We love your simplicity! We're excited, do you mind to have another creative attempt, is it possible with a slightly different mark is before the letters?
I used a tulip in the design for a few reasons. the tips of the tulip mimic rooftops where the panel is installed the 2 tulips stacked, 1 red 1 blue create a boiler with a heating element shown in the negative space. The tulip is also a great way to show your product as environmentally friendly. A unique way to brand your company with a very smart memorable logo.