Category Archives: Home Power (Decentralized Power)

Home Power Optimization: the REbus™Microgrid

Home Power: Meet the REbus™ microgrid!

Run your decentralized Renewables efficiently and put them to use flexibly. From solar PV generation to micro wind turbines and battery storage, include even electrical vehicle charging and integration!

A REbus™ microgrid is a flexible energy network operating alongside the existing AC distribution network. Click for some specs and details. REbus™ is the ideal standard for connecting different sources of clean energy, including solar modules and small wind turbines, into an integrated hybrid system. The REbus™ standard makes it possible to more efficiently store clean energy produced on-site, and is ideal for charging electric vehicles quickly. The performance of each product on a REbus™ microgrid is easily monitored through a built-in communication layer.

Clean power micro grid system, decentralized clean energy, home power, micor wind turbines

The REbus™ DC microgrid is a great solution for anyone looking to generate clean renewable energy whether on-grid or off-grid. It easily and efficiently integrates PV, wind and other alternative energy sources, allowing a single inexpensive inverter to connect to the utility grid. The communications link gives renewable energy consumers instant access to data from each of their renewable energy devices for monitoring or diagnosis.

Converting the power coming from your renewable energy source to a REbus™ microgrid is significantly more efficient than the same conversion to a convential AC grid. Plus, the high voltage DC transmission means lower current in the connecting wires which improves the power transfer efficiency.

Because of the reduced electrical current in the wires, the cost of wiring is reduced.

The integrated power line carrier communication scheme eliminates the need for expensive and unreliable wireless communications. In todays insanely wireless world, it is a good idea to use wired communications instead of Wi-Fi. Wired communications provide increase security, less EMF radiation and less exposure of humans, decreasing adverse health effects of EMFs. Optional Ethernet communications are also available.

The overall efficiency and flexibility of the REbus™ microgrid system is significant, reducing cost of de-centralized Renewables generation and further increasing acceptability and potential of these technologies by improved usability.


Small Wind: Home Turbine Airdolphin Z1000-24

Airdolphin Price Lowered by $300 Online for a Limited Time Special Offer

If you are interested in the High-Quality Japanese High-Tech Mini Wind Turbine Airdolphin Z1000-24, this may be your best chance of getting one at a significantly reduced price. Normally retailling in the U. S. between $5600 and $6500 or EUR 4900 in Europe, this next-generation Home Wind Turbine can be had for $5299 or roughly EUR 3900 plus shipping for a limited time only. We offer this popular small wind generator during the 2014 pre-construction season online at what appears to be the lowest price on the market. Compare prices for yourself and see if you agree and check for Airdolphin specs and details here.

Original Airdolphin Small Wind Generator Equally Useful for Island Grid/Off-Grid Deployment or as a Plug-In Turbine

One of the most silent small wind turbines on the market, Airdolphin is also one of the most innovative high-tech mini wind generators we have seen. Including no less than ten novel features, this mini wind turbine has much more to offer than just a very eye-pleasing appearance and the world’s lowest weight-to-output ratio of just 16.5 grams per Watt of rated power: Airdolphin’s overall power generation capability stands out and tops everything in its class, producing annual totals that make it a viable source of residential power.



small wind turbine airdolphin price home wind turbines

Airdolphin Well-Known Small Wind Turbine Brand Name

Due to extensive media coverage, Airdolphin has become something like a flagship Mini Wind Turbine and the darling of worldwide audiences. Despite the relatively high price per Watt installed and the rather steep $6000 to $6500 price tag usually attached to them by American vendors, there is tremendous interest in these two high-tech mini wind turbine models. After all, Airdolphin small wind turbines can still be cheaper and more efficient than solar PV, and the high-quality craftsmanship invested into Airdolphin small wind turbines on the manufacturer’s part and the resulting durability will go a long way in justifying the upfront cost.

  • rotor diameter 1.8 m
  • top power 3.2 KWp
  • generator voltage 24 V DC
  • inverters available for 230 V AC/120 V AC utility-grade power and/or grid-interconnection and feeding-out clean energy
  • cut-in windspeed 2.5 m/s
  • start-up windspeed (electronically) 0.0 m/s with ‘power assist’ function, improves extreme low-wind performance
  • extremely wide range of power-producing wind speeds: from 2.5 m/s to 50 m/s, i e from a light breeze to Taifun-force extreme weather
  • survival-windspeed of 65 m/s, meaning Airdolphin likely to be “last man standing”…
  • swing rudder system makes Airdolphin highly responsive to gusty winds and suitable for built-up areas, increasing total annual output significantly even in “unclean” wind situations
  • optimum 3.2 KWp power output reached at wind speed of 20 m/s for 20-40 secs
  • electronic generator breaking mechanism for RPM reduction in high winds and remote start/stop control (incl internet-based control and monitoring over standard web browser)
  • expected annual production of 1900 KWh to 2200 KWh at suitable sites
  • very good sites might come in at 2500 KWh/a or even more, depending on local wind situation
  • rated capacity 1.0 KW @12.5 m/s
  • UK green energy cashback of 39.3p per KWh exported to the grid (highest FIT band for <1.5 KW rated capacity)
  • exceptionally low noise levels due to advanced blade design
  • neat overall design with diecast alloy casing reducing optical impact on surroundings
  • maintenance-free design, electronically balanced blades, anti-corrosion teflon-based paint, screwless casing
  • design life of 20+ years
  • total weight only 17.5 kgs

Airdolphin small wind turbine output chart, micro wind turbines, SMA solar inverters, Enecsys micro inverters from and miniwindshop® online

A rich set of accessories, ranging from UL-certified/CE-certified grid-tie inverters to capacitor modules, a browser-based Remote Monitoring unit for controlling Airdolphin over the internet, and numerous additional system components are optionally available to add countless features to this truly unique and innovative mini wind turbine.

Airdolphin mini wind turbine proprietary controller, European-quality Home Power and micro wind turbines, SMA solar inverters, Enecsys micro inverters from and miniwindshop® online


Rated Wind-Speed of Mini Wind Turbines: Asian Manufacturers’ Dirty Little Trick

Small wind turbine classification is somewhat blurred due to the fact that some manufacturers have been pushing to rate their turbines at a very high wind speed of 12 m/sec instead of the usual lower 8 m/sec. As this might give their turbines a less impressive image, resorting to that artificially high (and both unprofessional and rather sleazy) 12 m/sec “standard” is increasingly used in the marketplace by Asian manufacturers to trick buyers into believing that their products are more powerful than they truly are. This will lead to disappointment and dissatisfied customers in the long run. It might even give Mini Wind Power a bad name in general over traditionally less-economical Solar Energy photovoltaic technology and re-infuriate that quite unreasonable “holy war” between Home Wind Power and Solar Energy.

On top, that “little trick” from Asia is nothing more than unfair competition, confusing customers and, as a result, making many of them arrive at a wrong buying decision. Certainly for the advantage of cheap (but, at closer scrutiny, not-so-powerful Chinese, and sometimes Japanese) wind turbine models.

Many British, European and U. S. manufacturers’ adherance to that solid 8 m/sec rule is therefore very commendable. Ratings at different (higher) wind speeds can then be provided separately for easier comparison and debunking those Asian over-clocked “ratings”.

Home Power as a Business: Using Renewables for Hedging Yourself Against Two Major Risks

Home power may very well save you during the upcoming economic downturn. It’s a bit like owning precious metals or “opting out” of our over-networked way of life in other ways. The beauty of investing in residential-scale Green Energy is its capability of hedging against two of the most likely economic risks threatening your money today: overall currency instability and consumer price inflation. These might materialize as soon as the end of summer 2012 and would likely be visible as a slight — and then accelerating — downturn and an increase in prices including energy and utility bills at one go. The supporting fundamentals for both are in place, it’s just a matter of time for them to materialize. As noted above, both are likely to happen rather soon (and yes, even though it may sound contradictory from a conventional economic point of view to have both a severe recession or even deflation and an increase in energy prices at roughly the same time, this is still a very likely scenario).

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Why Mini Wind?

WIND is created by ineven heating of the surface of the earth. Wind turbines harness the kinetic energy in the wind and convert it into electrical energy. This energy can be used to power your home and work facilities.


Wind is an abundant and naturally occurring resource. Wind energy is one of the cleanest ways to produce electricty. Very little processing needs to be done to convert it into free and clean energy. Operation of a wind turbines produces no pollution with no emissions, exessive noise or waste heat by-product. Particularly with mini wind generators lacking most of the detrimental effects of large-scale wind farms, wind can be harvested with minimal impact on the environment, a very important factor in meeting our increasing energy needs. Mini wind systems can be deployed for distributed generation (right where the power is consumed) and thus save on wasteful transmission (there is up to 50% loss of energy in the grid alone) as well as prevent visual impact and EMF radiation from grid lines.


Wind is an inexhaustible resource. Operation and maintenance expenses can easily be forecast; especially with high-quality turbine systems designed to operate with no scheduled maintenance. Robust design and an expected life of 25 to 30 years provide added economic feasibility.


You will enjoy economic as well as environmental benefits from wind energy. Home Wind installations contribute energy and make cost savings possible for owners by offsetting power requirements from the grid. It is the most cost efficient way to produce electricity on your own, and with government incentives and rebates, the payback period on a mini wind system can be as little as nine years in some locations.

Ready-Made Accessory Kits for Your Wind Turbine

At, we are paying attention to detail: as buyers sometimes find it difficult to get the right accessories (large-diameter DC cabling, DPDT switches that can take sufficient current, fuses & more), we have come up with several turn-key sets for our most popular mini wind turbines. Click the links for micro inverters, fuses, high-current DPDT switches or larger-diameter cables and more.

Low-Energy Lamps: What’s Right, What’s Wrong?

When it comes to low-energy lamps, it is often confusing to know what’s right and what’s wrong: too much irritating advertising, sometimes unwarranted claims of “eco-friendliness”, price wars that can distort the picture. In order for you to make informed decisions, we would like to help you educate yourself about energy-saving lamps.

First of all, it is important to point out that CFLs are NOT the way to go: every tube including the ones contained in CFLs leave poisenuos heavy metals when discarded (like mercury contaminating drinking water supplies). CFLs also have a high-current “ignition” unit that emits Electromagnetic Fields or EMFs that are potentially harmful to your health. Also, CFLs are roughly 30% less energy-efficient than their more recent LED counterparts. The last point alone partly defies the idea of “eneergz efficiency” for CFLs.

LED (light-emitting diodes) have entered the race for lighting our buildings a lot later but have been around for some time now. Even if their price tag usually shows higher upfront prices, these are amortized by LED-based lamps’ better efficiency. An old 60 W light bulb can be replaced with LED lams of just 4 W, therefore using just 1/15th of power. So it’s a good idea to pay a few pennies more upfront and get LED lamps right away that last longer (25-30 years, almost like a good mini wind turbine). The bottom line is that LED lamps surpass those low-energy CFLs and can total 90%-94% in energy savings and pay for themselves many times over, despite their higher initial purchasing cost.

Also, LEDs don’t wear out from heavy turning on and off and are thus suitable for all kinds of rooms including the ones you enter for just a few moments before switching the light off again. Remember, those strobe lights for bikes use LEDs without any wear and tear.

Add to this the absence of any harmful EMFs and the peace of mind that you may use them even at less than 5 ft from your head, and the LED is the clear overall winner for your lighting needs.

CSP Offering Powerful and Low-Cost Power Solutions

The CSP generator unit we announced earlier this year is both extremely powerful and small in size. Using CSP or Concentrating Solar Power, the SopoLite™ unit generates heat for both power generation or direct heat applications (hot water, air conditioning/refrigeration, process heat). The SopoLite™ system is available as a part of the Mini Wind & Solar Technologies program by ecoPen Ltd. For details about CSP in general and the SopoLite™ system, please e-mail or leave a Reply to this article below.

SopoLite™ can be adapted to Home Power applications and is suitable for larger-scale power generation including commercial process heat and electricity generation using thermal engines. Sopogy trough technology can be configured to replace natural gas or other fossil power plants and significantly reduce carbon emmissions.

Micro CSP SopoLite system, installed to a car trailer for mobile operation.

The system consists of a scaled-down version of Sopogy’s parabolic trough that is able to follow the sun from east to west during the course of the day. As in a typical solar field, a mineral oil circulating through the system gains temperature as the parabolic trough is focused at the sun with a proprietary tracking system. The heat generated in this fashion is typically used for electricity generation, air conditioning and process heat applications. On the SopoLite™, various sensors measure the temperature gain, the flow velocities, solar irradiance, wind speed, rainfall and ambient temperature. These parameters are used to determine the thermal output of the collectors. The sophisticated controls allow remote access to evaluate all relevant data through an interactive graphic interface.

Micro CSP SopoLite system, installed to a car trailer for mobile operation.

CSP systems can be configured and dimensioned to suit all kinds of energy needs, from small Home Power generation and business/rental generators to larger arrays covering entire communities or commercial refer warehouses, for example. One of the key benefits of these CSP systems is customisation and modularity.

Micro CSP SopoLite system, installed to a car trailer for mobile operation.

The pre-configured variants of the SopoLite™ system are able to cover larger and commercial energy needs and are priced around £49,600.00 in the U. K. or roughly €54,800.00 in Eurozone and other EEC countries. Although residential-scale or small business systems can be deployed, SopoLite™ systems are tailoured for and primarily focused towards larger-scale residential developments, real estate management, commercial energy users and businesses who want to green their operations and significantly cut on high energy cost.

In the U. K., SopoLite™ systems are expected to be eligible for payments of 18.6p per KWh equivalent generated under the MCS Solar Thermal scheme (green energy cashback).

For further details, to discuss system requirements or to receive a no-obligation quote for an individual project, please contact us using the Reply field below.

NEW: iPhone app monitoring Home Power systems

A new iPhone app for monitoring Home Power systems while on the move has been announced by Enecsys, a micro inverter manufacturer based in the U. K. and Germany.

The new iPhone app is compatible with all Apple iOS devices (iPhone, iPad and iPod touch) and displays generation information from Enecsys micro inverters. Micro inverters are a novel and efficient way of converting DC power from solar panels to appliance-grade AC (120 Volts/60 Hz in America or 230 Volts/50 Hz in Europe). Unlike central or string inverters connecting to an entire array of PV panels and requiring complicated and costly DC cabling, micro inverters plug in to one or two solar panels each and connect to the grid using ordinary plugs and a free socket.

Whereas central and string inverters usually require installation by a certified electrician, micro inverters are suitable for do-it-yourselfers as setup is easy and similar to plugging in a PC, radio or stereo equipment.

The new iPhone app makes monitoring of photovoltaic modules even simpler and more convenient. Launched at Intersolar Europe 2011 later this month, the app will be available direct from Apple’s iTunes store. Please register here to get notified once the app is released and available for immediate download.

Web Frontend Upgraded

The website has been upgraded to provide significantly better response times even during higher-volume traffic. With new — and despite higher CPU clock speeds and overall better specs even more energy-efficient — hardware, we have addressed past performance issues and hope to provide a better user experience for everyopne interested in Mini Wind & Solar Technologies.