Cleantech at home

I've been getting more interested in the opportunities for hardware+software cleantech solutions for the home. There are a lot of companies exploring different aspects of this space, such as sprinkler automation, energy monitoring, device control, etc. Here's a list of those I've run across recently:

• Hydropoint sells WeatherTRAK "smart irrigation" systems for both commercial and residential applications. A fancy controller replaces your existing one, and communicates wirelessly over GPRS to the WeatherTRAK system. The system is tied in with up-to-date weather reports to proactively and automatically monitor your watering schedules, taking into account rainfall, temperature, etc. Check out the Henry's Garden Show video on this page. For commercial applications, you can also access your system from anywhere via a browser. This allows you total remote control over your irrigation. In addition, the system can also sense leaking or defective sprinklers. Hydropoint is based in Petaluma, CA.


• Green Wireless Systems, based in San Francisco, sells freeWire, a wireless irrigation system. Their system uses wireless connections to both existing valves as well as to special wireless moisture probes. This eliminates the need to run and maintain wiring from your controller box out to the valves. The probes inform the system when to water based on current soil moisture conditions. freeWire also provides remote access over the Internet so you can remotely control your system.


• Tendril provides products to create an in-home, Zigbee-based network that offers advanced energy monitoring and control. Their product includes a smart thermostat, a stand-alone information display panel, a Zigbee-IP gatway box to connect to the Internet, and small Zigbee devices that plug into any outlet to "smarten up" any appliance or device. Of course there's also a web portal for monitoring and controlling all of this. The catch? To use their system, your home must already be equipped with an AMI smart meter (see below).


• Tangerine Network Devices (only a stealth page for now) is also working on a Zigbee-based system similar to Tendril's.


• Ambient Devices, the folks that make the glass Orb which glows green/yellow/red according to market conditions, weather, traffic, etc., also offers a product called the Energy Joule. It's a small plug-in device that monitors your current overall energy usage, but also will glow green/yellow/red to reflect current energy prices based on demand levels throughout the day. It looks cool, but their web page says it can only be used by customers of Consumer Powerline, but the provided link is broken. That company changed their name recently to CPower, but their new website has no reference to the Energy Joule. They appear to be a services-based company mostly operating in the New York area. So, maybe this isn't for real at this point.


• Aclara is an AMI smart meter system provider, and is the supplier for PG&E's SmartMeter program (the largest such deployment in the U.S.). Utilities are installing smart meters across the country, but not very quickly. In my area, the estimate is somewhere between May 2009 and August 2010 before I will have one -- so far, PG&E has installed only about 200,000 Aclara electric meters out of a total of over 5 million it expects to install. Their big incentive is to implement something known in the biz as Demand Response, which basically allows the utilities to reach into your house and turn your stuff off during times of peak usage. It remains to be seen whether consumers will accept that, although there are some benefits such as potentially saving cost by avoiding the use of energy during expensive periods of the day, and perhaps avoiding brown-outs if enough people participate. On the other hand, some early smart meter recipients were seeing their bills skyrocket after the smart meters were installed -- not cool.


• Itron is a $1.5B established provider of products and services to the utility market. Their OpenWay is an AMI smart meter as described above, with a Zigbee chip, and they have partnered with Tendril to promote a complete system in the home.