Posts Tagged ‘Site Assessment’

Information Needed to Assess Solar Hot Water for Restaurants

Tuesday, June 8th, 2010 by Solar Fred

Lots of Dirty Dishes = Lots of Solar Hot Water (Photo: Flickr:Svadifari)

Last week, we discussed some of the basic information needed to design a solar hot water system for a Laundromat or laundry service. This week, we’re going to discuss restaurants.

But before we get into the logistics of a site assessment, let’s talk about the why solar hot water makes sense for restaurants and bars.

Saving money is always important, and solar hot water systems can significantly save restaurants money. Where?

The fact is that restaurants, bars, and commissaries just can’t function without steaming hot water to sanitize plates. So when you see hot steam emanating from the glasses, dishes, water glasses, wine glasses, pots and pans coming out of the dish washer, you’re also seeing money wasted.

Aside from saving on your gas or electric hot water bill, there’s also the added value of showing your customers that you’re green. So if you’re serving a healthy or organic menu, the curb appeal solar panels on your roof also says shows you’re committed to not only serving healthy food, but also serving Mother Nature. Enough said.

Restaurant Solar Hot Water Site Assessment – What we need to know.

Here’s a basic overview of what we need to know.

  • Who owns the building? If not you (or your franchise), you’re going to need permission from your landlord to install the solar collector panels on the roof.  The landlord may think that’s a good deal when he or see sees the numbers. Free Hot Water will help you with getting all the information your landlord will need.
  • Your type of dish washer. Every brand of dishwasher has specifications about how much water is used per load.
  • How many loads? It would help the estimate accuracy if your dishwasher employee could count how many loads are used during the course of a weekdays and weekends. We’ll also need to see how many bathrooms you have and kitchen sinks
  • Your gas bill. Taking into account the above and your gas powered kitchen stoves, grills, ovens, and heating systems, Free Hot Water can get a picture of your total restaurant gas usage. By seeing a year’s worth of your gas bill, our engineers can then estimate the portion of your gas bill that is used for water heating.
  • Boiler room location. As with any solar hot water system, our engineers will need to see where the gas powered hot water storage tank is located. The type of tank matters too. The room needs to be large enough to incorporate a solar hot water tank and heat exchanger. Of course, there also has to be access for pipes to reach the roof. If not, the solar hot water tank may have to be placed in another area.
  • Distance from storage room to the roof. To design an efficient system, hot water pumps will be involved. Free Hot Water engineers will need to know the distance from the storage tank area to the roof’s solar hot water collector’s.

The best and most accurate way to know if solar hot water is right for your restaurant or bar is to get a free quote. It will only take a bit of time, and even if a solar hot water isn’t right for your restaurant now, at least you’ll have seen the numbers to know for sure.

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Posted in Hotel Solar Hot Water, Restaurant Solar Hot Water, Site Assessment | No Comments »

Information Needed to Assess Solar Hot Water for Laundromats

Monday, May 31st, 2010 by Solar Fred

Photo: Flickr/LivinginMonrovia

You run a Laundromat or other type of laundry service that uses lots and lots (and lots) of hot water every day to wash clothes, uniforms, restaurant and hotel linens, etc.

You’re noticing that utility rates are starting to creep up, eating into your profits, and  now you’re wondering how much it would cost to offset your bill with free hot water generated by solar collectors.

First of all, there is no “one-size-fits all” solar hot water system for Laundromats or any other commercial business. Homes are more predictable, but commercial solar hot water systems require specific information to design the most cost effective systems.

Here are just a few things that Free Hot Water’s solar thermal engineers will have to know in order to design a solar hot water system for a Laundromat or laundry service. Some of this information can be obtained by us through your utility.

Laundry Assessment Information Needed (Partial List)

  • Type of utility. Are you gas? Electric? Oil? Steam? This information will be used for many reasons, including engineering and for estimating your utility savings over time.
  • Hot water usage. Based on a number factors, we’ll need to obtain an estimate, how much gas or oil is used for hot water and how much is used for other functions, such as heating the building and for your facility’s dryers. .
  • Monthly utility bills. It’s important to know patterns of usage during the different months and seasons. Solar hot water systems will produce more hot water during the summer, obviously. Systems must be designed to not overproduce during those months, while not under producing for the cooler seasons. As a result, the goal is to offset as much as 80% of your annual hot water needs.
  • Types of washers. We’ll have to know about your washers. Do you have large industrial washers? Small residential? Front loaders or top loaders? How many of each do you have? How many gallons are used per load for each type of washer?
  • Type of roof. We’ll have to know about your roof. Is it in good condition? How much area is available to install solar collectors? Also, is it a flat roof or slanted?
  • Roof orientation. If the roof is oriented in a particular direction, at what direction? The best solar potential is achieved when the solar collectors face south. However, there are ways to compensate for any direction, especially when you have a flat rooftop. The angle or pitch of a roof is anther factor.
  • Current storage tank area. We’ll need to know about your storage tank area. How far away is it from the roof? Is it on the roof? Wherever it is, is there room for another tank? Can we use your existing tank to incorporate solar hot water, or must it be replaced.

There are other details and data that need to be gathered in order to design an efficient and cost effective solar hot water system. The good news is that we can help you gather all of this information and give you a free solar hot water assessment.

If you have a Laundromat or other washing service, you have nothing to lose by contacting us for a free estimate. At best, we’ll show you your potential hot water savings by going solar. At worst, you’ll have a professional estimate and you’ll be able to benchmark yourself for another time when you’re ready to go solar.

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Posted in Hotel Solar Hot Water, Site Assessment, Solar Hot Water Value, Solar Thermal & Solar Hot Water News, Solar Thermal Training | No Comments »