Denver Post: Rick Roser, in van, and Rhodes Thompson of Independent Power Systems fish around for parts Friday as they work to outfit a home in south Boulder with a solar-energy system. (RJ Sangosti, The Denver Post ) Despite the emphasis on renewable energy, money remains a crucial stumbling block between those with the good intentions and those with the good inventions, say clean-energy executives and activists. Solar-power companies report a surplus of ready-to-go projects without the …