http://www.homepower.com/

A homepower.com online membership gives you:

• Access to a growing pool of more than 1,250 individual feature articles, columns, Q&As, and more
• Robust search-and-filtering functionality to find what you need quickly and easily
• E-mail notification when each new issue of Home Power is available for download
• Access to the preceding three years (18 issues) of complete Home Power back issues in PDF, exactly as published

Become a homepower.com member today and get fast, unlimited access to the most reliable and detailed information available on small-scale renewable energy and sustainable living technologies.  

Online Membership - $9.95 for 365 days ~ Now Save $15.00 off the regular price of $24.95

    2 Year Online Membership - $19.95 for 730 days ~ Now Save $20.00 off the regular price of $39.95

3 Year Online Membership - $29.95 for 1095 days ~ Now Save $25.00 off the regular price of $54.95

I subscribe and there's a TON of info.   Everything from beginner to ultra technical, real life projects, well worth the subscription fee.