Posts Tagged ‘solar thermal’

Anne Arundel County Solar Installation

February 7th, 2009
Maryland Solar Installation

Maryland Solar Installation

AtisSun just installed this solar water heater a few days ago.  This Anne Arundel County homeowner decided to include a solar water heater in his complete home renovation project.  His new Schuco flat panel solar energy system will last for decades an provide substantial savings over the years. He has also dramatically reduced his carbon footprint. Way to go!

Bang for Your Buck with Solar

January 30th, 2009

If you live in Maryland and have completed any research on solar PV (photovoltaic) for home you probably know it can be pricey. I will be writing more posts on the detailed costs of solar PV in the near future, but for now let’s look at a quick solar PV – solar thermal comparison.

marylandsolarthermalpanels01 Bang for Your Buck with SolarNow, I am a huge fan of solar PV and truly believe if you are able to make the investment you will not be disappointed but, solar thermal systems or solar water heaters will get you the most bang for your buck. If you just can’t bring yourself to make the larger investment in a solar PV system to produce electricity for your home it is definitely worth considering a solar thermal system.

Your existing water heater is likely the least efficient use of energy in your home. Solar water heaters are incredibly efficient and do an amazing job of offsetting this poor use of energy. Even if you install a complete solar PV system it is wise to install solar thermal collectors for the water heating portion of your energy usage. Solar water heaters are so efficient that is does not make sense to heat your water with electricity generated by a solar PV system.

So, if you are considering a complete solar PV system, but are concerned about the cost you really should look into starting with a solar water heater/solar thermal system. You will get the most bang for your buck and it will compliment a future solar PV installation.

Tankless Water Heaters vs. Solar Water Heaters

August 18th, 2008

Tankless Water Heaters

Tankless heaters don’t store and heat water, they heat it on demand as you need it. Tankless water heaters are energy-efficient in large part because they have virtually none of the “standby” heat loss that is inherent in the standard tank- or “storage-” type water heaters in this country.

tankless01 Tankless Water Heaters vs. Solar Water HeatersOne complaint some have about these devices is that if they aren’t sized properly, they aren’t capable of delivering enough water to serve several uses at the same time. Both of these problems are usually due to the unit being undersized for the anticipated usage. Another complaint is that when multiple people in a house attempt to use the hot water simultaneously, nobody gets enough of it.

Tankless heaters also require 5-15 seconds to heat water to its desired temperature. In large homes where there are already long waits for hot water, the additional time it takes to reach the user may seem interminable, and it also wastes water.


Solar Hot Water Heatersannapolis_solarhouse01 Tankless Water Heaters vs. Solar Water Heaters

With many people in Maryland and across the country now focused on reducing their carbon footprint, there has been increasing interest in renewable energy. Arguably the best and most cost-effective way to do this is to install a solar-thermal water heating system. Solar-thermal means using the heat of the sun directly, rather than turning the sun’s energy into electricity then using the electricity to do the work. Most people use lots of hot water for washing and cleaning, so this is an excellent place to start reducing carbon emissions.

Solar-thermal water heating systems are becoming more and more cost effective due to recent rises in energy prices. Depending on the levels of sunshine where you live, and how much hot water you use, the system will generally pay for itself within a short period of time. In addition, houses with eco-friendly features tend to stand out in the market and sell more quickly. You should notice an immediate fall in your fuel bills, particularly in the summer. Costs can be offset even further by government grants which help people install solar water heating.

How Solar Hot Water Works

August 5th, 2008

Solar hot water systems are relatively easy to understand. These are the basic functions:

-The sun heats fluid in roof mounted solar collectors.

-A pump circulates the hot liquid between the collectors and your water tank.

-The hot liquid heats the water inside your water tank.

-The hot water is now available for household use.

This video, provided by Velux, explains the basics of solar water heating for your home. Check it out…

[youtube=http://www.youtube.com/watch?v=VOa99PI46l0]