can be used to power electric motors or produce fuels such as hydrogen. Solar panels are put on the surface, more often on the roof, of the vehicle. These solar panels then convert the sun’s energy into electrical energy.

Ethanol is an alcohol produced by the fermentation of plant juice with high levels of sugar or from crops with high levels of carbohydrates such as wheat. Brazil began converting sugar cane into ethanol in 1975. Since then, Brazil has saved $1.8 billion by replacing their 200,000 barrels of oil daily consumption.

Brazil has already created 5.4 million ethanol- powered cars that are being exported to Sweden and Japan. Because of this industry they were able to provide 900,000 jobs to their people. Using ethanol as fuel were also able to reduce the toxic emissions by 30 % compared with other fuel charged vehicles.

Fuel cell cars covert hydrogen and oxygen into electricity and heat. The electricity can be used to power and electric motor and the only emissions are heat and water. Cars running on hydrogen are considered to be the ultimate clean cars. Since hydrogen vehicles only produce heat and water vapour as its by-product, its emissions are considered environmental friendly.

Hybrid cars use two different energy source or motors. An example of a hybrid car is the Toyota Prius. It uses advanced technology to combine a small gas engine with an electric motor. At slow speed, the car runs on electric motor while on the freeway, both the gasoline and electric motor is being used. The battery is also being recharged during the process.

Exploring alternative energy sources for cars is a way of adapting to the increasing fuel costs and taking active steps in resolving environmental concerns.

Both the scientific community and everyday people around the globe are diligently looking for alternatives to the fossil fuels that have driven the world’s energy needs for hundreds of years.

Everyone knows that those fuels are nonrenewable and send tons of pollutants into the earth’s fragile atmosphere every second. Everyone also knows that we simply cannot go on this way—but what can you do to try to cut yourself loose from the energy trap that has kept us in its grips for centuries? It’s a question more and more Americans are asking themselves every day. Here’s a basic primer on the alternatives that are available.

First, you can use solar energy to heat your home and provide hot water for household use. It can also be used to generate electricity via photovoltaic cells. The technology is constantly improving and it’s possible that recent breakthroughs in electricity generation will both increase the efficiency of photovoltaics and bring down the cost of the electricity they produce.

Wind power is becoming an increasingly important source of electricity in Iowa, Texas, and California, which lead the nation in wind energy generation, but nearly all states are investigating the possibility of adding wind generated power to their arsenal. There are also house-sized units available, and as the demand for them grows, they’ll continue to come down in price per unit and in installation cost.

Other forms of energy are less accessible to the average homeowner, but you can use mass-produced forms, such as ethanol, E85, or soy-based diesel fuel in your vehicle to cut down on fossil fuels and to lessen the amount of pollution you contribute to the environment.

Hydrogen fuel cells are still in the experimental stages, but many experts continue to insist that they’ll eventually represent the wave of the future in powering our vehicles. Time will tell, but the point is that you can take advantage of alternative fuels right now without waiting to see what happens on the hydrogen front.

Another important plus for turning toward alternative fuel sources is that there are sometimes significant tax breaks to be obtained for converting all or part of your home to something other than traditional fossil fuel-based energy sources.

Regardless of which alternative energy source appeals to you, before you begin shopping, take some time to look into possible tax incentives that may help offset a portion of their initial cost.

Alternative energy is often referred to as energy from a source other than the conventional fossil fuel source like oil, natural gas and coal. Alternative energy is not popularly used and is usually environmentally sound. It is also often times renewable energy. Several alternative energy sources are solar, wind, biomass, wave and tidal energy.

Population problem is not only a problem or concern about the number of people. People consume food, fresh water, wood, minerals, and energy every day. The increasing energy consumption is leading to the depletion of conventional energy sources as well as increasing pollution.

We are currently reliant on fossil fuel and other non-renewable energy. This causes great harm to out environment and will also tremendously affect future generations. Most of the current population relies on non-renewable energy source such as oil, natural gas, fossil fuel and coal.

Fossil fuels are non-renewable source of energy, it means it could run out. Also, when fossil fuels are burnt they produce the gas carbon dioxide (CO2). Carbon dioxide is known as a greenhouse gas since it traps heat from the sun and preventing it from escaping out of the Earth’s atmosphere into space. The amount of greenhouse gasses in the atmosphere is increasing. It leads to rising Earth temperature called global warming.

Alternative and renewable source of energy is therefore a necessity. Renewable energy is derived from resources that are regenerative or regenerate after consumption. For this reason, renewable energy unlike fossil fuels do not produce as many greenhouse gases.

There are several countries that are providing incentives for private sector or personal efforts to use renewable energy by giving tax incentives and subsidies. Currently, just 14 percent of the world’s energy consumption comes from renewable energy sources. But there is great potential for alternative energy. It could be large enough to cover many times the current energy consumption.

Several sources of renewable or also called alternative energy are sunlight, wind, rain, tides and geothermal heat. Wind energy comes from wind power that is generated from wind turbines. Wind energy are non-polluting energy source with low maintenance cost although the initial expense may be high.

Solar energy come from the sun’s rays that reach the Earth. Solar energy can be converted into heat and electricity. Solar energy can be converted to thermal or energy generated from heat. It can be used to heat water and heat spaces like inside greenhouses, homes and other buildings.

Biomass energy comes from plants and animal material that are usable source of energy like wood from trees, waste from other plants, manure or animal wastes. Biomass energy has numerous benefits. It uses waste materials that are usually dumped and uses up methane gas (a greenhouse gas). Fuels like ethanol can be made from biomass and uses as an alternative to petrol.

Meanwhile, hydropower makes use of the energy the water gains when it drops in elevation. That is why hydropower plants are near waterfalls or dams. Hydropower has been used since the start of the electric age but unfortunately the value of this energy has not yet been developed and maximized.

Another alternative energy source would be geothermal energy or energy derived from the underwater heat the world is emitting. Geothermal power plants are unaffected of changing weather conditions. It is also price competitive and helps the people’s reliance on fossil fuels lessen.

These only show that we can choose alternative ways on using energy to lessesn its negative impact on our environment. Alternative energy sources provide us a choice for a bright and healthy future. It may something be out of the ordinary but it can also be useful.

Picture this! You are able to manufacture electricity on your own to fulfill all your domestic energy requirements and are even able to save the surplus for future consumption. Sounds impossible? Well, not any more. You can actually accomplish all of the above only if you know the tricks of living off the grid.

Living off the grid simply implies that you don’t have to depend on the whims of an energy supplier for meeting your household electricity demands. It is an apparatus that can function autonomously when it comes to producing electrical power. And that’s not all! Assemble together a back up battery module and you can actually stash away the spare energy to be utilized at some point in futurity.

If you are not living off the grid, then you are presently affiliated to a formal scheme of electricity grids. That is, your power needs are being met by generic industrial power development units like coal plants, nuclear energy complexes, hydroelectric power stations, etc. most of these aforementioned powerhouses are under the direct command of public administration; that’s just a fancy of saying they are state owned.

Living off grid involves switching to independent modes of energy induction. This way you can shake off all constraints that the power company may have clapped on your power consumption level and produce as much electricity as your heart desires.

The best way of achieving this is by harnessing the potency of a renewable energy sources. Solar energy happens to be the most publicized alternative in this particular context. Replacing your terrace shingles with scores of solar panels should be considered a healthy repositioning of priorities. This array of inter connected solar cells then trap the latent vigor of sun light and transmuting it into usable versions of electrical energy.

Not only are they ecologically efficient, non-polluting as they are, but they cut down your energy bill as well. Is it strange then that a good number of European nations intend to make solar panel fitted roofs an absolute necessity for all homes, by means of lawmaking?

If you are not exactly the ‘sunny’ sort of a person, you can always bank upon air currents to cater to your energy obligations. Wind energy, though not yet as popular as its solar counterpart, is nevertheless gaining steady momentum.
The problem with wind energy is that there is no constancy to it; I mean no one can accurately predict wind velocity on any given day from beforehand; and then of course there is the issue of the oversized turbine as well. But no need to preclude any of your choices in the first place; if you advocate living off the grid, you can extract the usefulness of both these agencies according to your own convenience.

If you see it is not windy enough but the sun is shinning real bright, just put the solar panels to work; and when the sun is hiding behind layers of foggy cloud, let the unbridled wind turn the turbine wheels and furnish you with all the power you need.

Creating Home Energy Generation Systems

When you are tired of paying for your high home energy bill month after month and would like see some changes and feel some savings, then, there is a right thing to do: invest on one or more home energy generation systems.

Home energy generation system is the solution if you want to cut those bills down and utilize alternative energy around you just waiting to be tapped anytime. Home energy generation system provides you with the best way to get the maximum financial freedom on home energy. Sure, you have to invest first but it is all worth every penny. You can spare yourself from the present cost of home energy and the future increases that may occur. And most of all, investing on home energy generation system will definitely help the environment for it only uses harmless and clean source of energy.

Among all types of alternative energy that can be used, wind energy and solar energy are the most common.

Wind energy

Wind is very abundant in many parts of the country, thus, many household can capitalize on the use of wind as a source of home energy. It is also said the future’s main source of energy would be the air. As the cost energy production through fuel and oil grows increasingly high for the last years, the clean, safe and free air would be the better choice of the future.

As a main source of power for your home, it provides the financial freedom on the use of energy sourced from the expensive oil. However, wind speed varies on a daily basis. One day, the wind will blow strong. The next day, wind may not be able to keep your turbine spin. And even on the breeziest places in America, you can never tell when will be the next strong wind blow occurs. This is one disadvantage of using wind power but wind patterns do exist. It is said that summer brings less wind while the winter brings strong gust of wind.

If you are planning to install wind turbines on your home, make sure that the local zoning allows wind turbine. You must also ensure that there is a good source of wind on most days. A wide and open space, at least 1 acre, would be ideal for wind turbines. And, if you are paying more than $150 on monthly electric bill, then it may be a good option for you.

There are 5 main components of wind power.

The rotor is the set of rotating blades designed to capture air. The rotation brings power to the generator.

The turbine or the generation is the one attached on the rotor. It stores energy that the house will use.

The tail is located opposite of the rotor. It tracks the direction of the wind.

The tower raises the turbine, rotor and tail up to the air to receive the most amount of wind possible.

The governor is the mechanism that controls the production of energy. This is like the transformer you can see on electric posts.

Solar power

Houses that are built under the sun will compensate on the free solar energy.

There are 6 main advantages in installing solar panels on your roof.

1. Solar panels are lightweight, safe and most of all, easy to install. These are essential in order to place them above your roof.

2. Roof is also susceptible in UV exposure. The solar panel eliminates this. Your roof will also be protected from weather.

3. Solar panel contributes in keeping your house well insulated. They provide extra covering and enable you to save as much as 30% on heating expenses.

4. Drilling holes in your roof is very risky. The interlocking solar panels eliminate this risk.

5. Solar panel design is perfect on any roof type and size. In other words, you can get the perfect solar panel no matter what the size and shape of your roof is.

6. Solar panels are installed without requiring you to modify your roof. It will adapt instantly.

Solar power will tremendously help you cut down the cost of your electric bill. If you think you are in for this investment and if you think your location is most suited to have this, then the choice is fully yours.

The fear of global warming has led to some interesting
alternative energy ideas for the future that would
have less impact on the environment. Constant research
takes place daily for sources of energy that utilize
our natural resources, have little repercussion on our
atmosphere, cost less and are naturally renewable.

There has been much research in the area of solar
power, tapping geothermal heat inside the earth,
harnessing the power of the tides as an energy sources
and wind turbines, but scientists are going further
into their imaginations to develop energy from sources
never thought of before.

For instance; scientists are studying marine algae in
the hopes that they could generate power from the
methane given off by rotting algae; the methane could
then be harnessed to provide methane for burning to
power industrial needs for energy. Corn is being
tested as a fuel (ethanol) for cars, as well as home
heating sources, and there are many other areas that
you may not have thought about.

Early studies are looking at falling rain and how it
might be used to generate power (same premise as
harnessing wave power). I’m not a scientist, so I
can’t even begin to explain how or why this might
work.

The idea I like best is powering our own personal
IPod, cell phone and home computer by walking power. A
leg brace, equipped with an electricity generator,
gets the power from your every step. Need it charged
quickly? Go for a long run; need a little power to
power my laptop to get me through the meeting, go walk
an hour!

We cannot afford to overlook the pernicious effects of global warming anymore, claiming there is not enough evidence to support the hypothesis. Research results the world over clearly corroborate the fact that unless we start cleaning up the mess immediately, we are in for some irreversible ecological damages in less than a century. The need of switching over to alternative energy resources had never been more cogent. And this is where biofuels step in. Basically extracted from agricultural produce, bio fuels are the best green energy resource that we know of next to solar energy.
Biofuels are already being touted as the default option to petroleum due to its zero polluting content. Also known as ‘carbon neutral’ biofuels release exactly the same quantity of carbon dioxide into the atmosphere which it assimilates from it during its growth. No doubt, why biofuels are a rage with global investors.

The scarcity of energy supplies is a direct fall out of indiscriminate fossil fuel exploitation. Ecologists claim that, unless we preserve the existing stock of fossil fuel to the current level, it will adversely impact our societal progress. Biofuels therefore are more of a compulsion in the present context. Distilled from organic matters, it’s one of the best ways of generating ‘green’ energy. However, its most efficient denomination ethanol, developed from vegetables, corn oil or sugar cane, is not fit to meet all our energy requirements. Irony is that although global energy distributors have pegged the efficacy of ethanol to an ambitious 10 percent of world power supplies ahead of 2025, and an incredible 30 percent by 2050, the current bound remains stagnant at a lowly 2 percent.

The trio of Bioalcohols, biodiesels and biogas constitutes the first generation of biofuels. The first one of these is derived by the anaerobic breakdown, commonly known as souring, of starch rich plants; the next one is obtained from overheated vegetable oil while the last one is created from the zymlosis of organic matter.

The only rider with first generation bio fuels is that they are extracted out of edible crops. Their successors the second generation ones employ inedible harvest and discarded plant stalks. This too comes with the shortcoming that the cellulosic bio fuel it produces cannot be replicated on a bigger magnitude.

Algae biofuel is the third in line. And this is our biggest hope. Consuming marginal amounts of energy while yielding considerable output, there is little doubt as to why algae is such a hit with energy scientists around the world. Better methods of essential oil extraction from algae are constantly being probed by every quarter of global researchers.

There is of course a new strain of bio fuel emerging on the horizon. It is labeled as the fourth generation one. This type of biofuel is extracted from microorganisms. A groundbreaking innovation, this can be our answer to our entire energy crunch.

Until the time that we can come up with a technology that safely unlocks the potential of hydrogen as the energy reservoir, we have to depend on alternative energy resources like biofuels. Unless we do that, the march of civilization can come to an abrupt halt due to the looming power crisis.

How Well Do You Know Your Generator?

Back up power is important not only in business establishments but also in homes. This is especially so if people are experiencing man-made or natural calamities and have no way of preventing power shortage.

During these unfortunate times, people need a source of energy to power up appliances or furniture that is important in running their household. Examples of these are heaters to warm the home in winter times, air conditioning for summer times and of course, oven and other cooking appliances for food support.

Generators are important because people have no way of determining how long the power will be down. If you want to make sure that your home will remain in a good and stable condition, you should have back up energy in order and ready to use at any time.

What are the two types of back up generators?

1. Portable generators.

This is the most economical generator that is capable of supplying back up energy. Portable generators are the most commonly used in homes or household. Appliances that needed power supply are plugged directly into this generator. This is done using wires and other cords that are applicable to the appliances.

Many of these type of generator already has advance features like the stop or start button which people can use to be able to save up on the energy they might be needing for some time.

Portable generators also have different types depending on the volt specification that you are using in your home. You will be able to choose from 120 up to 240 volts capability.

One of the widely used portable generators is the one that is gasoline-powered. People choose this type of generator because it costs less compared to the other type. There are even those that run on diesel or a combination of both.

One of the downside to this is that it cannot be used for longer time. People need to refill and refuel this generator often to be able to extend its power support. In addition, diesel powered generators are much more expensive. Although it is more efficient and with supplies that are easy to find, you may find it hard to start in cold seasons.

2. Permanent generators.

Permanent generators are programmed to be turned on automatically within the specified time after power loss. These generators are connected to the wiring system inside the house. This is why it will start on its own whether there is nobody present in the house during black out. It also has the capacity to shut down on its own once power is restored.

This type of generator is powered by natural gases. The kind of gas that you are using to power some of the appliances at your home can also be used to power this generator.

The choice of permanent generator will depend upon how the homeowners plan to use it. If you need to power up more than the required appliances, then you can opt for permanent generators that have more than 17,000 watts capability.

These types tend to be more expensive than portable generators. But with all its capacity, the initial money spent will be worth it once you see the kind of back up energy it will provide when you need it the most.

Are generators hazardous?

Portable generators are more hazardous than permanent generators. This is because they are making use of gasoline and diesel and is more capable of burning up when overheated.

This kind of generator is like your car. They tend to overheat when used extremely for a long period of time. This is why you need to check regularly and rest it for a while to prevent any damage to you, to the generator and the appliances that it is powering.

Poisoning is also another hazard caused by portable generators. Since it is running on gas, carbon monoxide is being released into the air. According to studies, many people die of carbon monoxide poisoning. One of the reasons for this is that they are not aware that they are inhaling carbon monoxide.

To prevent this from happening, the generator should be placed in locations where it is properly ventilated. Consider placing them outside your home where there are no chances of people to be suffocated from the carbon monoxide it gives off.

Consider these things when you are in the process of buying a back up power for your home. Together with the necessary power supply is the need to make sure that you will encounter no health problems when you are using them already.

Types of Alternative Home Energy

Home energy consumption is one of the main problems of people today. The fact is, we all need electricity to power our lives. We need the level of civilization that can be provided by electricity. However, most people think that the price they pay is just too much for the amount of electricity they get to consume.

In the true spirit of humanity, people did what they always do whenever there’s something that does not completely satisfy them about life: they innovated.

Alternative home energy has been on the roll ever since people have made designs efficient enough to make them feasible. People may think that alternative energy is just a recent development, but in fact, alternative home energy has been around even before electricity was discovered.

Consider these types of alternative home energy:

1) Wind energy – Nowadays, windmills are used in homes to run small generators. These generators produce and store electricity to be used in running small home appliances. However, windmills have been around for a long time. If you take a look at the word “windmill” you will realize that this type of alternative home energy device was used for a purpose other than producing electricity.

Yes, the windmill was indeed, used to mill grain. As you may well know, grinding grain my hand is very hard work. So in order to make life more convenient and the production of flour more efficient, windmills were used to turn the large grinders.

Seeing as how this was so effective, it was inevitable that the windmill evolve into the 21st century in order to be used as a power source.

2) Solar energy – Many people think of this type of alternative home energy as something that’s technologically advanced. In a sense, harnessing the power of the sun to produce electricity is. But this alternative home energy has already been in use for a long, long time.

Think about this word for a second: clothesline. Aha, you get it now, don’t you? Yes, we have been using solar energy to dry our clothes for God knows how long. Think about that spin dryer or hair dryer you have and think about how much electricity it uses to do a task that the sun has been able to do for years, albeit at a slower pace.

This alternative home energy is harnessed nowadays for a variety of tasks. Some use it to heat their homes, others use solar power to heat water, and other people use solar cells to power small appliances and save a little on that electricity bill. The efficiency by which we are now able to convert solar power into electricity is of such a degree that it is very possible to power a whole house! Now, isn’t that amazing?

3) Hydropower – This type of alternative home energy makes use of water currents in order to turn turbines to run generators. Once again, this is not really a new technology. Like windmills, waterwheels were often used to harness the power of a nearby river in order to grind grain into flour.

4) Biogas – This is another alternative home energy source. Biogas is produced naturally via the decomposition of different biological material. By using biogas instead of the common LPG, home owners can cut back on their heating bills.

As you can see, there are a lot of different types of alternative home energy. What you need to do is explore these options and discover which type is the best for you to use. You have also been informed as to how we have used these energy sources in the past and how they are being used today.

Unfortunately, some of the methods of harnessing these different alternative home energy types may yet seem impractical to the common homeowner. However, as technology continues to evolve, you can be sure that the use of alternative energy will be more efficient.

By using alternative home energy, you accomplish two things: you save on your expenses and you help create a better world. You see, alternative home energy sources do not produce any harmful effects to the environment. By using these sources, you harness relatively free energy. Some people may say that the devices used to harness these sources may be too expensive, but in the long run, you’ll end up saving so much more than you spend.