3 Eco-Friendly Trends in Construction Equipment

When it comes to the latest trends in the construction industry, it seems that it is all the rage to be eco-friendly. One of the main reasons for this is simply because public awareness of our environmental footprint continues to get more prevalent with each passing year. This awareness has also been bolstered by increased legislation across the world. If you are looking to capitalize on this current demand, there are a number of eco-friendly construction trends that you should be aware of.

Energy Efficiency

Energy efficiency with a construction company starts with the type of materials they use to construct energy-efficient homes. For example, almost every home constructed these days emphasizes light-emitting diodes (LEDs) instead of regular watt bulbs. However, that is just the beginning. Construction experts and architects also realize that they must build a home to work with the sun and not against it. For example, one of the things they do would be to position the building to make use of all of the benefits of the sun. Yet another thing they emphasize would be to create a “net-zero building,” which is a structure that produces as much energy as it consumes.

Protecting the Surrounding Environment

Keeping the environment around a construction site as safe as possible is one of the key endeavours of a green construction company. They begin this process by following a number of important procedures. For example, composite construction mats are particularly useful for protecting ecologically sensitive areas such as wetlands. Additionally, a lot of companies will administer procedures for effective waste removal. The last thing they want to do is emit a lot of waste into the surrounding environment, so many of them also have procedures in place to offer protection from chemical spills as well.

Energy-Efficient Construction Vehicles

More and more construction firms are looking into vehicles that will not use as much energy as their predecessors. One example of this would be machines that have interfaces in place in order to reduce fuel consumption. This heavy equipment has either an “economy mode” or an “on-demand throttle” that will only use engine power when it is needed. These machines also often have electronic monitoring systems for engine health and even the tires!

As you can see, many construction firms are getting serious about their impact on the environment. They not only want to construct buildings, but they also want to make sure the Earth is safe for our children, grandchildren, and great-grandchildren.

How Do Solar Panels Work?

The earth receives 173,000 terawatts of sunlight energy on a continual basis. That’s 10,000 times more than the total energy we use. One hour’s worth would power the planet for a year. This is a free and renewable power source, and it’s one that can bypass the harmful effects of energy generated by fossil fuels.

What They’re Made Of

Solar panels are mostly composed of silicon, which serves as a semiconductor. Semiconductors have properties between those of conductors and insulators, and these properties allow them to be affected by sunlight. There are two types of silicon used. Monocrystalline and polycrystalline are the two most popular types of solar panels. Polycrystalline panels are somewhat more efficient than monocrystalline, but they are still a bit more expensive. Work is also underway with materials such as Perovskites, which allow for cheap and lightweight printed cells.

How Sunlight Gets Turned into Electricity

A solar cell is an electronic device with a layer of negatively charged semiconductor (silicon) that contains more electrons placed over a layer of positively charged semiconductor with fewer electrons. The opposing charges create a repulsive field between the layers. When sunlight strikes the top layer, some of the electrons are knocked loose, creating holes. Due to the repulsive field between the layers, the holes migrate to the bottom of the lower layer while the loose electrons are pushed to the top and conducted away for power use. They are then returned to rejoin the previously migrated holes on the lower layer.

Why They’re Eco-Friendly

Because only electrons move – and they move in a continuous loop – nothing is lost. Solar cells can last for decades. Power remains cheap, which enables households and businesses to operate at an economical level. Electricity can also be decentralized and used in more direct and creative ways, eliminating the need for fossil fuel-generated lighting in remote locations and allowing for low-emissions farming. While fossil fuel power has a negative global impact and is limited, solar remains a free and renewable resource.

The cost of solar modules has dropped by 99 percent since the 1980s, and it’s still falling. In countries such as Spain, Germany, and Italy, solar energy is now cheaper than energy from the grid. Electrical storage is also being improved, and work is underway to use more effective semiconductor materials in multiple junctions that can catch more wavelengths of sunlight, bringing efficiency up from 25 percent to as much as 50 percent. Because the cost continues to drop as efficiency steadily improves, solar is a cheap and renewable energy source for the foreseeable future.

Limitless Energy are designers and installers of renewable energy systems in Wales and beyond. We are energy consultants for domestic and commercial projects and can produce reports detailing potential opportunities to help reduce energy consumption and receive financial support. If you have any questions about renewable energy systems, please feel free to contact us!

How to Build an Environmentally-Friendly Home

Building a home requires a lot of decisions. Every situation that calls for input can be investigated to determine actions that have the least negative impact on the environment. Some of those decisions are in the areas of heat sources, insulation, and construction waste.

Integrate Renewable Energy Sources

Your home needs a variety of heat sources. You want to heat the air for your family’s comfort. On-demand hot water is also helpful in today’s homes. There is a selection of alternatives that use renewable sources, such as solar, heat pumps and wood-based systems, to generate the heat you need.

  • Wood-burning stove. A wood-burning stove can be used instead of a furnace that burns a carbon fuel, such as natural gas or oil. You can have numerous stoves to heat areas around your home. Manufacturers now build stoves that have been approved to have a minimal air-quality impact. Some are even designed to provide hot water for the faucets in your home.
  • Solar hot water heater. Placing a panel on your roof to capture the heat of the sun and warm your hot water tank is a very efficient way to directly use solar energy in a simplistic form. One small panel on the roof to capture solar energy for heating water may be all you need.
  • Air and Ground Source Heat Pumps. Heat pumps gather solar heat energy from the air or ground and pumps this around your heating system. Both Ground and Air Source Heat Pumps save you money through improved efficiencies, reduce your CO2 emissions and even earn you money through government incentives. Heat pumps are fully automated with set and forget technology and low running costs, and have been around for more
    than 100 years.

Relevant: What’s the Most Sustainable Method of Heating Your Home?

Insulate Well

A draft-free home is more sustainable. It will stay warmer in the winter and cooler in the summer. This will result in less fuel and energy use. Make sure you at least meet the required insulation levels for your area. Exceeding the requirements may cost a bit more during construction, but less energy usage over the long term is better for the environment and can save you money.

Relevant: The Complete Guide to Eco-friendly Insulation

Reduce Waste During the Building Process

Sustainable building doesn’t have to mean solar panels and geothermal heating; it can be much simpler. Good communication between the homeowner, the designer, and the home builder is key to reduce waste during construction. When homeowners are specific about requirements and communicate with the designers and architects, they can provide precise information to the builder. Exact details help assure owners get desired home features. Rework is costly in terms of time, money, and wasted materials. Also, owners and builders can consider the use of recycled materials. Recycled timbers, railroad sleepers, and ceramic tiles are just a few of the construction materials that can be kept from the landfill and reused. Locally-sourced materials can help to reduce carbon emissions in the transport process, as well.

Relevant: What is a Sustainable New Home?

When dreaming of and designing your new home, start from day one with consideration of the environment in mind. The result will be a quality, low-impact home.

Shrink the Environmental Footprint of Your Business by Implementing These 4 Practices

As a business, the operations in the workplace are likely a top priority. Due to the impact that companies can have on the environment, an increasing number of establishments are giving more thought to their environmental footprint. If you want to reduce your effect on the planet as a business, there are a few necessary steps that you can begin taking.

Recycle Electronics

When it’s time to replace your printers or computers in the office, you’ll need to discard the old equipment that is no longer used. Instead of throwing out the items, you can recycle electronics to ensure that the items are repaired, or the parts can be used. You can also replace outdated equipment or appliances with energy-efficient counterparts. Consumer Reports explains how to safe recycle your electronics , “Plenty of nonprofit organizations and local communities offer options to help you recycle old electronics. 

Recycle Paper and Plastic

Begin skipping paper as much as possible by making everything electronic in the office. You can also begin recycling paper in the proper way by preventing contamination from being present in the recycling bin and also recycling any paper that has been shredded. It’s important to separate paper waste from other kinds of trash. Otherwise, according to Fluent Conveyors, “contaminants like dirt and trash liquids can soak into the paper, causing the value and quality of the paper to be reduced. This could result in the recycled paper mill or manufacturer rejecting the load.” Now that’s a real waste!

Promote recycling in the workplace by providing each employee with a recycling bin at their desk. This can limit the amount of waste that is generated. You can also host contests or offer incentives to team members who recycle the most plastic each week to promote the habit and create a green workplace.

Source Responsibly

If you are producing a product that requires using natural resources, it would be smart, not only for the sake of the environment, but also for marketing efforts, to acquire these natural resources in a safe and sustainable way. For example, if producing something akin to kratom powder or CBD oil, products which are often consumed for health purposes, you will want to reassure your customers of where they come, as well as the quality of the resource. To use the example for before, if you look to Kats Botanicals pages on kratom, you will see that it mentions the source of their kratom. You will want to similarly do this with your product.

Reduce Energy 

Limiting the amount of wasted energy that your business generates is one of the many ways that you can begin to reduce your global footprint. This can be done through clever building management systems, renewable energy systems and changing lights to LEDs etc.. Waste energy can also be minimised through reducing packaging, go paperless, and utilize composting programs that are available in your local community to limit how much is discarded each day.

If you’re selling physical products, consider switching to recycled, biodegradable packaging. Corrugated boxes made from recycled paper and cardboard are produced with minimal environmental impact, and will compost more easily than synthetic alternatives. There are several methods for getting your branding onto this type of packaging, so you don’t need to sacrifice branding power when switching to more sustainable packaging.

 

Not only are there many different ways to shrink your environmental footprint, but it’s possible to save more money with a few minor steps taken as a manager or business owner. Remaining conscious of your company’s impact on the earth can allow you to find new ways of being eco-friendly as you continue to succeed in the industry.

Limitless Energy are designers and installers of renewable energy systems in Wales and beyond. We are energy consultants for domestic and commercial projects and can produce reports detailing potential opportunities to help reduce energy consumption and receive financial support.

5 Ways Renewable Energy Will Positively Impact Our Economy

The sources of renewable energy are either supplied continuously by the sun or from inexhaustible sources like geothermal energy. Other sources like coal, natural gas, and oil have a slow rate of formation compared to the rate of consumption. The current use of renewable resources produces less pollution, stable and secure energy sources for the country, and they also pose as a potential source of economic development.

Some fear that transitioning away from fossil fuels to clean energy will hurt the economy. We are going to look at 5 ways in which renewable resources positively impacts our economy now and in the future.

Create more jobs

American people spending their dollars on American products are going to create more jobs here in the U.S. and will eliminate the possibility of foreign outsource. This means the renewable energy industry can provide significant growth to the job market. When you compare the use of technology to extract fossil energy and that for renewable energy, fossil energy technology is mainly mechanized compared to renewable energy tech. There is more job creation in renewable energy tech for every unit of electricity that is generated.

Some of the jobs created include project development, turbine construction and installation, manufacturing, transportation and logistics, maintenance and logistics, legal, consulting, and financial services. The Union of Concerned Scientists has identified that renewable energy produces three times more energy than fossil fuel energy.

Healthier workforce

There are several health benefits to renewable energy sources; fossil fuel energy has been linked with transmission of diseases through water and air pollution like heart attacks, respiratory problems, and neurological damage. On the other hand, renewable energy does not pollute the environment.

The use of renewable energy helps to reduce the cost of doing business, reduces premature mortality, sick days, and promotes a healthy workforce to keep employees productive.

A stable energy system

There are low risks of large-scale failures if you compare solar or wind energy to fossil fuel. Instead of one building as the single distributor of energy, we have several parts that are spread in one area. Even if modules like solar arrays or wind turbines are spoiled, the system can continue working.

Renewable energy offers stable prices

Since the fuel source of fossil fuel is the controller of energy prices, renewable energy offers stable prices. As the market for renewable energy keeps on growing, the costs are dropping, and businesses are taking advantage of the economies of scale. For example, in the hotel industry, electricity comprises 60 percent of total hotel utility expenditures. As the uptake of renewable energy increases, the cost of fossil fuel will be forced to drop as the demand drops. This will help even places that use fossil fuel.

Renewable energy benefits landowners, businesses, and the local government

Renewable energy benefits tax revenues from landowners and project owners who get compensated. Local businesses also benefit from maintaining the projects, and this increases profits as it reduces the money spent on importing natural gas and coal. This also keeps the money circulating in the local economy and people to have a disposable income to support their families.

Limitless Energy is passionate about quality, affordable, and sustainable heating and electrical options for companies and families alike. See how we can help you make your lifestyle more eco-friendly here!

5 Emerging Technologies That Will Impact Energy Policy in the Next Decade


Most of the news in the media about energy concentrate on oil and gas prices. It is true that getting and talking about low-cost energy is newsworthy. However, the attention that is still paid to fossil fuels somehow overshadows the significant strides that are being made in alternative forms of energy, which derails opportunities to explore the emerging technologies further. Events like Waste Expo are helping bring attention to current issues and make eco-friendly technology more available. Below are a few technological advances worth looking into in energy.

Solar Glass

Solar energy and the technology of harnessing it have been around for a few decades now. One of the newest innovations in this area is solar glass, which is a transparent glass panel that collects and concentrates solar rays, converting them into energy. Solar glass is more efficient than the regular panel because it is not limited to infrared and UV light, it is able to absorb the transparent part of the light spectrum, which optimizes that energy converted and also features improved energy storage.

Thorium Nuclear Reactors

In most nuclear reactors, Uranium is used for fission; with the new technology, thorium replaces uranium. Thorium is recommended because the reactions are safer than those of uranium and plutonium reactors. The reactor allows immediate and impactful steps to a reaction, reducing chances of a meltdown. Thorium is also more easily accessible, and it creates less nuclear waste. If more research is conducted into this, maybe the fear which surrounds nuclear reactions will be greatly reduced. This is a sustainable energy alternative that might actually work.

Fuel Cell Electric vehicles

It is true that FCEV vehicles from companies like Honda have been around since 2008. However, a lot of gains have been made in hydrogen fuel cell technology since 2016. The hydrogen fuel cells are a stack of fuel cells that contain a cathode, anode and a proton exchange membrane. The proton combines with environmental oxygen to create water, which is environmentally friendlier than carbon dioxide.

Waste conversion into energy

This is a technology that has been developed to aggregate both recyclable and non-recyclable items in the environment and convert them into energy. The conversion creates gas, which can be used as fuel and plasma power known as plasma rock. There is a solid by-product of the process, but it is used as a building material.

These are some of the advances which have been made in the energy sector. As long as more focus is paid to sectors such as improved energy storage and alternative energy sources, it will be possible to be sustainable in energy production for the planet.

For more information about renewable energy and renewable technology, make sure to visit our FAQ page!

References:

Staying Green: How Families Can Show Mother Nature They Care

Living green is becoming a way of life for many communities. Most people already realise the importance of saving the planet and there are many ways to show mother nature that we care.

Reduce

Rampant consumption has been one of the key factors in the demise of our environment. According to an educational site, Sciencing.com, “our planet has a limited amount of natural resources and a limited capacity to process waste.” The burgeoning population consumes mass quantities of food, fuel, and materials on a daily basis. By cutting back on the quantity of products we use, we can make a huge impact on how many of the Earth’s resources are being depleted. For example, we can start using less paper. Think of cutting down completely on your paper mail, as according to camera bag manufacturer Wandrd,if everyone jumped on board it would reduce landfill waste by 800,00 tons in the U.S. alone.” Eating less, driving less, and using less are simple ways to reduce your carbon footprint. One of the biggest contributors to energy usage is due to poorly insulated homes, if we can minimise our heating demand through insulation the UK’s energy usage would be dramatically reduced.

Reuse

We no longer have the luxury of being a disposable society. At the peak of consumerism, it meant nothing to buy items, use them once, and throw them away. Today, we need to learn to reuse items and keep them out of landfills. With a little creativity, bottles, cans, bags, and boxes can often find a second, or even third life. If everyone refilled their water bottle just once before throwing it in the recycling bin, we would obviously only need half of the bottles being produced.

Recycle

“Hand-me-downs” is not a dirty word. Any time an item gets another life, that’s recycling. Most communities have facilitates you can take almost everything recyclable, even tetra packs, compost or old working TV’s, and so there is no excuse to have multiple black bags every week, or throw your old TV away. If you have a hard time getting your younger children start recycling, start with paper recycling as it can be easier to explain. Put out a bin in the kitchen or in the garage, and instruct them to place all paper they want to throw away there. Since many children understand that paper usually comes from trees, the explanation of why recycling is important can be simplified and better delivered when starting small.

Shop responsibly

For the things that we must buy, we can seek out products that are ethically grown, harvested, and manufactured. According to BrioStack, businesses are following customer demands in many industries and moving towards greener solutions. By making sure the things we purchase have been provided by companies who offer fair trade and environmentally sound practices, we can create clean commerce. For example, think of different ways of heating your home, or ways to cut down on using so much electricity. 

 

The best way to teach is by example and the best way to learn is by doing. It is not enough to simply talk about making a difference, we must act, as a collective consciousness, toward living the difference. With the whole family working together, we can shrink our carbon footprints and create a better environment for generations to come.

6 Tips to Make Your Business More Green

The typical office environment can waste a substantial amount of energy, and it can generate considerable amounts of waste unnecessarily. The reality is that you and your team could make a few smart changes that could have a dramatic and beneficial impact on the environment. If you are looking for smart ways to improve your office, these are a few green ideas that you can consider implementing soon.

Invest in Solar Energy

Between your computers, printers, copiers and other equipment, you may spend a small fortune each month on electricity costs. Lighting, HVAC usage, and other factors can further increase energy consumption. Rather than draw energy from non-renewable resources that generate considerable amounts of pollution, you could be drawing green energy from the sun. Many businesses have already installed solar panels to their building to offset at least a partial amount of their energy consumption, and this is a great solution for you to look into as well.

Upgrade Your Lights

Regardless of whether your facility uses green energy or not, it makes sense to upgrade your lighting to LED lights. These are more energy efficient, and they last longer. Because they do not need to be replaced as frequently, you can eliminate unnecessary waste in the landfills as well as waste associated with manufacturing light bulbs. This is a simple step that can have a considerable impact on the health of the environment.

Complete an Energy Audit

It can be difficult to determine which areas in your office consume the most energy. However, these energy-guzzling areas should be focal points for your conservation efforts. Through an office energy audit, you can identify which features are wasting energy unnecessarily, and you can take appropriate steps. For example, if you determine that your old HVAC or refrigerator in the break room are consuming a substantial amount of energy, replacing these items with newer and more energy-efficient models makes sense.

Allow Telecommuting

Your company’s policy on telecommuting may also affect how green your business is. Regardless of whether you have a team of educated individuals with online business degrees or you have a team of data entry specialists, their commute into the office and back home again uses non-renewable energy and causes pollution. When you allow telecommuting at least a few days each week, you can dramatically reduce this type of waste and pollution.

Donate Unnecessary Furnishings and Equipment

All businesses will need to get rid of equipment, computers, furnishings and more at some point. When the time comes to do spring cleaning around the office, consider donating or even selling items that are still in good condition. Doing so will stretch their useful life and may prevent objects from finding their way into a landfill.

Encourage Recycling

Another critical step to take if you are concerned about your company’s impact on the environment is to encourage recycling. For example, you can set up recycling trash cans around the office, and these receptacles can collect paper, aluminum cans and other recyclables that may be picked up by your city’s waste management department or taken to a local recycling center. Remember that many other items may be recycled as well, such as ink cartridges for the printers and toner cartridges for the copiers.

 

Most businesses can take at least a few steps to improve their impact on the environment in different ways. Analyze your current operation with these tips in mind. If you identify areas that could be improved, focus your attention on implementing beneficial change in your office. By doing so, you can make lasting changes that have a significant impact on the environment in the years to come.

Why Local Growing Works on an Environmental and Economic Level

Local agriculture is a key part of both sustainable growth plans and economic development. In most cases, the environment and the economy benefit from local, sustainable growing for the same reasons. Those benefits are causing this kind of agriculture to become more popular and used more, so it is important to have a basic understanding of the basics.

Conserving Fuel

The world wastes a huge amount of fuel to transport food and other agricultural products from farms to distant towns and cities. That is a necessity to support people in places that do not have any local agriculture, but it can be eliminated by moving the farms closer to population centers. Companies like doTERRA have utilized this method with their oils by sourcing directly from the growing regions and harvesters.

Doing so reduces fuel use, which offers two primary benefits. At an economic level, it reduces the cost of providing food, which allows for lower prices that enable families to save money for other purposes. It also helps the environment, both by cutting down on carbon emissions and reducing the need to drill for more oil to produce more fuel.

Secondary Income

Local agriculture does not need to be a full-time activity. While farmers certainly can support themselves by focusing on local products, individuals and families can also contribute by growing their own gardens in their yards or in local allotments. It isn’t very difficult to do, as proven by the success of the historical Victory Garden program. Personal gardens can produce a significant amount of food and help families and individuals save money.

Those gardens give families an additional source of income, either by selling the crops themselves, or cutting down on their grocery bill. Fresh fruits and vegetables are often the most expensive part of a family’s diet, so this can lead to improved nutrition and easier budgeting.

Localized Supply Chains

Businesses also benefit from local growing. Getting local access to those products can vastly simplify their supply chain, which reduces administrative costs and cuts down on the cost of transportation. The lowered costs bring more opportunities for new businesses, which can lead to economic growth in the community.

Growing Better Communities

Ultimately, growing food and other products locally is a tool that allows people to strengthen their communities. The economic benefits make the average consumer happy, while the environmental benefits make the area more pleasant for everybody. There aren’t very many other practices that merge environmental and economic advantages, so it is likely that local agriculture will keep expanding for a long time to come.

Is Renewable Energy a Realistic Option for Hospitals?

A growing number of healthcare centers are shifting from fossil fuels to renewable energy as energy costs continue to rise and the government tightens the regulations on carbon emissions. Renewable energy refers to energy produced from natural resources including wind, sunlight, geothermal and biomass. Hospitals use around two and one-half times the power consumed by the average commercial building. They are, therefore, in a position to save more on energy costs by adopting renewable energy.

Pros of renewable energy in hospitals

Renewable energy can offer a lot of advantages to hospitals. Apart from the fact that it is a continual source of energy, here are some of the other benefits of switching hospitals to renewable energy.

1. Reduced energy costs

Although the initial investment costs are high, the cost of operation for renewable energy is much lower than that of fossil fuels once everything is in place. That reduces the energy costs for the hospitals thus allowing them to redirect the money to other projects such as offering tuition reimbursements to employees pursuing online nursing programs.

2. Improved public health

Non-renewable sources of energy such as coal and natural gas are associated with a variety of health problems including heart attack, neurological damage, and cancer. Replacing such sources with renewable energy will improve overall public health and reduce health costs significantly.

3. Environmental conservation

Renewable energy has a much lower carbon footprint than fossil fuels. Additionally, it reduces depletion of natural resources since it is produced from replenishable sources.

4. Stable energy sources

An increase or decrease in the fossil fuels supply directly impacts inflations. The cost of renewable energy only depends on the amount of capital spent on infrastructure and not the cost of natural resources. The energy prices are, therefore, stable.

Cons of renewable energy in hospitals

Hospitals can benefit immensely by adopting renewable energy. However, just like fossil fuels, it has its shortcomings. Here are some of the disadvantages of switching hospitals to renewable energy.

1. High initial investment

Setting up the infrastructure for renewable energy can be a costly investment. The costs are exceptionally high for hospitals since they use a lot of energy. For instance, a lot of solar panels would have to be installed to produce enough power to meet all the energy requirements in a hospital. Some institutions may find financing a renewable energy project difficult to do in-house.

2. Unable to produce enough energy

Renewable resources usually produce less energy in a short span compared to fossil fuels. The technology used in renewable energy production is relatively new, and factors such as weather may hinder large-scale energy production. That could significantly disadvantage hospitals, which have very high energy requirements. An average hospital in the U.S. uses 27.5 kWh of electricity and 109.8 cubic feet of natural gas per ft² every year.

3. Not available everywhere

The raw materials required for renewable energy production such as wind and solar may not be available in all locations. It means that we would need to create an elaborate infrastructure to transport that energy to hospitals in said areas.

4. Vulnerable

Almost all renewable energy sources are susceptible to weather conditions and other climatic factors. For example, abundant rain may hamper solar production while moderate winds may reduce wind energy production. Such circumstances could force hospitals to increase their energy consumption.


Renewable energy is becoming more popular with each passing year. It can enable hospitals to reduce energy costs significantly. Those that rely on renewable sources can stand out from the rest by demonstrating their commitment to environmental conservation and community health. However, this form of energy demands natural resources availability, favorable market conditions and government policy support to be considered an economically viable option for hospitals.

 

Resources

https://www1.eere.energy.gov/buildings/publications/pdfs/alliances/hea_renewables_fs.pdf

https://bea.touchstoneenergy.com/sites/beabea/files/PDF/Sector/Hospitals.pdf

https://www.wgu.edu/online_health_professions_degrees/online_healthcare_degree

https://www.healthcaredesignmagazine.com/architecture/top-5-things-save-energy-hospitals/

http://www.ucsusa.org/clean-energy/increase-renewable-energy/fact-renewable-energy-is-reliable#.Wh2690qnFPY